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Greenwood Village City Zoning Code

ARTICLE 26

Subdivisions

Division 3 - Design Principles[3]


Footnotes:
--- (3) ---

Editor's note— Ord. 07, §4, adopted May 3, 2021 renamed div. 3 from "urban design principles" to "design principles."


Sec. 16-26-10. - Intent and applicability.

(a)

Intent. The intent of this Article is to promote the health, safety and welfare of the present and future inhabitants of the City by:

(1)

Encouraging the orderly development of the City;

(2)

Promoting orderly and innovative community design;

(3)

Providing the proper arrangement of streets in relation to existing or planned streets and ensuring that streets facilitate safe, efficient and pleasant driving, walking and biking;

(4)

Promoting parks, trails and open spaces to meet the recreational needs of City residents;

(5)

Establishing adequate and accurate records of land subdivision;

(6)

Providing for adequate, safe and efficient public utilities and improvements; and

(7)

Ensuring compliance with this Chapter and the Comprehensive Plan.

(b)

Applicability. This Article shall apply to all property within the City, and no subdivision of property shall be made except in compliance with this Article.

(Prior code Title 14; Ord. 32 §1, 2011)

Sec. 16-26-210. - Preliminary plat.

A preliminary plat drawing shall include all applicable or staff required data from the Preliminary Plat Application Checklist and this Chapter.

(Prior code Title 14, 15.40.040—15.40.200; Ord. 32 §1, 2011)

Sec. 16-26-220. - Final plat.

(a)

Plat drawing. A final plat drawing shall include all applicable or staff required data from the Final Plat Application Checklist and this Chapter.

(b)

Standards. The final plat shall comply with the following:

(1)

The plat shall be prepared by or under the direct supervision of a land surveyor registered in the State.

(2)

Lengths shall be shown to the nearest hundredth of a foot and bearings shall be shown in degrees, minutes and seconds.

(3)

An accurate and complete monumented land survey pursuant to Section 38-51-102(13), C.R.S., shall be made of the land to be subdivided, including a traverse of boundaries when computed from field measurements on the ground, with a minimum unadjusted ratio of closure of one (1) part in fifteen thousand (15,000).

(4)

The perimeter survey description of the subdivision shall include at least one (1) tie to an existing section monument of record and a description of monuments. The survey shown shall not have an error greater than one (1) part in ten thousand (10,000).

(5)

Bearings, distances and curve data of all perimeter boundary lines shall be indicated outside the boundary line, not inside, with the lot dimensions.

(6)

The surveyor shall rehabilitate or upgrade any section or quarter section corner used to control the survey of the subdivision as required by the rules promulgated by the State Board of Registration for Professional Engineers and Professional Land Surveyors.

(Prior code Title 14, 15.40.040—15.40.200; Ord. 32 §1, 2011)

Sec. 16-26-230. - Engineering plans and specifications.

(a)

A final plat shall be accompanied by engineering plans and specifications in compliance with this Section and other applicable standards referenced by this Article.

(b)

Construction plans and profiles. The plans and profiles shall be prepared by a registered professional engineer licensed in the State, shall be twenty-four (24) inches high by thirty-six (36) inches wide and provide the following information:

(1)

The horizontal to vertical scales chosen to best depict the aspects of the design;

(2)

Minimum horizontal scale of 1" = 100';

(3)

Minimum vertical scale of 1" = 10';

(4)

The typical road geometric and structural cross-section shown on each plan sheet;

(5)

Public right-of-way lines and widths, road names, lot lines, tangent lengths and bearings, curve radii, delta angles, curve lengths, chord lengths and bearings, stationing at all beginnings of curves and ends of curves, intersections, structures, angles, curb lines, cross pans, traffic control devices, islands, striping, signs, drive cuts and curb returns and radii, in accordance with approved standards and standard engineering practice;

(6)

Water, sewer, sanitary sewer and any other utilities, such as irrigation ditches;

(7)

Ground lines, grade lines of curb and gutter or centerline of street elevation at point of intersection of vertical curves, intersections and other critical points, structures and all other features required to enable construction in accordance with approved standards; and

(8)

Signature blocks for all utility and service providers, unless otherwise provided in agreement form.

