The following base Zoning Districts are hereby established:

Effective on: 1/1/1901, as amended

1. References in this Ordinance to "nonresidential", "office," "residential", and "agricultural" Zoning Districts shall be construed as follows:
   1.  Nonresidential.
      1. CI, Civic / Institutional;
      2. NC, Neighborhood Commercial;
      3. RC, Rural Commercial;
      4. CC, Community Commercial;
      5. RI, Rural Industrial; and
      6. IN, Industrial.
   2. Office.
      1. GO, General Office; and 
      2. RO, Residential Office.
   3. Residential.
      1. RR, Rural Residential;
      2. S-3, Special Management;
      3. R-4, Low Density Residential;
      4. MHS, Mobile Home Subdivision;
      5. MHP, Manufactured Housing Park; and
      6. UR, Urban Residential.
   4. Agricultural.
      1. NR, Natural Resource Management;
      2. OS, Parks, Recreation and Open Space;
      3. RM, Resource Management;
      4. AG-15, Wadmalaw Agricultural Preservation;
      5. AG-10, Agricultural Preservation;
      6. AG-8, Rural Agricultural; and
      7. AGR, Agricultural Residential.

Effective on: 1/1/1901, as amended

Under the hierarchy established by this Ordinance, the NR, Natural Resource Management District is the most restrictive Zoning District, while the IN, Industrial District is the least restrictive Zoning District. Table 4.1.1, Establishment of Zoning Districts, presents the districts in order, from most to least restrictive. The Planned Development, Overlay and Special Purpose Zoning Districts are not included in the Zoning District hierarchy (see Chapter 5, Overlay and Special Purpose Zoning Districts).

Effective on: 1/1/1901, as amended

1. Existing Lots of Record with Split Zoning Districts. 
   1. Uses and Development standards for existing Lots of record with split Zoning Districts shall be limited to the most restrictive Zoning District within the Parcel per Article 1.9, Conflicting Provisions, and Article 4.1.3, Zoning District Hierarchy.
   2. No new Parcels with split Zoning Districts shall be created. A property boundary line may be created to eliminate the existing split Zoning Districts, provided the proposed parcels meet the minimum Lot Area requirements for the Zoning District each parcel is to be located.
2. This Section does not apply to Mixed Use Developments such as parcels zoned UR, PD, or the Overlay and Special Purpose Zoning Districts.

[Commentary—Planning Staff recommends that Property Owner(s) with existing split Zoning Districts apply for a Zoning Map Amendment (Rezoning) in order to eliminate split Zoning Districts if the Comprehensive Plan supports the proposed future land use or file a Comprehensive Plan Amendment.]

Effective on: 1/1/1901, as amended

Density refers to the number of Principal Dwelling Units per unit of land area. Density is calculated by dividing the number of Principal Dwelling Units on a site by the gross area (in acres) of Highland of the site on which the Dwelling Units are located. Freshwater Wetlands and OCRM Critical Line Area shall not be used to calculate Density. The number of Principal Dwelling Units allowed on a site is based on the presumption that all other applicable standards of this Ordinance shall be met. The maximum Density established for a District is not a guarantee that such densities may be obtained, nor shall the inability of a Development to achieve the stated maximum Density be considered sufficient justification for varying or otherwise adjusting other Density, Intensity or Dimensional Standards of this Ordinance. 

In the Rural Area, as defined in the Charleston County Comprehensive Plan, Density is calculated from the acreage of the parent tract as it existed on or prior to April 21, 1999.

Effective on: 1/1/1901, as amended

1. A.
   Measurement. Lot Area refers to the horizontal land area within Lot Lines, unless otherwise stated.
2. B.
   Exceptions. No Zoning Permit, Building Permit or Development approval may be issued for a Lot that does not meet the minimum Lot Area requirements of this Ordinance except in the following cases:

   1. 1.
      Nonconforming Lots may be used in accordance with the provisions contained in CHAPTER 10, Nonconformities, of this Ordinance.
   2. 2.
      Utilities using land or an unoccupied Building covering less than 1,000 square feet of site area shall be exempt from minimum Lot Area standards.
3. C.
   Absence of Sewer or Water. In the absence of public water or public sewer, no Zoning Permit or Building Permit shall be issued until the Lot meets all applicable requirements of this Ordinance and the South Carolina Department of Environmental Services (DES).

Effective on: 1/1/1901, as amended

Setbacks refer to the unobstructed, unoccupied open area between the furthermost projection of a Structure and the property line of the Lot on which the structure is located, except as modified by the standards of this Section. The terms "unobstructed" and "unoccupied open area" in this section shall refer to anything that is constructed or erected within the setback that is determined to have a permanent location on the ground, and this includes fill material used structurally and non-structurally, unless otherwise approved by the Public Works Department Director.

1. A.
   Exceptions to Setbacks. Every part of a required Setback must be open and unobstructed from the ground to the sky except as set out in this Section.

   1. 1.
      Trees, shrubbery, or other landscape features may be located within any required Setback; however, they shall be selected for site specific conditions. Plant material to be located adjacent to public Drainage Easements and Right-of-Ways shall be selected and placed not to impede future access. Additionally, vegetation planted within Utility Easements shall be selected and sited to minimize pruning for future maintenance and clearance of such utilities. The Zoning and Planning Director may require modifications (substitutions and relocation) of plant material on proposed landscape plans when necessary to assure access and ease of maintenance to any Easements and Right-of-Ways and to preserve the public health, safety, and welfare.
   2. 2.
      In all Zoning Districts, fences, hedges and walls may be located within any required setback, provided that no fence, wall or hedge shall obstruct the view of vehicular access to any Roadway between three and 10 feet in height above grade. For the safety of pedestrian and vehicular traffic, in residential Zoning Districts, an unobstructed vision clearance triangle shall be maintained along intersections of residential driveways with adjacent Roadways. The vision clearance triangle shall be formed by the connection of a perpendicular line measuring 15 feet from the point of intersection at the edge of the travelway into the driveway and a 15 foot parallel line away from the point of intersection along the Roadway (see Figure 4.1, Residential vision clearance triangle). Residential driveways along Roadways with a classification of collector or higher may be subject to a greater distance of measurement.
   3. 3.
      In all Zoning Districts, elements that are not designed or intended to have a permanent location on the ground as determined by the Zoning and Planning Director including, but not limited to, vehicles, boats, RV’s, lawn and garden furniture and equipment, and similar items.

Figure 4.2.3 – Residential Vision Clearance Triangle
Note: Not to Scale

1.   
   4. 4.
      Driveways may be located in front and Street Side Setbacks.
   5. 5.
      Sidewalks may be located within any required Setback.
   6. 6.
      Utility lines, wires and associated structures, such as power poles, may be located within any required Setback.
   7. 7.
      Uncovered porches, uncovered steps to Building entrances, uncovered patio decks and uncovered balconies may extend up to five feet into any required Front, Rear or Street Side Setback.
   8. 8.
      Openwork fire balconies and fire escapes may extend up to five feet into any required Side Setback.
   9. 9.
      Sills, belt courses, cornices, buttresses, eaves, and other architectural features may extend up to two feet into any required Setback.
   10. 10.
       Chimneys and flues may extend up to two feet into any required Setback.
   11. 11.
       Satellite dish antennas may be placed in required Rear Setbacks.
   12. 12.
       Mechanical equipment, including Heating Ventilation and Air Conditioning (HVAC) equipment, may be extended up to five feet into required Side or Rear Setbacks in all Zoning Districts.
   13. 13.
       A Variance may not be required when a Structure encroaches less than 12 inches into any required Setback as shown on an as-built survey or site plan drawn to an engineer's scale. Such administrative Setback reductions shall be determined by the Zoning and Planning Director on a case by case basis.

2. B.
   Contextual Setbacks. Notwithstanding the Front Setback requirements of the applicable Zoning District, the front Building line of any Structure or Addition to a Structure may be as close to the Street as the front Building line of a Structure located on any Lot that is immediately adjacent to the subject Lot. If the subject Lot is located between two developed Lots, the front Building line of the Structure that is set back further from the Street shall apply to the subject Lot.
3. C.
   Setback Reductions. Where the Front, interior Side and Rear Setbacks of the applicable Zoning District reduces the buildable width of a Lot to less than 20 feet, the Zoning and Planning Director shall be authorized to reduce the required Setbacks as much as necessary, up to a 15-foot setback. For Lots created prior to October 26, 2021, where the Front, Interior Side, and Rear Setbacks of the applicable Zoning District reduces the buildable width of a Lot to less than 40 feet, the Zoning and Planning Director shall be authorized to reduce the required Setbacks as much as necessary, up to a 15-foot Setback.
4. D.
   Front Setbacks on Narrow Rights-of-Way and Narrow Ingress/Egress Easements. Where a Lot abuts a Right-of-Way or ingress/Egress Easement with a width of less than 50 feet, the required Front Setback shall be measured from the centerline of the Right-of-Way or Easement, provided all Building Code and fire/safety requirements are met and the setback shall not be less than 15 feet from the edge of the Right-of-Way or Easement. On Lots where the Front Setback is 50 feet or greater, the Front Setback on the secondary Street may be reduced to 25 feet.
5. E.
   Setbacks on Corner and Double-Frontage Lots. On Corner and Double-Frontage Lots in all Zoning Districts except the R-4 and UR Zoning Districts, Front Setback standards will apply to each Lot Line that borders a Street. The remaining Lot Lines will be subject to Side Setback standards. There is no Rear Lot Line.   
   
