A.
Single-Family Attached and Multiple-Family Dwellings.
1.
Number of Buildings per Lot. Multiple buildings containing attached single-family and multiple-family dwellings are permitted on a single zoning lot.
3.
Minimum Separation Between Buildings. Single-family attached and multiple-family buildings situated around a courtyard will have the following minimum distance requirements as measured between exterior walls:
4.
Building Design. Attached single-family and multiple-family dwellings must:
[Amendment 33 - Ordinance 2020-068, 11-23-2020]
a.
Be designed with windows and/or doors on all building facades that face a street to avoid the appearance of blank walls; and
b.
Be designed with garage doors or carports facing an alley, where there is an alley serving the site, or facing an interior driveway, whenever possible. Where attached garages face a public street, they may not extend more than five (5) feet beyond the street-facing façade.
c.
Any portion of the building that is within one hundred (100) feet of a less intense zoning district may not exceed one hundred twenty-five percent (125%) of the maximum height permitted in the less-intense zoning district.
d.
Four-sided design, including entryways, windows and consistent materials along with architectural details shall be utilized on all elevations to add diversity and visual character to the building(s).
e.
Front entrance features shall include pedestrian-scale design elements. This includes: side lights or transom windows, architectural ornamentation or single-story roofs or canopies that are then integral to the overall architectural design of the building.
f.
Variety in exterior materials is encouraged. Composition of entirely one (1) material is prohibited. A brick, stone or similar material base is required up to at least three (3) feet of the front building facade.
g.
Prohibited building materials include:
h.
Roof mounted equipment, including ventilators and satellite dishes, shall be completely screened from view using parapet walls at the same height as the equipment. Screening shall be of the same materials and design as the larger building to maintain a unified appearance.
5.
Private Yards for Attached Single-Family Dwellings. All attached single-family dwelling unit developments must include private yards space in accordance with the following:
a.
Attached single-family dwellings must have private yards consisting of a minimum of two hundred (200) square feet in area for each attached single-family dwelling unit;
b.
A private yard may be located next to a front wall, rear wall or end wall, provided that it is immediately adjacent to the attached single-family dwelling unit it serves and is directly accessible from the unit by way of a door or steps;
c.
Required private yards must be landscaped with turf, groundcover, shrubs, trees or other landscape improvements, such as walkways or patios; and
d.
Private yards may be enclosed with fences.
6.
Common Open Space for Multiple-Family Dwellings. In addition to the minimum lot area required per dwelling unit in the district, all multiple-family dwelling unit developments must include common open space in accordance with the following:
a.
A minimum of one hundred fifty (150) square feet of common open space must be provided per dwelling unit;
b.
Common open space must be accessible to all dwelling units and improved with landscaping, recreational facilities, and/or pedestrian walkways; and
c.
Common open space must be maintained by the property owners association.
B.
Cluster Residential Developments.
1.
Description.
a.
The purpose of this section is to encourage subdivision design that is more efficient and provides more open space and greater natural resource protection than conventional subdivision designs. Cluster residential developments allow more compact and less costly road networks and utilities, and can also be used to preserve an area’s semi-rural character.
b.
The standards of this section require that a specified portion of each cluster residential development be set aside and permanently reserved as open space. The required open space may be used to provide recreational opportunities for the development’s residents and/or to protect significant natural resources on the site.
2.
Bulk and Dimensional Standards.
a.
Cluster residential developments are expressly exempt from the lot area, lot width, building coverage and yard requirements of this code. Lots must be of size and shape to allow for compliance with applicable building codes and to provide for a high-quality living environment for subdivision residents. Lots abutting or within one hundred fifty (150) feet of an existing or approved subdivision may be no smaller than eighty percent (80%) of the average lot size within the adjacent subdivision.
b.
Cluster residential developments must comply with all other bulk and dimensional standards of Section 405.030.
c.
A minimum twenty-five-foot yard must be provided adjacent to all rights-of-way and the boundary of the development.
d.
All buildings within a cluster residential development must be separated by a minimum of fifteen (15) feet, except that single-family attached and multiple-family buildings must be separated according to the requirements of Section 420.010A.3.
3.
Minimum Site Area. All cluster residential developments must contain a minimum of two (2) acres of land.
4.
Maximum Density/Minimum Lot Area.
a.