(c)

Structure details. Data regarding construction of major structures and road appurtenances, such as bridges, culverts, gutters, drives, walks and cross pans; detail shall include orientation line and grade, cross-sections, dimensions, reinforcement schedules, materials and quality specification.

(d)

Sewage collection and water supply distribution plans, profiles and specifications. The plans, profiles and specifications shall be prepared by a registered professional engineer and shall be accompanied by written approvals from the applicable water and sanitation district.

(e)

Final drainage plans and reports. Based upon the approved preliminary drainage plan, a final report shall be submitted in accordance with the Drainage Criteria:

(1)

Cross-sections of each water carrier showing high water elevations for one-hundred-year run-off and adjacent features that may be affected thereby;

(2)

Written approvals from other affected agencies, such as FEMA, Arapahoe County and ditch companies;

(3)

Supporting calculations for run-offs, times of concentration and flow capacity, with all assumptions clearly stated with proper jurisdiction when needed or requested; and

(4)

Erosion control plans, when required to be submitted as a result of preliminary plan review.

(f)

Final grading plan. The final grading plan shall be twenty-four (24) inches by thirty-six (36) inches and illustrate existing and proposed contours (maximum two-foot contour) and lot and block grading details.

(g)

Soils reports. The soils reports shall detail special foundation requirements (shall be submitted after overlot grading is complete) and pavement design (may be submitted prior to building permit). Two (2) copies of a soil study in accordance with the requirements of the Drainage Criteria.

(h)

Final street lighting plan. The final street lighting plan shall be prepared in conjunction with the electric utility and the City. The plan shall specify the number, kind and approximate location of all street lights and comply with the Design and Construction Standards manual.

(Prior code Title 14; Ord. 32 §1, 2011)

Sec. 16-26-240. - Subdivision improvement agreement.

The subdivision improvement agreement required for approval of a final plat shall be in the form set forth in Appendix 16-J and shall be reviewed and approved by the City Attorney prior to execution.

(Prior code Title 14; Ord. 32 §1, 2011)

Sec. 16-26-250. - Vacation map.

A vacation map shall include all applicable data from the Vacation Application Checklist.

(Prior code Title 14; Ord. 32 §1, 2011)

Sec. 16-26-260. - Lot line adjustment.

A lot line adjustment shall include all applicable data from the Lot Line Adjustment Application Checklist and any other information deemed necessary by the Director.

(Prior code Title 14; Ord. 32 §1, 2011)

Sec. 16-26-270. - Vacation of interior lot line.

A vacation of an interior lot line shall include all applicable data from the Vacation of Interior Lot Line Application Checklist and any other information deemed necessary by the Director.

(Prior code Title 14; Ord. 32 §1, 2011)

Sec. 16-26-280. - Certified survey map.

A certified survey map shall include all applicable data from the Certified Survey Map Application Checklist and any other information deemed necessary by the Director.

(Prior code Title 14; Ord. 14 §4, 2010; Ord. 32 §1, 2011)

Sec. 16-26-290. - Administrative subdivision approval.

(a)

The provisions of this section shall be applicable only to those properties within the R-0.1 zone district upon which a duplex residential structure is fully constructed in accordance with the provisions of this Chapter.

(b)

Any undivided parcel or lot within the R-0.1 zone district upon which is lawfully constructed a duplex residential structure may be subdivided into separate lots or parcels by the owner thereof upon submission to the Director of a subdivision plat identifying the separate lots or parcels created thereby. Such subdivision plat shall:

(1)

Create a separate legal description for each individual lot or parcel upon which is to be located each duplex unit;

(2)

Identify the location of each existing duplex unit upon each such newly created separate lot or parcel;

(3)

Identify the newly created property line separating the previously existing lot or parcel into separate lots or parcels;

(4)

Bear the stamp of a licensed land surveyor;

(5)

Conform to any other requirements established by the director of community development and approved by resolution by the City Council; and

(6)

Be accompanied by a jointly executed agreement between the owners regarding maintenance of a common appearance of the exterior of the entire building.

(c)

Any subdivision plat which conforms to the requirements of subsection (b) hereof shall be approved by the Director. Any subdivision plat which does not conform to the requirements of subsection (b) hereof shall be returned to the owner for modification and correction. Upon approval by the Director, the subdivision plat shall be recorded and shall be effective as of the date of such recordation.

