(A) Regulations pertaining to Mixed Use (MU) Districts.
(1) Intent. The Mixed-Use District (MU) is established to provide opportunities for compatible and sustainable re-development where underutilized commercial properties already exist. The existing auto-oriented street, lot, and building designs can create uncomfortable pedestrian environments; however, with careful site planning these areas will allow a greater number of residents to walk or bike to businesses and services with an interconnected network of streets and sidewalks. Dominant uses in this district are residential, retail and office. The Mixed-Use District is expected to serve Columbus residents as well as persons who travel from surrounding communities. The development pattern in this district acknowledges the role of the automobile, with parking and access provided to ensure safety for the motoring public. Development standards in the Mixed-Use District ensure the creation of a pleasant auto-oriented environment while enabling a compatible transition to uses in adjacent districts. This District is available for rezoning only with the consent of the property owner(s).
(2) Residential density limits.
(a) Single Family Detached: 7 unit/acre;
(b) Single Family Attached: 17 units/acre; and
(c) Multifamily: 28 units/acre.
(3) Dimensional standards.
Minimum lot size | Minimum lot width | Build-to-line | Minimum rear yard setback | Minimum side yard setback |
6,000 sq. ft. | 60 feet | 16 feet | 12 feet | 0 |
(Unless a greater standard is otherwise required)
(B) Regulations pertaining to Traditional Neighborhood Districts (TND).
(1) Intent. The Traditional Neighborhood Development District (TND) provides for the development of new neighborhoods and the revitalization or extension of existing neighborhoods. These neighborhoods are structured upon a fine network of interconnecting pedestrian oriented streets and other public spaces. Traditional Neighborhood Developments (TND's) provide a mixture of housing types and prices, prominently sited civic or community building(s), stores/offices/workplaces, and churches to provide a balanced mix of activities. A Traditional Neighborhood Development (TND) has a recognizable center and clearly defined edges; optimum size is a quarter mile from center to edge. A TND is urban in form, is typically an extension of the existing developed area of the Town, and has an overall residential density of up to 16 dwelling units per acre. TND districts should have a significant portion of land dedicated to open spaces. This District is available for rezoning only with the consent of the property owner(s).
(2) Residential density limits.
(a) Single-family detached: seven units/acre;
(b) Single-family attached: 12 units/acre; and
(c) Multifamily development standards.
1. The multi-family development shall not exceed a total of seventy-two (72) dwelling units.
2. The maximum permitted density for the multi-family development shall be 14 1/2 units per acre.
3. The permitted building and lot types for the multi-family development in a single-family area shall be the detached house and the attached house building and lot types.
4. All parking for the multi-family development shall be located behind the building. The parking area shall be screened from adjacent properties and from the street with a screening device.
5. The buildings in the multi-family development shall be architecturally compatible with single family structures on the street on which the multi-family building is proposed. Elements that shall be incorporated into the design of the multi-family building to ensure architectural compatibility are:
a. The multi-family building shall be constructed of building materials similar to those used on single family structures on the street.
b. The roof pitch of the multi-family building shall be the same as that of the single-family structures on the street.
c. The fenestration of the multi-family building by location and size of windows and doors shall be similar to that of the single-family homes on the street.
d. Color renderings of the proposed building must be submitted with the application to ensure architectural compatibility.
6. No multi-family building shall be located closer than 48 feet to an existing multi-family building or development. The distance shall be measured along centerline of streets from the edge of the property proposed for development to the closest edge of the property on which the existing multi-family building or development is located.
(3) TND general requirements.
(a) Along existing streets, new buildings shall respect the general spacing of structures, building mass and scale, and street frontage relationships of existing buildings.
1. New buildings which adhere to the scale, massing, volume, spacing, and setback of existing buildings along fronting streets exhibit demonstrable compatibility.
2. New buildings which exceed the scale and volume of existing buildings may demonstrate compatibility by varying the massing of buildings to reduce perceived scale and volume.
(b) On new streets, allowable building and lot types will establish the development pattern.
(c) A master plan in compliance with Traditional Neighborhood Development standards shall be provided with the zoning permit submittal for a general district TND. The master plan shall include a topographic survey and shall show the location and hierarchy of streets and public open spaces, location of residential, commercial, and civic building lots, street sections and/or plans, a master sign program, an outline of any additional regulatory intentions, phasing, and any other information, including building elevations, which may be required to evaluate the interior pedestrian environment and conditions at project edges.
(d) Minimum Development Size: eight acres.
(e) Maximum Development Size: none.
(4) TND design requirements.
(a) Neighborhood form.
1. The area of the TND shall be divided into blocks, streets, lots, and open space.
2. Similar land uses shall generally front across each street. Dissimilar categories shall generally abut at rear lot lines. Corner lots which front on streets of dissimilar use shall generally observe the setback established on each fronting street.
(b) Streets, alleys and blocks.
1. Public streets shall provide access to all tracts and lots.
2. Streets and alleys shall, wherever practicable, terminate at other streets within the neighborhood and connect to existing and projected streets outside the development.
3. Cul-de-sacs shall not exceed 250 feet in length, must be accessed from a street providing internal or external connectivity, shall be permanently terminated by a vehicular turnaround, and are listed only where topography makes a street connection impracticable
4. Vehicular turnarounds of various configurations are acceptable so long as emergency access is adequately provided.
5. Pedestrian connections should be provided as extensions of terminating streets where not precluded by topography or other physical constraints.