   In the R-4 and UR Zoning Districts, the Front/Street Side Setback requirements shall apply to each Lot Line that borders a Street, provided, however, that the applicant shall identify one Street Frontage as the Front Lot Line to which the Front/Street Side Setback shall apply and the other Front/Street Side Setback may be administratively reduced by up to 50 percent. The Rear Setback requirements shall apply to the Lot Line opposite the Front Lot Line and the Side Setback requirements shall apply to the interior Lot Line. In cases, where the Street Frontages are opposite one another, the Side Setback requirements shall apply to the remaining Lot Lines and there is no Rear Lot Line.
6. F.
   Reduction for Public Purpose. When an existing Setback is reduced because of conveyance to a federal, state or local government for a public purpose and the remaining Setback is at least 50 percent of the required minimum Setback for the district in which it is located, then that remaining Setback will be deemed to satisfy the minimum Setback standards of this Ordinance.
7. G.
   One Time Subdivision of a Nonconforming Lot of Record Existing Prior to April 21, 1999. A one time subdivision creating one Lot from a Nonconforming Lot of record (Lot existing prior to April 21, 1999) shall be allowed if each Lot resulting from the Subdivision meets the minimum Lot Area of the Zoning District. An Ingress/Egress Easement may be utilized to access a proposed Lot (singular) to the rear of the property. The setback from the edge of the Easement will be the Side Setback required for the Zoning District. The Side Setback from the edge of the Easement will only be utilized to create one proposed Lot from the provision of a One Time Subdivision of a Nonconforming Lot of Record Existing Prior to April 21, 1999 
8. H.
   Setbacks for Waterfront Lots. Setbacks for Waterfront Lots shall be in accordance with the standards contained in Article 4.24, Waterfront Development Standards, of this Ordinance. 

(Ord. No. 2362, 10/14/2025; Ord. No. 2375, 01/27/2026) 

Effective on: 1/27/2026, as amended

1.  Fences or Walls. 
   1. In the case of Fences or Walls, height shall be measured from ground level on the higher side of the Fence or Wall.
   2. Fences and Walls shall not limit or obstruct the flow of water in natural drainage courses or Drainage Easements. Fences built within an Easement may be removed for Utility purposes with all costs for removal and restoration borne by the Property Owner. Fences across or through overland drainage areas shall not inhibit the flow of overland surface water.
2. Exceptions to Height Limits. Unless otherwise expressly stated, the height limitations of this Ordinance shall not apply to any of the following:
   1. Farm Buildings in any Agricultural Zoning District (see Sec. 4.1.3, Zoning District Hierarchy);
   2. Electrical power transmission lines;
   3. Roof-mounted Solar Collectors;
   4. Belfries, cupolas, spires, domes, monuments, flagpoles, chimneys, radio/television receiving antennas, or chimney flues; or
   5. Bulkhead, elevator, water tank, or any other similar Structure or necessary mechanical appurtenance extending above the roof of any building, if such structure does not occupy more than 33 1/3 percent of the area of the roof.

The area under Buildings that is used for parking is exempt from maximum Building Height calculations, up to one Story, if the area dedicated to parking under the building equals 51 percent or more of the building footprint. This applies only to Multi-Family Dwellings and nonresidential Development.

Effective on: 1/1/1901, as amended

1. Building Coverage is the proportion, expressed as a percentage of a Lot covered by Buildings (principal and accessory) or roofed areas, as measured along the outside wall at ground level, and including all projections, other than fire escapes, canopies and the first two feet of a roof overhang. Swimming Pools (excluding the pool decking) shall be included in Building Coverage.
2. Impervious Surface Coverage is a surface which has been compacted or covered with a layer of material so that it is highly resistant to infiltration by water. This term includes, but is not limited to, most conventionally surfaced streets, roofs, sidewalks, parking lots, and other similar structures. 

Effective on: 1/1/1901, as amended

A one-time subdivision creating one Lot from a Nonconforming Lot of record (Lot existing prior to April 21, 1999) shall be allowed, if each Lot resulting from the Subdivision meets the minimum Lot Area requirement of the applicable RM, AG-15, AG-10, AG-8, AGR, RR, S-3, R-4, or MHS Zoning District. An ingress/egress Easement may be utilized to access a proposed Lot (singular) to the rear of the property. The Setback from the edge of the Easement will be the required Side Setback required for the Zoning District. The Side Setback from the edge of the Easement will only be utilized to create one proposed Lot from the provision of a One Time Subdivision of a Non-Conforming Lot of Record Existing Prior to April 21, 1999.

Effective on: 1/1/1901, as amended

The NR, Natural Resource Management Zoning District implements the Conservation Management policies of the Comprehensive Plan.

Effective on: 1/1/1901, as amended

Uses allowed for properties in the NR Zoning District that are not located on Dewees Island or Goat Island shall be in accordance with the Use Regulations of CHAPTER 6.  Uses allowed for properties in the NR Zoning District that are located on Dewees Island or Goat Island are contained in Art. 5.16, Natural Resource Management Special Purpose Zoning District.

(Ord. No. 2316, 10/29/2024)

Effective on: 10/29/2024, as amended

Development on properties in the NR Zoning District that are not located on Dewees Island or Goat Island shall be subject to the Density/Intensity and Dimensional Standards included in Table 4.3.3 below.  The Density/Intensity and Dimensional Standards for properties located on Dewees Island and Goat Island are contained in Art. 5.16, Natural Resource Management Special Purpose Zoning District.

(Ord. No. 2316, 10/29/2024) 

Effective on: 10/29/2024, as amended

The OS, Parks, Recreation, and Open Space Zoning District implements the Parks, Recreation and Open Space policies of the Comprehensive Plan.

Effective on: 1/1/1901, as amended

Uses are allowed in the OS district in accordance with the Use Regulations of CHAPTER 6, Use Regulations.

Effective on: 1/1/1901, as amended

All Development in the OS Zoning District shall be subject to the following Density/Intensity and Dimensional Standards:

Effective on: 1/1/1901, as amended

Development in the OS Zoning District shall comply with all other applicable regulations of this Ordinance, including the ​​​​​standards of CHAPTER 9, Development Standards.  

Effective on: 1/1/1901, as amended

The RM, Resource Management Zoning District implements the Resource Management policies of the Comprehensive Plan.

Effective on: 1/1/1901, as amended

Uses are allowed in the RM District in accordance with the Use Regulations of CHAPTER 6, Use Regulations.

Effective on: 1/1/1901, as amended

All Development in the RM District shall be subject to the following Density/Intensity and Dimensional Standards:

Effective on: 9/10/2017, as amended

Development in the RM District shall comply with all other applicable regulations of this ordinance, including the Development standards of CHAPTER 9, Development Standards.

Effective on: 1/1/1901, as amended

The AG-15, Agricultural Preservation Zoning District implements the Wadmalaw Agricultural Preservation policies of the Comprehensive Plan.

Effective on: 1/1/1901, as amended

Uses are allowed in the AG-15 District in accordance with the Use Regulations of CHAPTER 6, Use Regulations.

Effective on: 1/1/1901, as amended

1. A.
   Density/Intensity and Dimensional Standards Table. All Development in the AG-15 District shall be subject to the following Density/Intensity and Dimensional Standards:

2. B.
   Development Along Critical Line. The area of a Parcel in the AG-15 District within 1,000 feet of the OCRM Critical Line has a Maximum Density of one Principal Dwelling Unit per three acres with a minimum Lot Area of three acres, only if the Parcel abuts or contains the OCRM Critical Line and the newly created Lots are completely contained within 1,000 feet of the OCRM Critical Line and abut the OCRM Critical Line. The remaining Acreage of the Parcel (more than 1,000 feet from the OCRM Critical Line) maintains a Density of one Principal Dwelling Unit per 15 acres.

Effective on: 12/6/2022, as amended

Development in the AG-15 District shall comply with all other applicable regulations of this Ordinance, including the standards of CHAPTER 9, Development Standards.

