Lake Saint Louis City Zoning Code
CHAPTER 415
Zoning Districts
Attachment 1 - Exhibit C, Proposed Zoning Map
Section 415.000 Purpose And Organization Of Chapter.
[Ord. No. 4190, 2-1-2021]
A.
This Chapter establishes the Official Zoning Map, individual zoning districts, and dimensional standards. This Chapter is organized as follows:
2.
Article III, Residential Zoning Districts, contains the purpose statements and dimensional standards for all residential zoning districts.
Section 415.005 Zoning Districts Established.
[Ord. No. 4190, 2-1-2021]
A.
Table 415.005.A, Zoning Districts, lists the base zoning districts and overlay zoning districts established by the adoption of the Official Zoning Map.
Table 415.005.A Zoning Districts | |
|---|---|
Abbreviation | District Name |
Residential Zoning Districts | |
RR | Rural Residential |
R1 | Residential 1 |
R2 | Residential 2 |
R3 | Residential 3 |
R4 | Residential 4 |
R5 | Residential 5 |
R6 | Residential 6 |
Nonresidential and Mixed-Use Zoning Districts | |
MU | Mixed-Use |
CO | Commercial-Office |
C1 | Commercial 1 |
C2 | Commercial 2 |
LI | Light Industrial |
PA | Public Activity |
Overlay Zoning Districts | |
PUD | Planned Unit Development |
UPT | Uptown |
B.
Some of the zoning district names established within this Code differ from previous versions of this Code. In instances where there may be references to the previous zoning district nomenclature, Table 415.005.B, Zoning District Transition Table, identifies how each of the previous district classifications was renamed for this Code. This table shall only be used for comparison purposes.
Table 415.005.B Zoning District Transition Table | |||
|---|---|---|---|
Previous Zoning Districts | Current Zoning Districts | ||
Abbreviation | District Name | Abbreviation | District Name |
Residential Zoning Districts | |||
NU | Non-Urban | RR | Rural Residential |
SR-3 | Single-Family Residential | R1 | Residential 1 |
SR-1 | Single-Family Residential | R2 | Residential 2 |
SR-2 | Single-Family Residential | R3 | Residential 3 |
None | R4 | Residential 4 | |
MF | Multiple-Family Residential | R5 | Residential 5 |
None | R6 | Residential 6 | |
Nonresidential and Mixed-Use Zoning Districts | |||
None | MU | Mixed-Use | |
OP | Office and Research Park | None | |
BP | Business Park | CO | Commercial-Office |
CB | Community Business | C1 | Commercial 1 |
HC | Highway Commercial | C2 | Commercial 2 |
LI | Light Industrial | LI | Light Industrial |
PA | Public Activity | PA | Public Activity |
Overlay Zoning Districts | |||
PD | Planned Development | PUD | Planned Unit |
PR | Planned Residential | Development | |
Overlay Zoning Districts | |||
DLRD | Downtown Lakefront Redevelopment Overlay District | UPT | Uptown |
FP | Floodplain | None | |
Section 415.010 Official Zoning Map.
[Ord. No. 4190, 2-1-2021]
A.
Incorporation of Map.
1.
The location and boundaries of the zoning districts established by this Code are shown on the Official Zoning District Map of the City of Lake Saint Louis (Official Zoning Map) which is incorporated into this Code.
2.
The Zoning District Map shall be maintained by and located in the office of the Community Development Director.
3.
The Zoning Map shall include all notations, references, subsequent lawful changes or amendments and other information shown thereon as set forth or described herein.
4.
The Zoning Map shall be updated regularly.
B.
Zoning District Boundaries.
1.
Except where otherwise necessary, zoning district boundaries shall follow the City's corporate limits, section lines, lot lines, right-of-way lines, or extensions of such lines.
2.
Where a zoning district boundary divides a lot or parcel, the location of such boundary, unless indicated by dimension, shall be determined by the scale of the Zoning District Map by the Community Development Director.
3.