6. The average perimeter of all blocks within the TND should not exceed 1,350 feet. No block face should have a length greater than 500 feet without a dedicated alley or pathway providing through access.
7. A continuous network of rear alleys shall provide vehicular access to lots 49 feet or less in width.
8. Utilities may run along alleys provided that a permanent public access and utility easement is recorded for the full length of alley being used for utilities or public services such as garbage collection.
9. TND streets shall be organized according to a hierarchy based on function, size, capacity, and design speed; streets and rights-of-way are therefore expected to differ in dimension. The proposed hierarchy of streets shall be indicated on the submitted site plan. Each street type in a TND shall be separately detailed. An array of elements that are combined to meet the purposes of TND neighborhood streets: building placement line, optional utility allocation, sidewalk, planting strip, curb and gutter, optional parallel parking, and travel lane(s). Alternative methods of assembling the required street elements will be considered to allow neighborhood street designs that are most appropriate to setting and use.
10. To prevent the buildup of vehicular speed, disperse traffic flow, and create a sense of visual enclosure, long uninterrupted segments of straight streets should be avoided. Methods to achieve this interruption include:
(i) A street can be interrupted by intersections designed to calm the speed and disperse the flow of traffic and terminate vistas with a significant feature (building, park, natural feature);
(ii) A street can be terminated with a public monument, specifically designed building facade, or a gateway to the ensuing space;
(iii) Perceived street length can be reduced by a noticeable street curve where the outside edge of the curve is bounded by a building or other vertical elements that hug the curve and deflect the view; and
(iv) Other traffic calming configurations are acceptable so long as emergency access is adequately provided.
(c) Buildings and lots.
1. All lots shall share a frontage line with a street or square; lots fronting a square shall be provided rear alley access.
2. Consistent build-to lines shall be established along all streets and public space frontages; build-to lines determine the width and ratio of enclosure for each public street or space. A minimum percentage build-out at the build-to line shall be established on the plan along all streets and public square frontages.
3. Large-scale, single use facilities (conference spaces, theaters, athletic facilities, etc.) shall generally occur behind or above smaller scale uses of pedestrian orientation.
(d) Open space. The provision and design of open space shall comply with the requirements set forth herein.
(e) Parking, landscaping and buffers shall comply with the requirements set forth herein.
District
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Minimum Lot Area (Square Feet) (1)
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Residential Density
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Minimum Lot Width at Building Line (Feet) | Minimum Yard Setback Requirements (Feet)
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Max. Height (Feet)
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Minimum Land Area (1) Per Dwelling Unit (Square Feet)
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Maximum Number (4) Dwelling Units Per Acre
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Front Yard (whichever is greater)
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Sideyards (2)
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Rear Yard
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From Right- of-Way | From Centerline
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District
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Minimum Lot Area (Square Feet) (1)
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Residential Density
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Minimum Lot Width at Building Line (Feet) | Minimum Yard Setback Requirements (Feet)
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Max. Height (Feet)
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Minimum Land Area (1) Per Dwelling Unit (Square Feet)
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Maximum Number (4) Dwelling Units Per Acre
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Front Yard (whichever is greater)
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Sideyards (2)
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Rear Yard
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From Right- of-Way | From Centerline
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Residential Estate (RE) | 87,120 | 87,120 | 0.5 | 125 | 45 | 90 | 20 | 30 | 45 |
Low Density Residential (R-1) | 20,000 (no water or sewer) | For first unit: 20,000 (no water or sewer) | 4 | 85 | 30 | 60 | 10 | 20 | 45 |
15,000 (water only)
| 15,000 (water only)
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10,000 (water and sewer)
| 10,000 (water and sewer)
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Plus: 11,000 each additional unit
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Medium Density Community Residential (R-2) | 20,000 (no water or sewer) | For First unit: 20,000 (no water or sewer) | 4 | 85 | 20 | 50 | 10 | 20 | 45 |
15,000 (water only)
| 15,000 (water only)
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10,000 (water and sewer)
| 10,000 (water and sewer)
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Plus: 11,000 each additional unit
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Central Business District (CBD) | None | For first unit: 5,000 sq. ft. | 8 | 20 | 5 (3) | - | - | - | 36 |
Plus: 5,500 each additional unit
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Highway Commercial (HC) | 20,000 (no water or sewer) | For first unit: 20,000 (no water or sewer) | 8 | 50 | 20 | 50 | 10 | 10 | 50 |
15,000 (water only)
| 15,000 (water only)
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10,000 (water and sewer)
| 10,000 (water and sewer)
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Plus: 5,500 each additional unit
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Industrial District (IND) | Same as HC | N/A | N/A | 80 | 30 | 60 | 10 | 20 | 50 |
Public Service District (PD) |
Same as HC | N/A | N/A | 80 | 30 | 60 | 10 | 20 | 50 |
(1) The minimum lot area for lots not served by public water and/or sewer shall be subject to approval by the Polk County Health Department to ensure proper operation of septic tanks and wells. In no case, however, shall minimum lot area be less than specified in this table. | |||||||||
(2) On all corner lots, a 15-foot side yard setback is required except in the CBD, where a five-foot side yard setback is required. | |||||||||
(3) In the CBD, where adjacent buildings have front yard setbacks less than five feet, the minimum front setback may be equivalent to the adjacent properties. | |||||||||
(4) Regulations pertaining to mobile home parks are contained in Chapter 150 | |||||||||
(Ord., Art. IX, passed - -)