Effective on: 1/1/1901, as amended

The AG-10, Agricultural Preservation Zoning District implements the Agricultural Preservation policies of the Comprehensive Plan.

Effective on: 1/1/1901, as amended

Uses are allowed in the AG-10 District in accordance with the Use Regulations of Chapter 6, Use Regulations.

Effective on: 1/1/1901, as amended

All Development in the AG-10 District shall be subject to the following Density/Intensity and Dimensional Standards:

Effective on: 9/10/2017, as amended

Development in the AG-10 District shall comply with all other applicable regulations of this Ordinance, including the development standards of CHAPTER 9, Development Standards.

Effective on: 1/1/1901, as amended

The AG-8, Rural Agricultural Zoning District implements the Agricultural Preservation and Rural Agriculture policies of the Comprehensive Plan.

Effective on: 1/1/1901, as amended

Uses are allowed in the AG-8 District in accordance with the Use Regulations of CHAPTER 6, Use Regulations.

Effective on: 1/1/1901, as amended

All Development in the AG-8 District shall be subject to the following Density/Intensity and Dimensional Standards:

(Ord. No. 2375, 01/27/2026) 

Effective on: 1/27/2026, as amended

Development in the AG-8 District shall comply with all other applicable regulations of this Ordinance, including the standards of CHAPTER 9, Development Standards.

Effective on: 1/1/1901, as amended

The AGR, Agricultural Residential Zoning District implements the Agricultural Residential policies of the Comprehensive Plan. The district is intended for application in all Settlement Areas.

Effective on: 1/1/1901, as amended

Uses are allowed in the AGR District in accordance with the Use Regulations of CHAPTER 6, Use Regulations.

Effective on: 1/1/1901, as amended

All Development in the AGR District shall be subject to the following Density/Intensity and Dimensional Standards:

Effective on: 9/10/2017, as amended

Development in the AGR District shall comply with all other applicable regulations of this Ordinance, including the standards of CHAPTER 9, Development Standards.

Effective on: 1/1/1901, as amended

Settlement Areas include small older Crossroads communities, Family lands, typical suburban-style Subdivisions, Frontage Lots along local roads, waterfront Developments, and vacant land that has been subdivided for residential Use but not yet built upon. The criteria for additional Parcels to qualify for inclusion into a "Settlement Area" are as follows:

1. Parcel size of 30 acres or less (including highland areas and Freshwater Wetlands) on Parcels existing prior to April 21, 1999; and
2. Parcel must be located in an AG-8, AG-10, or RM Zoning Districts or adjacent to lands currently zoned AGR; and
3. Parcel must be either within 1,000 feet of an existing AGR Zoning District or show the same obvious spatial characteristics of other existing AGR Zoning Districts in the agricultural area; and
4. Parcels are not located on Wadmalaw Island or Edisto Island.

Effective on: 1/1/1901, as amended

The RR, Rural Residential Zoning District implements the Rural Residential policies of the Comprehensive Plan.

Effective on: 1/1/1901, as amended

Uses are allowed in the RR District in accordance with the Use Regulations of CHAPTER 6, Use Regulations.

Effective on: 1/1/1901, as amended

All Development in the RR District shall be subject to the following Density/Intensity and Dimensional Standards:

Effective on: 9/10/2017, as amended

Development in the RR District shall comply with all other applicable regulations of this Ordinance, including the standards of CHAPTER 9, Development Standards.

Effective on: 1/1/1901, as amended

The S-3, Special Management Residential Zoning District implements the Urban/Suburban Cultural Community Protection policies of the Comprehensive Plan.

Effective on: 1/1/1901, as amended

Uses are allowed in the S-3 District in accordance with the Use Regulations of CHAPTER 6, Use Regulations.

Effective on: 1/1/1901, as amended

All Development in the S-3 District shall be subject to the following Density/Intensity and Dimensional Standards:

Effective on: 9/10/2017, as amended

Development in the S-3 District shall comply with all other applicable regulations of this Ordinance, including the standards of CHAPTER 9, Development Standards.

Effective on: 1/1/1901, as amended

The R-4, Low Density Residential Zoning District implements the Urban/Suburban Mixed Use policies of the Comprehensive Plan.

Effective on: 1/1/1901, as amended

Uses are allowed in the R-4 Zoning District in accordance with the Use Regulations of CHAPTER 6, Use Regulations.

Effective on: 1/1/1901, as amended

All development in the R-4 District shall be subject to the following Density/Intensity and Dimensional Standards:

Effective on: 9/10/2017, as amended

Development in the R-4 District shall comply with all other applicable regulations of this Ordinance, including CHAPTER 9, Development Standards. 

Effective on: 1/1/1901, as amended

The MHS, Low-Density Manufactured Home Subdivision district implements the Urban/Suburban Mixed Use policies and the housing policies of the Comprehensive Plan.

Effective on: 1/1/1901, as amended

Uses are allowed in the MHS district in accordance with the Use Regulations of Chapter 6, Use Regulations.

Effective on: 1/1/1901, as amended

Effective on: 1/1/1901, as amended

Development in the MHS District shall comply with all other applicable regulations of this Ordinance, including the standards of CHAPTER 9, Development Standards. For properties abutting an OCRM Critical Line, all applicable Waterfront Development Standards of the R-4 Zoning District shall apply, with the following exception:

1.  Where a current lot of record (existing prior to April 21, 1999) zoned MHS has resulted from the combination of two previously platted and recorded Lots, the current Lot of Record may be subdivided into the configuration of the originally platted Lots as shown on the corresponding approved, recorded Plat of record. The Subdivision resulting in the original configuration of the previously recorded Lots may occur even if the originally platted Lots do not meet the minimum Lot Width requirement of this Section and/or the minimum Lot Area, minimum Lot Width and minimum Lot Width average requirements of Article 4.22, Waterfront Development Standards, provided that the Subdivision meets all other requirements of this Ordinance.

Effective on: 1/1/1901, as amended

The UR, Urban Residential Zoning District implements the Urban/Suburban Mixed Use policies of the Comprehensive Plan.

Effective on: 1/1/1901, as amended

Uses are allowed in the UR District in accordance with the Use Regulations of CHAPTER 6, Use Regulations.

Effective on: 1/1/1901, as amended

All Development in the UR District shall be subject to the following Density/Intensity and Dimensional Standards and shall provide proof to the Zoning and Planning Director that the property will be served by public water and sewer:

Effective on: 9/10/2017, as amended

Development in the UR District shall comply with all other applicable regulations of this Ordinance, including CHAPTER 9, Development Standards.

Effective on: 1/1/1901, as amended

The RO, Residential Office Zoning District implements the Urban/Suburban Mixed Use and Office policies of the Comprehensive Plan.

Effective on: 1/1/1901, as amended

Uses are allowed in the RO District in accordance with the Use Regulations of CHAPTER 6, Use Regulations.

Effective on: 1/1/1901, as amended

All Development in the RO District shall be subject to the following Density/Intensity and Dimensional Standards:

Effective on: 9/10/2017, as amended

Development in the RO District shall comply with all other applicable regulations of this Ordinance, including CHAPTER 9, Development Standards.

Effective on: 1/1/1901, as amended

In addition to all other applicable provisions of this Ordinance, Structures within the RO District shall be subject to the following standards:

1. Architectural Character. Structures in the RO District shall be compatible with the established architectural character of the neighborhood in which they are located by using a design that is complementary in terms of:

1. 1. Consistency of roof lines, roof material,s and roof colors;
   2. Use of similar proportions in Building mass and outdoor spaces;
   3. Similar relationships to the Street;
   4. Similar window and door patterns; and
   5. Similar streetscapes including landscaping, light fixtures, and other site amenities.

2. Building Orientation. Primary Facades and entries shall face the adjacent Street.

3. Building Materials. Building materials shall either be similar to the materials already being used in the neighborhood or, if dissimilar materials are being proposed, other characteristics such as scale and proportions, form architectural detailing, and color and texture shall be utilized to ensure that enough similarity exists for the Building to be compatible despite the differences in materials.
4. Building Colors. Color shades shall be used to facilitate blending into the neighborhood and unifying the Development with its surroundings. The color shades of Building materials shall draw from the range of color shades found in structures in the immediate area.

Effective on: 1/1/1901, as amended

Single-Family Detached Dwellings in the RO District shall be subject to Sec. 6.4.25, Single-Family Detached Dwelling Units, of this Ordinance. .

Effective on: 1/1/1901, as amended

The MHP, Manufactured Housing Park Zoning District implements the Urban/Suburban Mixed Use policies of the Comprehensive Plan. It is primarily intended to accommodate manufactured housing park developments.