(d)

Nothing contained herein shall authorize any owner of any property to construct, repair, reconstruct or maintain any duplex residential structure in any manner which is not in compliance with the provisions of this Chapter or any other provision of the Greenwood Village Code or any regulations promulgated thereunder.

(Prior code 15.22.060; Ord. 32 §1, 2011)

Sec. 16-26-310. - Applicability and design principles.

(a)

Applicability. This Division shall apply to all property within the City and no subdivision of property shall be made except in compliance with this Article.

(b)

Minimum standards. At a minimum, all lots shall conform to all of the following Design Principles:

(1)

The City shall be designed as a group of integrated neighborhoods with appropriate residential, commercial, and public facilities. The neighborhood, as a planning unit, is intended as an area principally for residential use. Where appropriate, space for religious, recreational, educational, and shopping facilities shall be provided and designed as an integral part of each neighborhood at a scale commensurate with the size and needs of the neighborhood;

(2)

Minimum standards for development are contained in this Chapter, the Drainage Criteria Manual, the Building Code, and in these regulations. However, the City of Greenwood Village Comprehensive Plan expresses policies designed to achieve an optimum quality of development. If only the minimum standards are followed, as expressed by the various resolutions and codes regulating land development, a standardization of development will occur. This will produce a monotonous setting. Subdivision design shall be of a quality to carry out the purpose and spirit of the policies and special reports expressed in the City of Greenwood Village Comprehensive Plan (and amendments thereto) and in these regulations;

(3)

The layout of lots and blocks shall provide desirable settings for making use of natural contours and maintaining existing views, affording privacy for the residents and protection from adverse noise and vehicular traffic. Natural features and vegetation of the area shall be preserved if at all possible;

(4)

Tree masses and large individual trees shall be preserved. The system sidewalks and roadways and the lot layout shall be designed to take advantage of visual qualities of the area;

(5)

Pedestrian ways shall be separated from roadways used by vehicular traffic. Sidewalks shall be designed to provide all residential building sites with direct access to all neighborhood facilities, including schools, parks and playgrounds, churches, and shopping areas;

(6)

Tracts subdivided into large parcels which offer the possibility of further subdivision, shall be arranged to allow the opening of future streets and logical further subdivision;

(7)

Steep land, unstable land, and areas having inadequate drainage shall be noted on the preliminary plat and unless acceptable provisions are made for eliminating or controlling problems which may endanger health, or property, shall not be platted for residential occupancy;

(8)

When a public water system is used, fire hydrants of Denver Thread Type, spaced with maximum separation of twelve-hundred (1,200) feet between hydrants and served by six (6) inch or larger mains, shall be required;

(9)

Telephone lines and electric lines and other like utility services shall be placed underground. The subdivider shall be responsible for complying with the requirements of this subsection, and shall make the necessary arrangements including any construction or installation charges with each of the serving utilities for the installation of such facilities and shall be subject to all other applicable County and State regulations. Transformers, switch boxes, terminal boxes, meter cabinets, pedestals, ducts, standard street lighting (as required), overhead electric transmissions and distribution feeder lines, overhead communication long distance trunk and feeder lines, and other facilities necessarily appurtenant to such underground utilities may be placed above ground. Such facilities shall be placed within easements or public streets, as herein provided, or upon private easements or rights-of-way for particular facilities. The provisions of this subsection shall not apply to existing facilities within subdivisions platted prior to the adoption of these regulations when replatted or amended;

(10)

When a tract is subdivided into building lot(s) or parcel(s) which are large enough to accommodate further subdivision, such lot(s) or parcel(s) shall be so arranged as to permit the logical location and opening of future streets and appropriate re-subdivision, with provision for adequate utility easements and connectors for such re-subdivision;

(11)

Where a street will eventually be extended beyond the plat but is temporarily dead-ended, an interim turnaround may be required; and

(12)

Dedication of half streets shall be prohibited except where essential to the reasonable development of the subdivision in conformity with the other requirements of these regulations, and provided that the City Council finds it will be practical to obtain the dedication of the other half of the street right-of-way.

(Prior code Title 14; Ord. 32 §1, 2011; Ord. 07, §5, 2021)

Sec. 16-26-410. - Lot design.