The maximum number of dwelling units allowed within a cluster residential development is computed by dividing the overall area of the site by the applicable minimum lot area per dwelling unit standard of Section 405.030 (Bulk and Dimensional Standards).
b.
Individual lots in a cluster residential development are not required to comply with the minimum lot area standards of Section 405.030.
c.
If the cluster residential development is located in more than one (1) district, the maximum number of dwelling units must be calculated separately for each portion of the site lying within a different district.
5.
6.
Open Space.
a.
Amount Required. All cluster residential developments must dedicate a minimum of thirty percent (30%) of the overall site area as permanent, active or passive open space.
b.
Use, Location and Design.
(1)
Open space must be dedicated or reserved for one (1) or more of the following uses:
(a)
Conservation of, and avoidance of development in, any areas that potentially pose a significant hazard to people or property such as drainageways, wetlands and lands whose soils or slopes make them particularly unsuitable for development or susceptible to erosion;
(b)
Conservation and protection of any identified significant natural areas, including streams, rare plant communities, wildlife habitats, or other environmentally sensitive areas where development might threaten water quality or ecosystems; and
(c)
Provision of active and/or passive outdoor recreation opportunities, either for the general public or for the development’s residents or employees and their guests (this requirement is not intended to preclude a membership requirement or fee for use of recreation facilities such as golf, swim, or tennis clubs, as long as residents have an opportunity to join the club or pay to use club facilities).
(2)
Highest priority for the location, design and use of open space must be given to conserving and avoiding development in any natural hazard areas or significant natural areas on the site.
(3)
Open space may contain active recreation areas and only those buildings, structures, accessways and parking facilities that are necessary and accessory to its principal uses (e.g., parking lots, pedestrian paths, utility lines, driveways, and club houses). All such structures and surfaces must be designed to protect and enhance the natural character and function of the open space. All active recreation areas must comply with the following:
(a)
Development of the area must include a tree and native vegetation preservation plan that protects mature vegetation areas and limits disturbance to the minimum required for construction;
(b)
Landscaping must comply with the planting list; and
(c)
The location, size, character and shape of required open space must be located on portions of the site that are most appropriate for the intended use (e.g., open space proposed for ball fields must be located on land that is relatively flat, dry, and can be accessed conveniently and safely by intended users).
c.
Boundary Markers.
(1)
Boundary markers must be put in place clearly marking required open space areas before, during and after construction.
(2)
Boundary markers must be installed at the intersection of private lot lines with the outer edge of the permanent open space area before receiving final City approval of plans for clearing, grading, or sediment and erosion control.
(3)
Construction fencing must be placed at the outer edge of the existing vegetation to be preserved in the permanent open space area. This fencing must be maintained throughout the construction process.
(4)
Permanent signs reading “Permanent Open Space Set-Aside—Do Not Disturb” must be placed at the edge of the permanent open space as follows:
d.
Construction in Phases. A description of planned development phases must be included in the application for, and made a part of the approval of the final plat for the cluster housing development. Each scheduled phase of development must include a proportion of required common open space based on the proportion of dwelling units that are being constructed in each phase.
7.
Ownership and Maintenance of Open Space.
a.
The applicant must identify the owner of the open space. The designated owner and the owner’s successors are responsible for maintaining the open space and any associated facilities. If a property owners association is the owner, membership in the association is mandatory and automatic for all property owners of the subdivision and their successors. If a property owners association is the owner, the property owners association must have lien authority to ensure collection of dues from all members.
b.
The applicant must submit a management plan for the open space and all common areas. The management plan must:
(1)
Allocate responsibility and guidelines for the maintenance and operation of the open space and any associated facilities, including provisions for ongoing maintenance and for long-term capital improvements;
(2)
Estimate the costs and staffing requirements needed for maintenance, operation and insurance and outline the means by which necessary funding will be obtained or provided;
(3)
Provide that any changes to the management plan be approved by the development review committee; and
(4)
Provide for enforcement of the management plan.
c.
In the event the party responsible for maintenance of the open space fails to maintain all or any portion in reasonable order and condition, the City may assume responsibility for its maintenance and may enter the premises and take corrective action, including the provision of extended maintenance. The costs of such maintenance, plus any administrative costs and penalties, may be charged to the owner, property owner association, or to the individual property owners that make up the property owners association. Unpaid costs will become a lien on all subdivision properties.
8.