Effective on: 1/1/1901, as amended

Uses are allowed in the MHP District in accordance with the Use Regulations of CHAPTER 6, Use Regulations.

Effective on: 1/1/1901, as amended

All Development in the MHP District shall be subject to the following Density/ Intensity and Dimensional Standards:

Effective on: 9/10/2017, as amended

Development in the MHP District shall comply with all other applicable regulations of this Ordinance, including CHAPTER 9, Development Standards.

Effective on: 1/1/1901, as amended

In addition to all other applicable provisions of this ordinance, Manufactured Housing Parks within the MHP District shall be subject to the following standards.

1. A.
   Area per Manufactured Housing Unit Space. The Manufactured Housing Unit space shall be no less than 4,000 square feet and shall require provision of the Required Parking space for the Manufactured Housing Unit. 
2. B.
   Separation of Service Buildings.

   1. 1.
      Every Accessory Structure in a manufactured housing park shall be at least 25 feet from the boundary of any other property in any Residential or Office Zoning District.
   2. 2.
      There shall be a separation of at least 10 feet between each Manufactured Housing Unit and Manufactured Housing Units and other Buildings.
3. C.
   Access Road. Each Manufactured Housing Unit space shall abut an access road that is constructed under the Charleston County Road Construction Standards and is not less than 20 feet wide.
4. D.

   Drainage Plan. A drainage plan shall be approved by the Public Works Department prior to the processing of a Manufactured Housing Park Development.

5. E.
   Temporary, Accessory Manufactured Housing Park. A temporary, accessory Manufactured Housing Park shall be established only in connection with a construction project and shall be discontinued within 60 days after such project is completed. Written approval from the South Carolina Department of Environmental Services (DES) shall be obtained prior to the issuance of a Zoning Permit.

Effective on: 1/1/1901, as amended

The CI, Civic/Institutional Zoning District implements the Civic/Institutional policies of the Comprehensive Plan.

Effective on: 1/1/1901, as amended

Uses are allowed in the CI District in accordance with the Use Regulations of  CHAPTER 6, Use Regulations.

Effective on: 1/1/1901, as amended

All Development in the CI District shall be subject to the following Density/Intensity and Dimensional Standards:

Table 4.17.3 , CI Density/Intensity and Dimensional Standards
	Non-Waterfront Development Standards	Waterfront Development Standards
MINIMUM LOT AREA	6,000 square feet
MINIMUM LOT WIDTH	50 feet
MINIMUM SETBACKS	Minimum Setbacks shall be the vegetated buffers as required in CHAPTER 9, Development Standards, of this Ordinance.
WETLAND, WATERWAY, AND OCRM CRITICAL LINE SETBACK	N/A	50 feet
WETLAND, WATERWAY, AND OCRM CRITICAL LINE BUFFER	N/A	35 feet
MAXIMUM BUILDING COVERAGE	30% of Lot
MAXIMUM HEIGHT	35 feet/2.5 stories, whichever is less

Effective on: 1/1/1901, as amended

Development in the CI District shall comply with all other applicable regulations of this Ordinance, including CHAPTER 9, Development Standards.

Effective on: 1/1/1901, as amended

The GO, General Office Zoning District implements the Urban/Suburban Mixed Use and Office policies of the Comprehensive Plan.

Effective on: 1/1/1901, as amended

Uses are allowed in the GO District in accordance with the Use Regulations of CHAPTER 6, Use Regulations.

Effective on: 1/1/1901, as amended

All Development in the GO District shall be subject to the following Density/Intensity and Dimensional Standards:

Effective on: 9/10/2017, as amended

Development in the GO District shall comply with all other applicable regulations of this Ordinance, including CHAPTER 9, Development Standards.

Effective on: 1/1/1901, as amended

Single-Family Detached Dwellings in the GO District shall be subject to Sec. 6.4.25, Single-Family Detached Dwelling Units, of this Ordinance.

Effective on: 1/1/1901, as amended

The NC, Neighborhood Commercial Zoning District implements the Urban/Suburban Mixed Use and Commercial policies of the Comprehensive Plan.

Effective on: 1/1/1901, as amended

Uses are allowed in the NC District in accordance with the Use Regulations of CHAPTER 6, Use Regulations.

Effective on: 1/1/1901, as amended

All Development in the NC district shall be subject to the following Density/Intensity and Dimensional Standards:

Effective on: 9/10/2017, as amended

Development in the NC District shall comply with all other applicable regulations of this Ordinance, including CHAPTER 9, Development Standards.

Effective on: 1/1/1901, as amended

Single-Family Detached Dwellings in the NC District shall be subject to Sec. 6.4.25, Single-Family Detached Dwelling Units, of this Ordinance.

Effective on: 1/1/1901, as amended

The RC, Rural Commercial Zoning District implements the Rural Commercial policies of the Comprehensive Plan.

Effective on: 1/1/1901, as amended

Uses are allowed in the RC District in accordance with the Use Regulations of CHAPTER 6, Use Regulations.

Effective on: 1/1/1901, as amended

All Development in the RC District shall be subject to the following Density/Intensity and Dimensional Standards:

Effective on: 9/10/2017, as amended

Development in the RC District shall comply with all other applicable regulations of this Ordinance, including CHAPTER 9, Development Standards.

Effective on: 1/1/1901, as amended

Single-Family Detached Dwellings in the RC District shall be subject to Sec. 6.4.25, Single-Family Detached Dwelling Units, of this Ordinance.

Effective on: 1/1/1901, as amended

The CC, Community Commercial Zoning District implements the Commercial policies of the Comprehensive Plan.

Effective on: 1/1/1901, as amended

Uses are allowed in the CC District in accordance with the Use Regulations of CHAPTER 6, Use Regulations.

Effective on: 1/1/1901, as amended

All Development in the CC District shall be subject to the following Density/Intensity and Dimensional Standards:

Effective on: 9/10/2017, as amended

Development in the CC District shall comply with all other applicable regulations of this Ordinance, including CHAPTER 9, Development Standards.

Effective on: 1/1/1901, as amended

A. Single-Family Detached Dwellings in the CC Zoning District shall be subject to Sec. 6.4.25, Single-Family Detached Dwelling Units, of this Ordinance .

B. Multi-Family Dwellings, Single-Family Attached Dwellings, Duplexes, Triplexes, and Fourplexes in the CC Zoning District shall comply with the Density/Intensity and Dimensional Standards of the UR Zoning District.

Effective on: 12/6/2022, as amended

The RI, Rural Industrial Zoning District, implements the Rural Industrial and Rural Economic Development Area policies of the Comprehensive Plan.

Effective on: 1/1/1901, as amended

Uses are allowed in the RI District in accordance with the Use Regulations of CHAPTER 6, Use Regulations.

Effective on: 1/1/1901, as amended

All Development in the RI District shall be subject to the following Density/Intensity and Dimensional Standards:

Effective on: 1/1/1901, as amended

Development in the RI District shall comply with all other applicable regulations of this Ordinance, including CHAPTER 9, Development Standards.

Effective on: 1/1/1901, as amended

Single-Family Detached Dwellings in the RI District shall be subject to Sec. 6.4.25, Single-Family Detached Dwelling Units, of this Ordinance.

Effective on: 1/1/1901, as amended

The IN, Industrial Zoning District implements the Industrial policies of the Comprehensive Plan.

Effective on: 1/1/1901, as amended

Uses are allowed in the IN District in accordance with the Use Regulations of CHAPTER 6, Use Regulations.

Effective on: 1/1/1901, as amended

All Development in the IN District shall be subject to the following Density/Intensity and Dimensional Standards:

Effective on: 9/10/2017, as amended

Development in the IN District shall comply with all other applicable regulations of this Ordinance, including CHAPTER 9, Development Standards.

Effective on: 1/1/1901, as amended

A. Single-Family Detached Dwellings in the IN Zoning District shall be subject to Sec. 6.4.25, Single-Family Detached Dwelling Units, of this Ordinance.

B. Multi-Family Dwellings, Single-Family Attached Dwellings, Duplexes, Triplexes, and Fourplexes in the IN Zoning District shall comply with the Density/Intensity and Dimensional Standards of the UR Zoning District.

Effective on: 12/6/2022, as amended

The minimum Lot Width (ft) is measured and maintained from the Front Lot Line through the entire depth of the parcel to the OCRM Critical Line.  All Lots within a Subdivision must meet the minimum Lot Width average. (Exception: Flag Lots and Lots served by Cul-de-Sacs). Lots fronting on cul-de-sacs shall meet the minimum Lot Width at the required minimum Front Setback. Flag Lots are designed with a “flag pole” area with a minimum width of 20’. The flag pole area is not required to meet the minimum Lot Width nor does this area count towards the minimum Lot size or area. Flag lots must meet the minimum Lot Width at the end of the flag pole area/base of Lot. All Lots within a Subdivision must meet the required minimum Lot Width average for the applicable Zoning District.