(a)

Applicability. The width, depth, shape and orientation of lots within a subdivision shall be designed for the type of use contemplated.

(b)

Minimum standards. At a minimum, all lots shall conform to all of the following standards:

(1)

No lot shall be platted in areas subject to flooding except in conformance with this Code.

(2)

Every lot shall front a public street or private street with an easement guaranteeing public access; provided that a residential lot shall not front or obtain direct access from an arterial street. When driveway access from an arterial street is necessary for several adjoining residential lots, such lots shall be served by a combined access drive which shall be platted as a permanent access easement.

(3)

The depth and width of a lot shall be adequate to provide the necessary private service and parking facilities required by the type of use contemplated.

(4)

Lots shall be designed to provide positive drainage away from all buildings, and individual lot drainage shall be coordinated with the general storm drainage pattern for the area.

(5)

Double frontage and reverse frontage lots shall be avoided except where they are needed to provide for separation of residential development from major streets or to overcome specific disadvantages of topography and orientation. A planting and screening easement of at least ten (10) feet shall be provided along the portion of the lots abutting such a traffic arterial or other use where screening is required.

(6)

Where possible, side lot lines shall be at right angles to the street line or at right angles to the tangent to the curve of the street line.

(Prior code Title 14; Ord. 32 §1, 2011)

Sec. 16-26-420. - Block design.

(a)

The lengths, widths and shapes of blocks shall be determined with due regard to:

(1)

Topography;

(2)

Convenient and safe access and circulation;

(3)

Applicable zoning standards regarding lot dimensions;

(4)

Provision of adequate building sites suitable to the special needs of the type of use contemplated; and

(5)

Availability, location and capacity of utility service and utility system design and capacity.

(b)

Residential blocks shall not exceed one-quarter (¼) mile in length unless approved by the City Council.

(Prior code Title 14; Ord. 32 §1, 2011)

Sec. 16-26-430. - Street design.

(a)

Applicability. All streets, based on their classification, shall meet the minimum street design standards in this Section and the Greenwood Village Design and Construction Standards.

(b)

Arrangement and location.

(1)

The arrangement of streets shall be planned with due regard to existing roads, future road plans, topography, soil conditions, drainage and erosion, convenience and aesthetics and in accordance with this Code.

(2)

The street layout shall provide for the continuation of principal streets between adjacent properties when such continuation is necessary for convenient traffic flow, fire protection or provision of utilities.

(3)

Streets shall be designed to safely accommodate all potential users, including vehicles, bicycles, pedestrians and persons with disabilities.

(4)

If adjacent property is undeveloped and a street must dead-end temporarily, a temporary cul-de-sac may be required.

(5)

All streets shall intersect at substantially right angles with each other.

(6)

Streets shall be located to ensure adequate access for private and emergency vehicles and to enhance the subdivision design.

(7)

Streets shall follow contours so as to avoid steep grades or construction of retaining walls.

(8)

Streets shall be located to avoid horizontal or vertical alignment problems, such as:

a.

Blind spots;

b.

Traffic signals and intersections at or near the crest of hills;

c.

A combination of steep grades and curves with intersections of streets or intersections of streets and driveways;

d.

Poor sight distances at intersections, including line-of-sight restrictions due to vegetation, topography or other natural features; and

e.

Other identifiable safety hazards.

(c)

Streets in the following zone districts shall include curb, gutter, sidewalk and pavement: R-0.75, R-0.5, R-0.25, R-0.1 and R-0.05.

(d)

At the time of development, unless otherwise determined by the City Council approval, all new single-family residential streets shall meet the minimum street design standards in order to be dedicated for use by the public and accepted by the City for ongoing maintenance at the end of the applicable warranty period.

(e)

New subdivisions with gravel streets are prohibited.

(f)

New subdivisions shall provide both bicycle and pedestrian facilities which facilitate movement between residential areas and activity areas, such as public buildings, schools, shopping areas, playgrounds, open space and recreation areas. Such facilities shall be constructed concurrently with the development.

(Prior code Title 14; Ord. 32 §1, 2011; Ord. 06 §1, 2016)

Sec. 16-26-440. - Street classification.

All streets according to their classification shall comply with the Greenwood Village Design and Construction Standards manual.

(Prior code Title 14; Ord. 32§1, 2011)