Where a zoning district boundary coincides with a right-of-way line and that right-of-way line is vacated by the entity to whom the right-of-way had been dedicated, the zoning district boundary shall then follow the centerline of the former boundary.
E.
Annexed Land.
1.
Any land that is voluntarily or involuntarily annexed into the corporate limits of the City pursuant to Section 405.110, Annexation, shall retain the zoning designation originally established by St. Charles County until the annexed property is appropriately zoned in accordance with Section 405.100, Zoning Map Amendment.
Section 415.020 Purpose Statements.
[Ord. No. 4190, 2-1-2021]
A.
RR - Rural Residential.
1.
The RR District is intended to accommodate low-density, large-lot residential uses, agricultural uses, and open space to maintain the character of rural areas.
B.
R1 - Residential 1.
1.
The R1 District is intended to accommodate detached houses in suburban neighborhood settings, with access to supporting uses, such as schools, churches, parks and other public facilities.
C.
R2 - Residential 2.
1.
The R2 District is intended to accommodate detached houses in suburban neighborhood settings, with access to supporting uses, such as schools, churches, parks and other public facilities.
D.
R3 - Residential 3.
1.
The R3 District is intended to accommodate detached houses in suburban neighborhood settings, with access to supporting uses, such as schools, churches, parks and other public facilities.
E.
R4 - Residential 4.
1.
The R4 District is intended to accommodate detached houses in suburban or walkable neighborhood settings and to create transitions to complementary and supporting uses.
F.
R5 - Residential 5.
1.
The R5 District is intended to accommodate residential uses with a wide range of housing types at strategic locations where a concentration of housing near public amenities and other support facilities and services improves transitions to more intense uses or provides broader public benefits.
G.
R6 - Residential 6.
1.
The R6 District is intended to accommodate a variety of residential uses with a wide range of housing types in a compact and walkable neighborhood setting, adjacent to activity centers and walkable destinations. A well-designed public realm provides a focal point to integrate a variety of building types and create a consistent neighborhood character.
Section 415.030 Dimensional Standards.
[Ord. No. 4190, 2-1-2021; Ord. No. 4577, 11-20-2023]
B.
The standards listed in Table 415.030, Residential Dimensional Standards, may be waived or modified through one (1) of the following procedures, except where an alternative procedure is specified in this Article:
3.
Table 415.030 Residential Dimensional Standards | |||||||
|---|---|---|---|---|---|---|---|
Standard | RR | R1 | R2 | R3 | R4 | R5 | R6 |
Lot Standards (minimum) | |||||||
Lot area (square feet) | 130,680 (3 acres) | 43,560 (1 acre) | 15,000 | 9,000 | 7,000 | 7,000 | 3,0001 |
Lot area - duplex or townhouse (square feet per dwelling unit) | — | — | — | — | — | 3,500 | 2,0001 |
Lot width (feet) | 250 | 100 | 70 | 70 | 50 | 50 | 351 |
Lot width - duplex or townhouse (feet per dwelling unit) | — | — | — | — | — | 352 | 201 |
Lot depth (feet) | None | None | None | None | None | None | None |
Setbacks (minimum) | |||||||
Front setback (feet) | 90 | 50 | 35 | 25 | 20 | 303 | 101 |
Side setback (feet) | 35 | 20 | 8 | 7 | 6 | 103 | 51 |
Rear setback (feet) | 50 | 50 | 30 | 25 | 20 | 303 | 51 |
Building separation (feet) | None | None | None | None | None | 15 | 10 |
Other Standards (maximum) | |||||||
Building height (feet) | 35 | 35 | 35 | 35 | 35 | 40 | 40 |
Floor area ratio | None | None | None | None | None | None | None |
Lot coverage | None | None | None | None | None | None | None |
Net density (dwelling units per acre) | None | None | None | None | 6 | 10 | 14 |
Notes: | |
1 | Front-loaded detached houses shall comply with the dimensional standard in the R4 Zoning District. Front-loaded duplexes and townhouses shall comply with the dimensional standard in the R5 Zoning District. |
2 | Twenty (20) feet for rear-loaded duplexes and townhouses. |
3 | Detached houses shall comply with the dimensional standards in the R4 Zoning District. |
Section 415.040 Allowed Uses.