Reductions from minimum Lot Width average requirements for Parcels which contain or abut an OCRM Critical Line may be permitted if the Zoning and Planning Director determines that one of the following criteria has been met:

1. A.
   No more than three waterfront Lots are being created from the original Parcel and that a reduction of no more than 10 percent of Lot Width average is required for any resulting Lot; or
2. B.
   Where two Lots of record (Lots existing prior to April 21, 1999) have been combined, the resulting Lot may be subdivided into the original configuration shown on the previously approved, recorded plat of record, even if the original Lots do not meet the minimum Lot Width requirement of this Section, provided that the Subdivision meets all other requirements of this Ordinance.

Effective on: 12/6/2022, as amended

In order to establish an Accessory Dwelling Unit on a parcel that contains or abuts an OCRM Critical Line the following standards shall apply:

1. A.
   When an Accessory Dwelling Unit is to be located in front of the Principal Dwelling Unit (between the street and the front of Principal Dwelling Unit) the minimum Lot Area shall be 50% larger than the minimum Lot Area requirement for waterfront Lots of the base Zoning District. A variance shall not be required to place the Accessory Dwelling Unit in front of the Principal Dwelling Unit.
2. B.
   When the Accessory Dwelling Unit is to be located to the side or rear of the Principal Dwelling Unit (between the OCRM critical line and the Principal Dwelling Unit) the minimum Lot Width shall be two times the minimum Lot Width required for waterfront Lots in the applicable base Zoning District.
3. C.
   The Accessory Dwelling Unit shall meet the minimum Setbacks of the Zoning District where it will be located. The distance between the Accessory Dwelling Unit and the Principal Dwelling Unit shall not be less than the sum of the minimum setbacks as required for the Zoning District, as follows:
   
   1. If the Accessory Dwelling Unit is located in front of the Principal Dwelling Unit (between the Street and the front of the Principal Dwelling Unit), the sum of the two side setbacks shall be applied;
   
   2. If the Accessory Dwelling Unit is to be placed to the side of the Principal Dwelling Unit, the sum of the two side setbacks shall be applied; and
   
   3. If the Accessory Dwelling Unit is to the rear of the Principal Dwelling Unit, the sum of the front and rear setbacks shall be applied.
4. D.
   The Zoning Lot and Accessory Dwelling Unit shall comply with all other requirements of this Ordinance, including but not limited to the requirements of Sec. 6.5.9, Accessory Dwelling Units. In case of conflict, the requirements of this section shall apply.

(Ord. No. 2375, 01/27/2026)

Effective on: 1/27/2026, as amended

The number of Dwelling Units shall not exceed the maximum number permitted by the Density/Intensity and Dimensional Standards of the base Zoning District. In addition, the Dwelling Groups shall comply with the requirements of Article 4.24, Waterfront Development Standards, of this Ordinance, and shall comply with  the minimum Lot Area and Lot Width requirements of waterfront Lots in the applicable Zoning District.

Effective on: 1/1/1901, as amended

1. A.
   The Zoning and Planning Director shall be authorized to reduce OCRM Critical Line Setbacks to a distance not less than the buffer depth, when deemed necessary by the Director to accommodate reasonable Development of the Parcel when it is determined by the Director that the Setback reduction will not have a significant adverse impact on public health or safety.
2. B.
   The Zoning and Planning Director shall be authorized to modify the OCRM Critical Line Setbacks and buffers when DES-BCM has granted approval to modify or alter BCM jurisdictional wetlands within public or private Rights-of-Way and drainage easements.
3. C.
   The Zoning and Planning Director shall be authorized to waive or modify the existing OCRM Critical Line Setback and Buffer requirements when there is an alteration that results in an overall expansion of the OCRM Critical Line into existing highland and freshwater wetland areas for the creation of a Mitigation Bank and the following conditions are met:

   1. 1.
      DES-BCM, U.S. Army Corps of Engineers and any other state or federal agency having jurisdiction has granted approval to alter the jurisdictional wetlands; and
   2. 2.
      The OCRM Critical Line Setback and Buffer of the relocated OCRM Critical Line shall at minimum be that of the corresponding zoning district; and 
   3. 3.
      An OCRM Critical Line Buffer planting plan is submitted for review and approval by the Zoning and Planning Director and planted within one year of the completion of the alteration.

Effective on: 11/16/2022, as amended

When the application of buffer/Setback requirements contained within this Ordinance render a parcel that existed prior to April 21, 1999, unbuildable, the Zoning and Planning Director shall be authorized to reduce front, side, and rear yard buffers/Setbacks as necessary to make a Parcel buildable. The Zoning and Planning Director cannot reduce any front and/or rear yard buffer in an amount which would result in the placement of a Structure closer to either the front or rear property line than any Structure on an adjacent property. Any further reduction in any required buffer shall be made by appeal to the Board of Zoning Appeals.

Effective on: 1/1/1901, as amended

Required OCRM Critical Line buffers and setbacks shall be measured from the OCRM Critical Line, whether the Critical Line or wetland/waterway is located on, adjacent to, or near the subject Parcel.

Effective on: 1/1/1901, as amended

The following activities are specifically prohibited in a buffer area:

1. A.
   Removal, excavation, or disturbance of the soil, except for minimal disturbance associated with the planting of shrubs or trees for landscaping;
2. B.
   Grassed lawns requiring regular maintenance such as herbicides, pesticides, fertilizers, and frequent mowing;
3. C.
   Gardens, fences, or Structures, except for permitted crossings;
4. D.
   Paved or other impervious surfaces;
5. E.
   Destruction or addition of plant life that would alter the existing pattern of vegetation; and
6. F.
   Driveways of any surface type.

Effective on: 12/6/2022, as amended

When the Buffer has been disturbed or destroyed, the Buffer shall be replaced utilizing native species plant material suitable for saltwater tolerance and in compliance with the Buffer Depth and Landscaping Standards of Table 9.4.4-3 and Landscape Material Standards of Sec. 9.4.6.  A landscape plan shall be submitted to the Zoning and Planning Director for review and approval prior installation.

Effective on: 12/6/2022, as amended

The South Carolina Local Government Comprehensive Planning Enabling Act of 1994, as amended (Planning Act) authorizes local governments to utilize zoning and planning techniques (not limited to those found in the Planning Act) for implementation of the goals specified in S.C. Code Ann. Sec. 6-29-720 (2007). Charleston County Council hereby establishes a zoning and planning technique called a “Planned Development” Zoning District. The “Planned Development” Zoning District incorporates provisions of the planning technique called “Planned Development District” referred to in the Planning Act and identified in this ordinance and the additional provisions found in this Article that expands, varies and/or differs from the provisions found in the references to Planned Development districts in the Planning Act. A “Planned Development,” as applied herein, is a type of Zoning District (PD) and a type of Development plan. PD Zoning Districts are inextricably linked to Planned Development plans, in that no rights of development apply to a PD zoning designation other than those of the approved Planned Development plan.

Planned Development provisions are intended to encourage innovative site planning for residential, commercial, institutional, and/or industrial Developments within Planned Developments. Planned Developments may provide for variations from other ordinances and the regulations of other established Zoning Districts concerning use, Setbacks, Lot size, Density, bulk, and other requirements to accommodate flexibility in the arrangement of uses for the general purpose of promoting and protecting the public health, safety, and general welfare. A Planned Development as used in this ordinance is intended to apply the flexibility and variation provisions of the Planning Act provided in the Planned Development Zoning District provision, along with the additional regulatory and procedural provisions of this Article.

Effective on: 1/1/1901, as amended

The purpose of the Planned Development Zoning District is to allow flexible development standards that implement the Comprehensive Plan strategies.

Effective on: 1/1/1901, as amended

The PD, Planned Development, Zoning District regulations of this Article are intended to encourage achievement of the goals of the Charleston County Comprehensive Plan and to allow flexibility in Development of property that proposes a single or multiple use(s) that will result in improved design, character, and quality of new or redesigned Developments and preserve natural and scenic features of Open Spaces.

Effective on: 1/1/1901, as amended

There is  no minimum site area requirement to qualify for a Planned Development as long as the Planned Development meets all requirements of Article 4.25, Planned Development Zoning District (PD), of this Ordinance.

Planned Development (PD) applications are comprised of PD Guidelines and Sketch Plans, collectively referred to as the PD Development Plan. Approval of the PD Development Plan creates a new Planned Development Zoning District (Planned Development).

Effective on: 1/1/1901, as amended

The Development standards listed in this Section, those in the approved PD Guidelines, and any in the approved PD Sketch Plan(s) apply.