Legal Instrument for Permanent Protection. The open space must be protected in perpetuity by a binding legal instrument that is recorded with the deed. The instrument for permanent protection must include clear restrictions on the use of the open space. These restrictions must include all restrictions contained in this section, as well as any further restrictions the applicant chooses to place on the open space. The legal instrument must be one (1) of the following:
a.
A permanent conservation easement (RSMo. 67.880) in favor of either:
(1)
A land trust or similar conservation-oriented non-profit organization with legal authority to accept such easements. The organization must be bona fide and in perpetual existence and the conveyance instruments must contain an appropriate provision for transfer in the event the organization becomes unable to carry out its functions; or
(2)
A governmental entity (if the entity accepting the easement is not the City, then a third right of enforcement favoring the City must be included in the easement);
b.
An open space tract protected by a permanent restrictive covenant for conservation purposes in favor of a governmental entity; or
c.
An equivalent legal tool that provides permanent protection, as approved by the City attorney.
C.
Manufactured Home Parks.
1.
General Standards for Manufactured Home Parks.
a.
Manufactured home parks must contain a minimum area of fifteen (15) acres.
b.
The minimum width of a manufactured home park is three hundred (300) feet.
c.
A manufactured home park must be entirely owned by an individual, firm, trust, partnership, public or private association or corporation. No lots may be individually sold.
d.
Manufactured home parks can only be used for residential purposes, customary and incidental accessory uses common to residential districts, and service buildings as permitted in Section 420.010C.7. Manufactured homes may be offered for sale in the park by owners selling their individual units only.
e.
No manufactured home may be located for occupancy or occupied unless on a designated lot within a manufactured home park, unless otherwise expressly permitted by this Code. No manufactured home may be parked within a public right-of-way for more than twenty-four (24) hours.
f.
Recreational vehicles may not be occupied at any time.
2.
3.
Lighting. The interior and exterior of all manufactured home parks must be constructed with sufficient exterior lighting that allow for safe movement of vehicles and pedestrians at night. Lighting of streets and community buildings must provide an average illumination level of one-half (1/2) foot-candles. All exterior lighting must be installed and maintained by the operator of the park.
4.
Recreation Areas.
a.
A minimum of five hundred (500) square feet of recreation and/or open space area must be provided per manufactured home lot. Each recreational or open space area must contain a minimum of five thousand (5,000) square feet in area and be provided with adequate recreational equipment and facilities. These include suitable landscaping, fencing and seating areas.
b.
If a swimming pool is provided the pool must be constructed in accordance with City requirements. See Section 420.050B.
c.
Recreation and open space areas must be centrally located and connected to pedestrian walkways and sidewalks within the park.
d.
The required recreational or open space area must be fully developed before fifty percent (50%) of the lots are occupied.
5.
Landscaping and Paving.
a.
Each manufactured home space must include on-lot landscaping consisting of at least two (2) shade trees with a caliper of at least one and one-half (1 1/2) inches.
b.
Exposed ground surfaces in all parts of every manufactured home park must be paved, covered with stone screenings or other solid materials, or protected with a vegetative growth that is capable of preventing soil erosion and of eliminating objectionable dust.
c.
All manufactured home parks and spaces shall be maintained in a neat and presentable manner. All landscaping, park and open space improvements required by the Unified Development Code must be maintained.
d.
All manufactured home parks must be surrounded by a screen and/or landscape buffer in accordance with Section 430.070C1.
6.
Storm Shelters. A storm shelter which is adequate to accommodate three (3) persons per manufactured home must be provided and centrally located within the park.
7.
Service Buildings and Community Facilities. Service buildings, management offices, community storage areas, indoor recreation areas and/or laundry and similar facilities that serve park residents may be provided within a manufactured home park, provided they do not occupy more than five percent (5%) of the area of the park. Service buildings and community facilities must be located, designed and intended to serve the residents of the park and present no visible evidence of their commercial character from any area outside the park.
8.
Individual Storage Areas. A community storage area with a minimum of two hundred fifty (250) square feet per manufactured home space must be provided within the park. This storage area must be fenced with a solid, visually obstructing wall or fence with a height of six (6) feet.
9.
Sanitary Sewer and Water Supply.
a.
Every space within a manufactured home park must be provided with public sanitary sewer and water service with all utility lines constructed in accordance with City approved plumbing and sanitary codes. All utility lines, including electrical service must be placed underground.
b.
No manufactured home lot may be located farther than three hundred (300) feet from a fire hydrant.
c.