[Ord. No. 4190, 2-1-2021]
A.
Table 420.040, Table of Allowed Uses, lists the principal, accessory and temporary uses allowed within each residential zoning district, and cross-references to use-specific standards.
Section 415.050 Application Procedures.
Section 415.060 Additional Standards.
Section 415.070 Purpose Statements.
[Ord. No. 4190, 2-1-2021]
A.
MU - Mixed Use.
1.
The MU District provides walkable and active development within the City's core commercial areas with an emphasis on high-quality building and site design. The MU District is intended to allow for a mixture of residential and nonresidential uses while ensuring compatibility with surrounding established neighborhoods.
B.
CO - Commercial-Office.
1.
The CO District provides service and office uses in a campus setting, where larger institutional and office complexes are arranged around internal streets and open spaces, along with other smaller and supporting uses and businesses.
C.
C1 - Commercial 1.
1.
The C1 District provides small-scale retail, service, and office uses in close proximity to residential neighborhoods, and should be well integrated with the supporting neighborhoods character and pattern, whether suburban or walkable.
D.
C2 - Commercial 2.
1.
The C2 District provides a wide range of retail, service and office uses along commercial corridors and major arterials that draw patrons from the City, surrounding communities, and the broader region.
E.
LI - Light Industrial.
1.
The LI District provides primarily manufacturing and distribution uses at a scale, intensity and format that is unlikely to have significant impact on adjacent uses. Service, office and retail uses that are compatible with these industrial uses may be integrated into the district.
Section 415.080 Dimensional Standards.
[Ord. No. 4190, 2-1-2021]
B.
The standards listed in Table 415.080, Nonresidential and Mixed-Use Dimensional Standards, may be waived or modified through one (1) of the following procedures, except where an alternative procedure is specified in this Article:
3.
Table 415.080 Nonresidential and Mixed-Use Dimensional Standards | ||||||
|---|---|---|---|---|---|---|
Standard | MU | CO | C1 | C2 | LI | PA |
Lot Standards (minimum) | ||||||
Lot area (square feet) | None | None | 21,780 (0.5 acre) | 21,780 (0.5 acre) | 43,560 (1 acre) | 43,560 (1 acre) |
Lot width (feet) | None | None | None | None | 150 | None |
Lot depth (feet) | None | None | None | None | None | None |
Setbacks (minimum) | ||||||
Front setback (feet) | None | 50 | 50 | 422 | 50 | 35 |
Side setback (feet) | None | 15 | 10 | 9 | 25 | 9 |
Rear setback (feet) | None | 30 | 45 | 20 | 25 | 20 |
Building separation (feet) | None | None | None | None | None | None |
Other Standards (maximum) | ||||||
Building height (feet) | 40 | 701 | 30 | 30 | 50 | 35 |
Floor area ratio | None | None | 1.25 | 1.25 | None | None |
Lot coverage | None | 60% | None | None | None | None |
Net density dwelling units per acre | 18 | — | — | — | — | — |
Notes: | |
1 | Fifty (50) feet where a proposed building is located less than three hundred (300) feet from any platted and improved detached house lot located in any residential zoning district and in existence on January 1, 2007. |
2 | Twenty (20) feet when all parking areas are located in the side or rear yards. |
Section 415.090 Allowed Uses.
[Ord. No. 4190, 2-1-2021]
A.
Table 415.080 lists the principal, accessory and temporary uses allowed within each nonresidential and mixed-use zoning district, and cross-references to use-specific standards.
Section 415.100 Application Procedures.
Section 415.110 Additional Standards.
Section 415.120 Generally.
[Ord. No. 4190, 2-1-2021]
B.
Conflicts.
1.
Where a specific overlay standard is imposed, it is to be followed in lieu of a general provision of this Code.
2.
Where the overlay district does not address a required standard and it is otherwise contained in this Code, the standard in this Code shall be followed.
3.