1. A.
   Maximum Density. 

   1. 1.
      The maximum allowed Density in a Planned Development Zoning District may not exceed the maximum Density as stated in Tables 3.1.1 and of the Charleston County Comprehensive Plan, as amended, except as provided in CHAPTER 3.1.7 of the Charleston County Comprehensive Plan, as amended, and this Article.
   2. 2.
      Density and Lot Area calculations shall comply with the requirements contained in Article 4.2, Measurements, Computations, and Exceptions. 
   3. 3.
      In order to achieve the maximum density recommendation for the Rural Residential Future Land Use category as stated in Table 3.1.1 of the Charleston County Comprehensive Plan, as amended, through a Planned Development Zoning District, a minimum of 50 percent of the total acreage of the project must be dedicated as Conservation Area pursuant to the requirements of Sec. 8.14.8, Conservation Area Standards, of this Ordinance, in addition to the requirements of Sec. 4.25.6, Common Open Space, of this Ordinance. Where in conflict, the requirements of Sec. 8.14.8 shall control;
   4. 4.
      If the parcel is located in the Urban/Suburban Area, the following standards shall apply:

      1. a.
         Where the Zoning District is Low Density Residential (R-4) and all requirements of this Ordinance are met, a maximum density of eight Principal Dwelling Units per acre may be permitted when 0.05 acres of common Open Space per dwelling unit plus ten percent of the land area designated for office, commercial, and/or industrial uses is provided; and
      2. b.
         Where the Zoning District is UR, Urban Residential and all requirements of this Ordinance are met, a maximum Density of not more than 24 Principal Dwelling Units per acre may be permitted when 0.05 acres of common Open Space per Principal Dwelling Unit plus ten percent of the land area designated for office, commercial, and/or industrial uses is provided. 
   5. 5.
      Planned Developments that include a Parcel or Parcels of land that have varying future land use designations and/or varying zoning classifications categories may be deemed consistent with the Comprehensive Plan if the total density proposed does not exceed the maximum combined density permitted in the future land use designations  pursuant to the Comprehensive Plan and/or Zoning Districts pursuant to this Ordinance.
2. B.

   Development standards pertaining to Density, Lot size, location, and arrangement of Buildings and Structures, Lot dimensions, and landscaping shall be defined in the PD Development Plan. The Development standards of the Zoning District in which the Subject Property(ies) was located at the time of submission of the application to rezone to the PD Zoning District may be altered, pursuant to this Article, only if County Council determines that the Development will serve an overriding public interest and/or public safety concern. Applicants shall not propose alteration of the following standards:

   1. 1.

      Chapters 1, 2, 3, 10, 11, 12, and APPENDIX A of this Ordinance;

   2. 2.

      Waterfront Development Standards of the Zoning District in which the subject property(ies) was located at the time of submission, as set forth in Article 4.24;

   3. 3.

      Architectural Design Guidelines of Article 9.5, Landscaping, Screening, and Buffers, except where the Zoning and Planning Director determines that the proposed architectural design of the development is compatible with the architectural design of development on adjacent properties;

   4. 4.

      Sign Regulations of Article 9.9, Signs, provided, however, that the minimum distance from a Billboard/Digital or Electronic Billboard proposed as part of a  Planned Development to the nearest On-Premises Sign(s) may be less restrictive than the standards set forth in this Ordinance;

   5. 5.

      The Dimensional Standards for the S-3 Zoning District, as stated in CHAPTER 4, Base Zoning Districts; and

   6. 6.

      Parking standards of ARTICLE 9.2, Off-Street Parking and Loading, except where the Zoning and Planning Director determines that the amount of parking requested and its location is sufficient, based on a generally-accepted planning source or authority, for the use proposed; and

   7. 7.
      Maximum Impervious Surface Coverage of the Zoning District in which the subject property(ies) was located at the time of submission of the application to rezone to the PD Zoning District, unless the Applicant provides documentation showing how the proposed increase in Impervious Surface Coverage beyond the maximum allowed will be mitigated and documentation that the proposed mitigation has been approved by the Stormwater Division of the Charleston County Public Works Department. Mitigation may include, but shall not be limited to, green infrastructure and low impact design techniques. In no case shall the maximum Impervious Surface Coverage be increased beyond 70 percent of the Lot. 
3. C.

   There shall be a minimum Type A, 10- foot vegetated buffer, around the perimeter of the property, which may be located on private Lots. In cases of conflict between the perimeter buffer requirement and other buffer and/or Setback requirements stated in this Ordinance or the Planned Development Guidelines, the more restrictive will apply.

4. D.

   Lots to Abut Upon Common Open Space. Residential Parcels shall maximize orientation towards common Open Space or similar areas.

5. E.
   Access

   1. 1.
      Streets within Planned Developments shall connect to adjoining neighborhoods/Developments. In cases where adjoining properties are not developed, Planned Developments shall include stub outs for connections to future development on adjacent parcels. Cul-de-sacs, T-turnarounds, and dead-end streets shall only be allowed at the discretion of the Zoning and Planning Director.
   2. 2.
      Areas between Structures shall be covered by Easements where necessary for access and to provide for maintenance and utility service.
   3. 3.
      Primary vehicular access to office, commercial, or industrial development shall be through limited access roads.
   4. 4.
      Sidewalks and/or multi-use paths shall be provided, as required by this Ordinance.
6. F.
   Commercial Areas

   1. 1.
      Commercial areas and adjacent residential, office, and industrial areas shall be directly connected through paved sidewalks, trails, or other pedestrian Infrastructure.
   2. 2.
      Commercial areas shall be planned as groups having common parking areas and common ingress and egress points.
7. G.
   Industrial Areas. A minimum 40-foot Type D vegetated buffer shall be required where industrial uses abut residential uses within the development.
8. H.
   Areas Designated for Future Use. A statement specifying that all areas designated for future expansion or not intended for immediate improvement or Development shall remain in a natural state until such time as Development permits are approved must be included in the PD Guidelines.
9. I.
   Resource Areas.

   1. 1.
      Planned Developments shall protect any resources determined significant by the Zoning and Planning Director including, but not limited to: agricultural soils and active farmland, buffer areas between active farmland and existing/planned future non-farm Development, wetlands, mature trees, land adjacent to preserved farmland on neighboring properties, scenic views, Water access and shoreline buffers, and habitat of species designated as of federal, state and local concern.
   2. 2.
      Planned Developments shall comply with all provisions of Article 9.4, Tree Protection and Preservation, of this Ordinance.

(Ord. No. 2317, 10/29/2024) 

Effective on: 10/29/2024, as amended

1. Purpose.
   1. The purpose of Common Open Space is to permit areas that could otherwise be developed into buildable Lots or otherwise sold individually to provide a significant amenity to the residents who will interact with the Open Space on a daily basis.
   2. It is not the purpose of Common Open Space to permit Open Space for land that is otherwise unusable on a daily basis by residents.
2. Where Common Open Space is designated, the following standards shall apply:
   1. Common Open Space  areas shall be:
      1. Located so as to preserve any significant resources,
      2. Appropriate to the size of the development, and
      3. Usable by the new residents of the Planned Development.
   2.  Common Open Space  may include, but is not limited to:
      1. Unimproved land,
      2. Landscaped areas,
      3. Improved recreation areas,
      4. Recreational Buildings and Structures that are totally accessory to recreational uses, and
      5. Freshwater Wetland areas, and water surfaces, all located within the Development. Natural landscapes, such as wetlands, may also be considered as Open Space if preserved and meet the requirements of this Section. “Usable” means that the Open Space includes uses or facilities that are adaptable to recreational or leisure use and are accessible to the residents of the proposed Development or the general public, such as seating areas, picnic shelter, Community Garden, pedestrian and Bicycle Trail access to a designated greenway, public square, Swimming Pools, playing fields, or a new playground. The use or facility must be approved by County Council in accordance with the approval and conveyance procedures below. 
      6.  The total combined acreage of Freshwater Wetlands, detention ponds, and buffers to be used as Open Space shall not comprise more than 30% of the open space requirement as stated in this Section.
   3. Common Open Space shall not include:
      1.  Streets;
      2.  Drives;
      3. Parking areas; or
      4. Structures, other than recreational Structures.
   4. All Property Owners in the Planned Development shall have access to the open space by means of a public or private Street or a walkway in an Easement with a minimum width of 20 feet.
   5. Common Open Space shall be provided within each phase of the Planned Development in sufficient amounts to serve the expected population of that phase.
3.  The approval and conveyance procedures listed below apply to Common Open Space:
   1. The Common Open Space area shall be detailed on each PD Sketch Plan and recorded with the final Plat (as approved under Article 8.5, Final Plat, of this Ordinance)​​​​​​.
   2. The Common Open Space shall be conveyed prior to recording the final Plat, in accordance with one of the methods listed below. The applicant must have proof of commitment from the entity that will be responsible for the Common Open Space prior to the Planning Commission Meeting for which the case is scheduled.
      1. By Dedication to the County as publicly-owned Open Space. Parks, Open Space, and recreation facilities proposed for Dedication to the County must be acceptable to the Parks and Recreation Commission, Planning Commission, County Council, and other governmental entities with regard to the size, shape, location, improvement, environmental condition (i.e., the applicant may be required to provide an environmental assessment), and budgetary and maintenance terms; or
      2. By leasing, conveying, or retaining title (including beneficial ownership) to a corporation, homeowner’s association or other legal entity. The terms of such lease or other instrument of conveyance must restrict the use of the area to Open Space/recreational uses.