Sanitary conditions within any manufactured home park must be consistent with the regulations of the Missouri Board of Health, Clean Water Commission, other State regulatory agencies and ordinances of the City.
11.
Standards for Individual Manufactured Homes and Park Spaces.
a.
Dimensional Standards.
(1)
All manufactured home park spaces must meet the following dimensional requirements:
Standard | Dimension |
|---|---|
Minimum manufactured home space area | 4,000 square feet |
Minimum manufactured home space width | 50 feet |
Minimum manufactured home dimensions | 10 feet x 50 feet |
Minimum setback from perimeter property lines | 30 feet |
Separation between manufactured homes | 30 feet |
Separation between manufactured homes and unattached accessory structures, on the same or another home site) | 10 feet |
Separation between manufactured homes and accessory structures and other manufactured home park structures, including offices, service buildings, community buildings or laundry buildings | 30 feet |
Separation between manufactured homes and internal street pavement, parking areas or common areas | 15 feet |
(2)
In measuring the minimum separation between manufactured homes, measurements will be taken from the outermost projection of the manufactured home or from any attached accessory structure, such as decks, stairs, stoops, porches, attached carports, and any other structure that is not separated from the manufactured home by at least ten (10) feet.
b.
Construction Standards.
(1)
All manufactured homes must be constructed according to applicable local building codes. Where the provisions of the building code conflict with the standards of this section, the more restrictive provision will control.
(2)
Every manufactured home must be placed on a solid concrete slab under the entire home with a thickness adequate to support the structure.
(3)
Every manufactured home must be securely skirted within fifteen (15) days after placement in a park by enclosing the open area under the unit with a material that is comparable with the exterior finish of the manufactured home and must be adequately maintained.
(4)
All manufactured homes must be supported at a maximum of ten-foot centers around the perimeter of each manufactured home and this blocking must provide sixteen (16) inches by sixteen (16) inches bearing upon the stand.
(5)
Tie-downs and ground anchors must secure all manufactured homes to the ground, as required by the State of Missouri.
c.
Design Standards.
(1)
All manufactured homes must have frontage on a street within the manufactured home park.
(2)
Each manufactured home lot must be provided with two (2) paved off-street parking spaces.
(3)
Each manufactured home lot must be provided with a paved patio area other than a parking space of not less than two hundred (200) square feet.
(4)
Each manufactured home must be provided with a weather-tight container with a tight fitting cover for garbage disposal. The park owner must insure that containers are emptied regularly, at least weekly, and maintained in a useable sanitary condition.
d.
Electrical Connections. Each manufactured home lot must be provided with an electrical source supplying at least 220 volts, in accordance with City electrical codes.
D.
Manufactured Home Residential Design. A manufactured home of residential design shall comply with the following criteria:
1.
Minimum dimensions of twenty-two (22) feet in width and forty (40) feet in length;
2.
The pitch of the roof of the manufactured home has a minimum vertical rise of four (4) feet for each twelve (12) feet of horizontal run and the roof finished with a type of shingle that is commonly used in standard residential construction in the City;
3.
All roof structures provide an eave projection of no less than twelve (12) inches, exclusive of any guttering;
4.
The exterior siding consists of vinyl or metal horizontal lap siding (whose reflectivity does not exceed that of low luster white paint), wood, or hardboard, comparable in composition, appearance and durability to the exterior siding commonly used in standard residential construction in the City;
5.
Is set up in accordance with the recommended installation procedures of the manufacturer and the standards set by the National Conference of States on Building Codes and Standards and published in “Manufactured Home Installations, 1987” (NCS BCS A225.1), and a continuous, permanent masonry foundation or masonry curtain wall, or poured concrete wall, unpierced except for required ventilation and access, is installed under the perimeter of the Residential-Design Manufactured Home;
6.
Stairs, porches, entrance platforms, ramps and other means of entrance and exit to and from the home are installed or constructed in accordance with the standards set by the building code and attached firmly to the primary structure and anchored securely to the ground; and
7.
Has substantially the appearance of an on-site, conventionally built, single-family dwelling.
E.
Group Homes.
1.
Group homes located within residential neighborhoods must maintain an exterior appearance in general conformance with the neighborhood.
2.
Group homes must be located a minimum distance of one thousand (1,000) feet from any other group home, unless this distance requirement is waived by the City Council.