In the event of a conflict between the standards of the overlay zoning district and this Code, the standards governing the overlay district shall control.
4.
In the event of a conflict between the standards of the overlay zoning district and other standards in this Code, the most restrictive shall control
5.
In some instances, land may be classified into multiple overlay districts. In the event of an express conflict between the standards of the multiple overlay districts, the most restrictive standards shall apply.
Section 415.130 PUD - Planned Unit Development Overlay District.
[Ord. No. 4190, 2-1-2021]
A.
Purpose.
1.
The PUD District is intended to encourage innovative land planning and site design concepts that achieve a high level of public benefits, environmental sensitivity, energy efficiency, aesthetics, high-quality development, and other community goals by:
a.
Reducing or eliminating the inflexibility that may result from strict application of the standards of this Code that were designed primarily for individual lots;
b.
Allowing greater freedom in selecting the means to provide access, site design, open space, and design amenities;
c.
Promoting quality urban design and environmentally sensitive development by allowing development to take advantage of special site characteristics, locations, and land uses;
d.
Requiring compliance with development standards that reflect the high level of public investment in adjoining lands; and
e.
Facilitating implementation of the Lake Saint Louis Comprehensive Plan and development in the interest of health, safety and welfare of the residents of Lake Saint Louis.
B.
Previously Approved Planned Developments.
1.
The following zoning districts and developments, including development plans and any associated text and standards, which were approved prior to the effective date of this Code are now designated as separate PUD Overlay Districts, and shall continue in effect and be considered legally conforming under this Code:
a.
Properties with a prior zoning designation of Planned Development District (PD) or Planned Residential District (PR), and which have been platted, developed, or granted approval of a preliminary development plan or final development plan that is valid as of the effective date of this Code.
b.
Areas platted prior to March 21, 1978, and subject to a zero lot line development concept, more specifically identified as the Patio Cove I, Patio Cove II, Patio Cove III, and Patio Green subdivisions.
2.
Developments identified in Subsection (B)(1) shall be subject to all applicable standards of this Code, including those of the underlying base zoning district, except where expressly modified by this Article or by a previously approved ordinance, resolution, plan, plat, or other approval.
3.
Preliminary development plans, final development plans, and site plans for areas approved prior to the effective date of this Code for developments identified in Subsection (B)(1) will be considered to be Master Plans (Section 405.150) or site plans (Section 405.160), as determined by the Community Development Director.
C.
Eligibility.
1.
An application for a Zoning Map amendment (Section 405.100) to include a property in the PUD Overlay District may only be accepted for review and consideration if the application meets the following criteria:
a.
Need. The proposed development could not be developed using conventional zoning districts or standards.
b.
Minimum Size. At least one of the following criteria is met:
c.
Unified Control. The entire area of the proposed development shall be under single ownership or unified control, such that there is a single entity having responsibility for completing the entire project. This provision shall not prohibit a transfer of ownership or control, provided that a unified ownership remains.
D.
E.
Regulatory Flexibility.
1.
Unless otherwise expressly allowed by this Article and approved by the Board of Aldermen during the approval process, property located in the PUD Overlay District shall be subject to all applicable standards of this Code, including those of the underlying base zoning district.
2.
To encourage flexibility and creativity, the Board of Aldermen may impose additional standards beyond those contained elsewhere in this Code and may approve specific exceptions from or modifications to the requirements of the underlying base zoning district and other requirements of this Code as a part of the approval process.
3.
Any regulatory modification shall be approved through a finding by the Board of Aldermen that:
a.
The modification addresses a unique situation.
b.
The project provides public benefits to the City in an amount proportional to the number and degree of requested regulatory modifications. Public benefits include but are not limited to architectural distinction, new or enhanced public infrastructure, sustainable site and/or building features, land dedication, public art, open space and landscaping, or enhancements to off-site City-owned parks or other public facilities.
c.
The development quality is better than what could have been accomplished through the strict application of the base zoning district standards or other standards of this Code.
4.