Effective on: 1/1/1901, as amended

Pursuant to Section 3.1.7, Future Land Use Recommendations, of the Charleston County Comprehensive Plan, as amended, County Council may approve Planned Developments with Density bonuses above the maximum allowable Densities provided for in CHAPTER 4, Base Zoning Districts, of this Ordinance for Developments that are located in the Urban/Suburban Area, as defined by Map 3.1.2, Growth Management Areas, of the Charleston County Comprehensive Plan, as amended, and in which at least 30 percent of the total number of Dwelling Units qualify as Affordable and/or Workforce Dwelling Units, as defined in this Ordinance.

Applicants wishing to utilize such Density bonuses shall submit a Planned Development Zoning District application that complies with the requirements of this Article, in addition to the requirements of Sec. 6.4.19 of this Ordinance, with the exception of the minimum percentages of Affordable and Workforce Dwelling Units required and maximum Densities contained in Table 6.4.19.D.2, Density, Intensity, and Dimensional Standards: Urban/Suburban Area, of Sec. 6.4.19.

Effective on: 1/1/1901, as amended

The procedure and criteria for PD applications are outlined below. All Sketch Plan(s) shall be drawn to scale.

1. A.
   Pre-Application Conference. Before submitting a PD Development Plan, the applicant shall confer with the Zoning and Planning Director and any other officials designated by the Zoning and Planning Director. The purpose of this pre-application conference is to discuss the proposal and the applicable Development review and approval procedures.
2. B.
   Conceptual PD Development Plan Presentation

   1. 1.
      At least one time prior to submitting a formal application, Planned Development applicants shall present their Conceptual PD Development Plan to the Charleston County Planning Commission at a Planning Commission workshop. This presentation shall be for discussion and feedback purposes only and no action shall be taken on the Conceptual PD Development Plan at the workshop. At least 20 days prior to the Planning Commission workshop, the applicant shall submit a memo and presentation describing the proposed PD Development Plan.
   2. 2.
      This requirement applies to all Planned Developments.
   3. 3.
      The Planning Commission or Zoning and Planning Director may require applicants for Planned Developments that do not meet the thresholds in sub-section 2, above, to present the proposed Development at a Planning Commission workshop prior to submitting a formal application.
3. C.
   Community Workshop

   1. 1.
       After the pre-application conference, it is recommended that the applicant hold one or more community workshops.
   2. 2.
      The purpose of a community workshop is to:

      1. a.
          Ensure early citizen participation in an informal forum, in conjunction with the development applications; and
      2. b.
          Provide an applicant the opportunity to understand and try to mitigate any impacts an application may have on an affected community.
   3. 3.
      A community workshop is not intended to produce complete consensus on all applications, but to encourage applicants to be good neighbors.
   4. 4.
      It shall be the responsibility of the applicant to provide Neighbor and Parties in Interest Notice of the community workshop in accordance with Sec. 3.1.6 of this Ordinance.
4. D.
   Draft PD Development Plan Submittal

   1. 1.
      After the required pre-application conference, and prior to submitting a formal application, the applicant shall submit one digital version of a draft of the requested PD Development Plan for staff review. Staff will not review the proposed PD Development Plan until all required information has been submitted.
   2. 2.
      The draft PD Development Plan must comply with all requirements of this Ordinance and all other applicable regulations.
   3. 3.
      Additionally, the Article 4.25, PD Checklist, available in the Zoning and Planning Department, must be filled out and submitted  with the draft PD Development Plan, indicating the page number and section of the PD for each of the required information.
5. E.
    PD Development Plan Application. Complete Applications for Planned Developments may be submitted on forms available in the Zoning and Planning Department once the Zoning and Planning Director has determined that the requested PD Development Plan complies with the requirements of this Ordinance and all other applicable regulations.

   1. 1.
      No application for a PD Development Plan shall be accepted as complete unless it includes one required paper copy and one Digital copy of the PD Development Plan, the required fee, and the following information:

      1. a.
         One completed Zoning Map Amendment application signed by the current Property Owner(s), and for property(ies) owned by corporations or partnerships, a resolution of the corporation or partnership authorizing and granting the applicant signing and authority to act and conduct business on behalf of and bind the corporation or partnership must be submitted;
      2. b.
         One copy of a legible Approved and Recorded Plat showing the current property lines of the property(ies) to be included in the Planned Development;
      3. c.
         One copy of the current, recorded deed;
      4. d.
         One Restrictive Covenants Affidavit(s) signed by the Applicant or current Property Owner(s) in compliance with state law;
      5. e.
         One copy of the completed Article 4.25,  PD Checklist;
      6. f.
         Documentation of any community workshops held and outreach made regarding the proposed PD Development Plan application;
      7. g.
         A digital version of all text, charts, tables, exhibits and graphics used in the PD;
      8. h.
         A current aerial overlaid with the proposed Sketch Plan; and
      9. i.
         Any other information that the Planning Commission determines is reasonably necessary to make an informed decision as to whether the application complies with the standards of this Article.
   2. 2.
      Applications for PD Development Plans shall comply with Sec. 3.1.4, Application Completeness and Submission Deadlines, of this Ordinance.
   3. 3.
      County Council may waive the fees at its  discretion.
6. F.
   Public Hearing Notice. Newspaper, Neighbor, Parties in Interest, and Posted notice of the County Council’s public hearing shall be provided in accordance with the requirements of Sec. 3.1.6 of this Ordinance.
7. G.
   Zoning and Planning Director Review and Report.

   1. 1.
      Once an application is deemed complete and to contain all information required herein by the Zoning and Planning Director, the application will be scheduled for a Planning Commission meeting and the Applicant and other interested parties will be notified in accordance with this Ordinance.
   2. 2.
      The Zoning and Planning Director shall prepare a staff report that reviews the PD Development Plan application.
8. H.
   The Planning Commission shall:

   1. 1.
      Review the proposed PD Development Plan and adopt a resolution, by majority vote of the entire membership, recommending that the County Council approve, approve with conditions, or deny the proposed Development plan;
   2. 2.
       Base its  recommendation on the Approval Criteria set forth in  Sec. 4.25.8(J); and 
   3. 3.
       Submit its recommendation to the County Council within 30 calendar days of the Planning Commission meeting at which the PD Development Plan was introduced. Deferrals approved by the Planning Commission, whether requested by the Planning Commission or the Property Owner, and delays in action due to an official declaration of a state of emergency, shall not be subject to this requirement.
9. I.
   County Council Hearing and Decision.

   1. 1.
      After receiving the recommendation of the Planning Commission, the County Council shall:

      1. a.
         Hold a Public Hearing prior to giving second reading to the Planned Development/zoning map amendment application; and
      2. b.
          Take action to approve, approve with conditions, or deny the proposed PD Development Plan based on the Approval Criteria set forth in  Sec. 4.25.8(J).
   2. 2.
      If the County Council takes action to approve the PD Development Plan, it may require time-frames for Development of the entire Planned Development and its individual phases, if any.
   3. 3.
      The approval of a Planned Development shall deem it to be a new Zoning District with its own zoning designation.
   4. 4.
      Within 10 working days of approval by County Council of a Planned Development Zoning District , the Applicant shall submit each of the following to the Zoning and Planning Department:

      1. a.
         One digital copy of the approved Planned Development Guidelines and Sketch Plan, clearly showing  all changes and conditions approved by Council as redlines for staff review; and.
      2. b.
         One digital ​​​​​copy of the approved Planned Development Guidelines and Sketch Plan, incorporating all changes and conditions approved by Council.
10. J.
    Approval Criteria. Applications for Planned Developments  may be approved only if the County Council determines that the following criteria are met:

    1. 1.
       The PD Development Plan complies with the standards contained in this Article;
    2. 2.
       The Development is consistent with the intent of the Comprehensive Plan and other adopted policy documents; and
    3. 3.
       The County and other agencies will be able to provide necessary public services, facilities, and programs to serve the Development proposed, at the time the property is developed.
       
