Article VII, Sec. 94.1-140 through 94.1-155
Dimensional standards
Lot
Density
Height & bulk
Housing
- Two-family
- by_right
- Four-plus family
- by_right
Uses
Permitted by right5
- single-family detached dwelling
- attached single-family dwelling (townhouse, duplex, quadruplex) up to 30% of units
- recreational uses (clubhouse, swimming pool, tennis courts, play fields)
- off-street parking
- accessory uses (as defined in chapter)
Conditional / special use3
- family day care home
- utility service facilities (pumping stations, transformer stations)
- retail convenience store (max 3,000 sq ft, PRD ≥100 units, no gasoline, architectural consistency)
Accessory1
Extracted standards
25 individual requirements pulled out of this section’s prose, each with the sentence it came from.
Density
- Maximum townhouseTownhouseA single-family home sharing side walls with its neighbours, each on its own lot. density8 du/acredu/acreDwelling units per acre — the number of homes allowed on each acre of land.
Density of development shall not exceed eight dwellings per gross acre.
- Maximum units in a group of attached townhousesTownhouseA single-family home sharing side walls with its neighbours, each on its own lot.8 units
The total number of units in a group of attached townhouses shall not exceed eight.
Design
- Architectural compatibility required
All structures within a PRD shall be designed and constructed in a manner that is compatible with the architectural character of the surrounding area and the overall design concept of the PRD as approved in the master site plan.
Height
- Maximum heightMaximum heightThe tallest a building may be, given in feet, in storeys, or both — whichever binds first. same as primary districtZoning districtA mapped area with one set of rules, identified by a code like R-1 or B-2.
The maximum height of any building or structure in a PRD district shall be the same as required in the primary zoning district in which the PRD is located.
Other
- Minimum distance for accessory usesAccessory useA secondary activity customarily incidental to the main use of the lot — a garage, a home office. from adjacent property line50 ft
accessory uses ... are permitted within the PRD, when located at least 50 feet from an adjacent (abutting) property line.
- Developed recreational space as percentage of required open spaceOpen spaceLand a development must leave unbuilt, sometimes required to be usable or planted.30 pct
Developed recreational space shall occupy at least 30 percent of the required open space.
- Maximum accessoryAccessory useA secondary activity customarily incidental to the main use of the lot — a garage, a home office. building area (except garage)100 sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.
No accessory building except for a private garage on any lot shall cover more than 100 square feet.
- Minimum required open spaceOpen spaceLand a development must leave unbuilt, sometimes required to be usable or planted.30 pct
Required open space shall be not less than the greater of the aggregate amount of area resulting from reduction of lot sizes below the minimum area otherwise required; or thirty percent of the total gross area of the PRD.
- Minimum PRD size5 acresacre43,560 square feet — about the size of an American football field without the end zones.
The permitted minimum size of any planned residential development district shall be five contiguous acres.
- Owners' association required for common areas
There shall be established a nonprofit owners' association, corporation, trust, or foundation of all individuals or corporations owning residential property within the planned residential developments to insure the maintenance of open spaces.
- Performance guarantee required
Prior to the approval of any site plan for a PRD, the applicant shall provide a performance guarantee in accordance with the provisions of the subdivision ordinance to assure the completion of all required improvements.
- TownhouseTownhouseA single-family home sharing side walls with its neighbours, each on its own lot. corner side yardYardThe open space left between a building and its lot line — the space a setback creates.25 ft
corner side yards shall be not less than 25 feet.
- Minimum end unit townhouseTownhouseA single-family home sharing side walls with its neighbours, each on its own lot. lot areaMinimum lot areaThe smallest parcel on which the district allows anything to be built.2,320 sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.
End units shall have a lot area of not less than 2,320 square feet.
- Minimum end unit townhouseTownhouseA single-family home sharing side walls with its neighbours, each on its own lot. lot widthLot widthHow wide a lot must be, usually measured at the front setback line.28 ft
End units shall have a width of not less than 28 feet.
- TownhouseTownhouseA single-family home sharing side walls with its neighbours, each on its own lot. front yardYardThe open space left between a building and its lot line — the space a setback creates. (parking area)15 ft
or to 15 feet when fronting on a parking area within a PRD.
- TownhouseTownhouseA single-family home sharing side walls with its neighbours, each on its own lot. front yardYardThe open space left between a building and its lot line — the space a setback creates. (private street)20 ft
Within a PRD where streets and parking areas under the jurisdiction of an 'owners' association,' the front yard may be reduced to 20 feet when fronting on a private street.
- TownhouseTownhouseA single-family home sharing side walls with its neighbours, each on its own lot. front yardYardThe open space left between a building and its lot line — the space a setback creates. (public street)30 ft
Each townhouse lot fronting on a public street shall have a front yard having a depth of not less than 30 feet from the property line or public right-of-way.
- Maximum townhouseTownhouseA single-family home sharing side walls with its neighbours, each on its own lot. lot coverageLot coverageThe share of a lot that buildings may cover, as a percentage.40 pct
All buildings, including accessory buildings, on any lot shall not cover more than 40 percent of the area of such lot.
- Minimum townhouseTownhouseA single-family home sharing side walls with its neighbours, each on its own lot. development acreage1 acresacre43,560 square feet — about the size of an American football field without the end zones.
Each townhouse development shall have a minimum gross acreage of not less than one acre.
- Minimum townhouseTownhouseA single-family home sharing side walls with its neighbours, each on its own lot. lot areaMinimum lot areaThe smallest parcel on which the district allows anything to be built.1,520 sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.
Each townhouse dwelling, together with its accessory buildings, shall be located on a lot having an area of not less than 1,520 square feet, and a front width of not less than 18 feet, except end units, which shall have a lot area of not less than 2,320 square feet and a width of not less than 28 feet.
- Minimum townhouseTownhouseA single-family home sharing side walls with its neighbours, each on its own lot. lot widthLot widthHow wide a lot must be, usually measured at the front setback line.18 ft
front width of not less than 18 feet
- TownhouseTownhouseA single-family home sharing side walls with its neighbours, each on its own lot. rear yardYardThe open space left between a building and its lot line — the space a setback creates.25 ft
Each lot shall have a rear yard no less than 25 feet in depth measured from the rear main building line.
- TownhouseTownhouseA single-family home sharing side walls with its neighbours, each on its own lot. side yardYardThe open space left between a building and its lot line — the space a setback creates. (end residence)10 ft
A side yard not less than ten feet in width shall be provided for each end residence in the building.
- Underground utilities required
Within a PRD, all utilities, including telephone, television cable, and electrical systems, shall be installed underground.
Parking
- Minimum townhouseTownhouseA single-family home sharing side walls with its neighbours, each on its own lot. parking spaces2 spaces/unit
A minimum of two parking spaces per townhouse unit shall be provided.
From the ordinance
This is an overlay district to primary residential zoning districts established for the following purposes: ... Density of development in this district will be taken from the base underlying primary residential district which density may be increased ...
Parking requirements
{
"townhouse": "2 spaces per unit"
}