After a property has been included in the PUD Overlay District, requests for relief from any additional standards or regulatory modifications mentioned in Subsections (E)(2) and (3) on a single lot or two (2) adjacent lots shall require approval of a minor adjustment (Section 405.220) or variance (Section 405.230), except where an alternative process is specified elsewhere in this Code. Requests for relief for multiple properties shall be processed as a new application in accordance with Subsection (D).
Section 415.140 UPT - Uptown Overlay District.
[Ord. No. 4190, 2-1-2021]
A.
Purpose.
1.
The purpose of the Uptown Overlay District is to facilitate the revitalization of the area near the intersection of Lake Saint Louis Boulevard and Interstate 70 into a walkable, mixed-use district in accordance with the recommendations of the City's Comprehensive Plan.
B.
Applicability.
1.
The requirements of this Article shall apply to all buildings, structures, sites and properties within the Uptown Overlay District as depicted on the Official Zoning Map, unless specifically modified herein and with the following exception:
E.
Dimensional Standards.
1.
Table 415.140, UPT - Uptown Overlay District Dimensional Standards, lists the dimensional standards for the Uptown District. Refer to Chapter 410, Article III, Measurements and Exceptions, for additional standards.
Table 415.140 UPT - Uptown Overlay District Dimensional Standards | |
|---|---|
Lot Standards (minimum) | |
Lot area (square feet) | None |
Lot width (feet) | None |
Lot depth (feet) | None |
Setbacks (minimum) | |
Front setback (feet) | None, except buildings fronting Lake Saint Louis Boulevard must be located no closer than 20 feet and no further than 30 feet from the right-of-way line of Lake Saint Louis Boulevard |
Side setback (feet) | None |
Rear setback (feet) | None, except 20 feet from rear lot lines abutting Lake Saint Louis |
Building separation (feet) | 12 |
Other Standards (maximum) | |
Building height (feet) | |
Lots on the north side of Lake Saint Louis Boulevard or lots fronting Veterans Memorial Parkway. | 70 feet |
All other lots | 50 feet |
Floor area ratio | None |
Lot coverage | 80% |
Net density (dwelling units per acre) | 30 |
F.
Development Standards.
1.
Parking.
a.
Parking areas shall be designed to not overpower the character of the development nor appear as a dominant feature of the site.
b.
Surface parking lots shall be located to the rear or side of the building.
c.
Surface parking lots shall be prohibited within the front yard setback.
d.
Surface parking lots shall be prohibited within the rear yard setback for lots adjacent to Lake Saint Louis.
e.
Shared parking is encouraged.
f.
Parking structures shall be provided with a facade designed to mimic the adjacent buildings, so as to assist in integrating and camouflaging the structure.
3.
Site Circulation.
a.
Sidewalks.
(1)
Sidewalks, at least six (6) feet in width, shall be provided on both sides of all streets and/or along the full length of any facade featuring a customer entrance and along any facade abutting a public parking area.
(2)
Sidewalks are required extending from the public pathway system to the front door of the establishment.
(3)
Front doors of all buildings will be physically and visually connected to one another by sidewalks or other pedestrian pathways that clearly delineate the importance of the pedestrian and pedestrian movement.
(4)
Crosswalks, in compliance with district-wide standards, will be placed at all street intersections, drive entrances, and internal walkways.
(5)
Casual meeting areas in parklike settings featuring landscaping, benches, pedestrian-oriented lighting are encouraged along sidewalks and pathways.
b.
Promenade.
(1)
All projects located south of Lake Saint Louis Boulevard and having frontage along Lake Saint Louis or Peruque Creek shall provide a public promenade along that frontage within the boundaries of the property being developed.
(2)
The promenade shall be design in accordance with the following:
(a)
Allow public access for walking, biking, outdoor dining, and lake views.
(b)
Include amenities, such as landscaping, trees, seating areas, and pedestrian lighting.
(c)
The width of the promenade should be as wide as possible to allow its use as a multi-functional, public space. The minimum clear width, as necessary in constrained areas, should be no less than twelve (12) feet, or more if needed to accommodate emergency or maintenance vehicles.