       (Ord. No. 2375, 01/27/2026)

Effective on: 1/27/2026, as amended

1. The following shall be included in the proposed  PD Guidelines:
   1. The name of the Planned Development, not duplicating the name of any other Planned Development or Subdivision, the Final Plat of which has been recorded in Charleston County, South Carolina;
   2. A statement of objectives of the proposed Development;
   3. The total acreage of the Planned Development, broken down into total acreage, total Highland acreage, total Freshwater Wetland acreage, and total Critical Line wetland, or marsh acreage;
   4. A table of proposed land uses including:
      1. A table of proposed maximum and average residential Densities for each residential use (The applicant shall refer to the Density ranges listed in the Charleston County Comprehensive Plan for residential densities);
      2. The maximum total acreage of each residential use;
      3. The maximum allowable number of each type of residential Dwelling Unit requested (Single-Family Detached, Single-Family Attached, etc.); and;
      4. Planned Developments that request increased Density for the inclusion of Affordable and Workforce Dwelling Units shall include the Affordable/Workforce Dwelling Unit Plan that complies with the requirements of Sec. 6.4.19.G.3 of this Ordinance.
   5. A statement that the requirements of the Zoning District in which the property is located prior to rezoning will apply, if the property is not developed in accordance with the approved PD Development Plan;
   6. The maximum proposed Floor Area ratios (% of lot in relation to building floor area), maximum number of Buildings, maximum size of each Building, and maximum Building Coverage for each non-residential use;
   7. All dimensional and lot standards proposed, for each land use type designated including Building/Impervious Surface Coverage, as applicable;
   8. For Planned Developments that are requesting Density bonuses pursuant to Sec. 4.25.7, Affordable and Workforce Dwelling Units, all information required by Sec. 6.4.19 of this Ordinance shall be submitted as part of the PD Development Plan;
   9. An analysis of the impact of the proposed Development on existing public facilities and services (e.g. roads and Streets, Water, Sewer, stormwater, etc.). Any proposed future improvements to these facilities and services to be made as part of the Planned Development shall also be included;
   10. A traffic study as required by Article 9.6, Traffic Impact Studies, of this Ordinance. On-site improvements recommended by the traffic study shall be included in the PD Development Plan; 
   11. A Development schedule with a generalized phasing schedule, if appropriate. The phasing schedule shall include the number of Dwelling Units, total acreage of each residential use, total gross Floor Area of each non-residential use, and percentage and acreage of Common Open Space to be included in each phase;
   12. A statement indicating how any Common Open Space/recreation areas will be owned or managed;
   13. A statement indicating how all roads and Alleys will be owned and maintained;
   14. A narrative statement defining proposed Stormwater system design approach and system integration within proposed plan. Statement should include conceptual stormwater system design configuration including:  site specific natural and man-made features (e.g. wetland, ditches, canals, rivers, Water bodies) incorporated within the Stormwater management system; system components; component purpose/function; stormwater system ownership; party(ies) responsible for maintenance. A compliance statement is required referencing applicable South Carolina Department of Health and Environmental Control (SCDHEC) and Charleston County Stormwater Program criteria;
   15. A statement of inclusion and compliance with processes included in the Charleston County Zoning and Land Development Regulations that are not mentioned in the Planned Development Guidelines;
   16. A statement of agreement to proceed with proposed Development in accordance with the provisions of these zoning regulations, applicable provisions of the Charleston County Comprehensive Plan, and with such conditions as may be attached to any rezoning to the applicable PD district;
   17. A statement that proposed modifications to the approved PD Development Plan shall be processed in accordance with Section 4.25.10;
   18. A description of how the proposed development complies with the approval criteria contained in Sec. 4.25.8(J), in a list format, addressing each criterion separately;
   19. A historic and archeological survey identifying all historic and cultural sites, structures and landscapes on the subject property, consistent with Article 9.7, Historic Preservation, of this Ordinance. If there are no resources, a map from SCDAH indicating such must be included. Any required on-site mitigation must be detailed in the Planned Development Guidelines and proof of coordination with OCRM and/or the South Carolina State Historic Preservation Office must be included;
   20. Letters of coordination from all agencies from which the Applicant must:
       1. Obtain permits; or
       2. Obtain services and/or facilities; and
       3. Any other information that the Zoning and Planning Director determines is necessary to determine whether or not an application complies with the standards established in this Article.
2. The following shall be included on the proposed Sketch Plan. Multiple Sketch Plans may be submitted. Sketch Plans shall be drawn to scale.
   1. The general location and amount of land proposed for each land use including single family residential, multi-family residential, institutional, office, commercial, industrial, common Open Space/recreation, Street use, etc.;
   2. Conceptual Lot Lines;
   3. Pedestrian and motor traffic circulation;
   4. Location, acreage, and type (freshwater or Critical Line/marsh) of all wetlands as they exist prior to Development. The location and acreage of all Freshwater Wetlands to be developed upon shall be indicated;
   5. A tree survey to include all Grand Trees (24 inches or greater) on residential Lots of one acre or less and in road Rights-of-Way and Easements. Tree surveys for non-residential uses shall conform with the standards of Sec. 9.2.3 of this Ordinance;
   6. Architectural elevations for each type of residential and nonresidential unit;
   7. The general location, size, and capacity of all existing and proposed Water and Sewer lines;
   8. Areas to be included in each phase of Development, including the location of all common Open Space areas and/or Affordable/Workforce Dwelling Units to be included in each phase;
   9. The location of all construction entrances;
   10. A Landscaping Sketch Plan including the location and composition of all screening and buffering materials;
   11. Stormwater Sketch Plan to provide graphic representation of existing and proposed stormwater system components, as defined within Planned Development Guidelines Stormwater narrative;
   12. A Utility Sketch Plan with the location of any on-site natural areas, buffers, Trees, and sidewalks that may be impacted by Utility facilities including existing and proposed location of any Easements or Rights-of-Way; and
   13. Any other information that the Zoning and Planning Director determines is necessary to determine whether the application complies with the standards established in this Article.

Effective on: 1/1/1901, as amended

The Zoning and Planning Director shall determine whether a proposed modification affecting one or more Parcels in a previously approved PD Development Plan is considered a minor or major modification, or requires a Variance, pursuant to the criteria in this section. Modifications of approved PD Development Plans are categorized as major or minor depending on the type and extent of proposed changes, as described below:

1. Minor Modifications.
   1. Increase in Common Open Space area;
   2. Decrease in residential Density or number of Dwelling Units;
   3. Increase in Setbacks;
   4. Increase in the area, dimensions, and/or Density of Landscape Buffers;
   5. Decrease in Building Floor Area;
   6. Decrease in the number or size of Signs;
   7. Minor shifts in the layout of the land uses in the Sketch Plan; and
   8. Minor shifts in the location of access points or internal Roadways necessary to resolve regulatory (e.g., SCDOT) permitting issues.

The Zoning and Planning Director is authorized to approve minor modifications to an approved PD Development Plan.

2. Major Modifications.
   1. Any modification not considered “minor” pursuant to paragraph A, above, is considered a major modification.
   2. Major modifications require an amendment to the PD Development Plan, in accordance with the procedure specified in this Article.
   3. Any PD Amendment must comply with all requirements of this Article.
3. Variances.
   1. Upon adoption of this Ordinance, the provisions of Article 3.10 of the ZLDR, relating to Variances, shall apply to all approved PD Development Plans with respect to zoning-related dimensional, design, or performance standards on individual Lots. Variance applications for Trees, Setbacks, Buffers, height, and maximum Impervious Surface/Building Coverage on individual Lots shall be processed pursuant to Article 3.10, Zoning Variances, of this Ordinance and all requirements of Art. 3.10, Zoning Variances, shall apply. All other proposed modifications, except minor modifications as described above, require an amendment to the PD Development Plan, in accordance with the procedure specified in this Article.
   2. The Director’s determination does not bind the Board of Zoning Appeals to a particular decision.

Effective on: 1/1/1901, as amended

Approved PDs shall be indicated on the official Zoning Map.

Effective on: 1/1/1901, as amended

1. Unless expressly stated in this Section or approved at the time of a PD Development Plan approval, all applicable standards of this Ordinance and other law shall apply to Development within a Planned Development Zoning District.
2. As described in this Article, Planned Development Zoning Districts may provide for variations from this Ordinance or other ordinances and the regulations of established Zoning Districts concerning use, Setbacks, Lot Area, Density, bulk and other requirements to accommodate flexibility in the arrangement of uses for the general purpose of promoting and protecting the public health, safety, and general welfare.
3. All Development, other than Single-Family Detached Dwelling Units, shall comply with Article 3.7,  Site Plan Review.

Effective on: 1/1/1901, as amended