Article X, Sec. 90-350 to 90-358
Dimensional standards
Extracted standards
15 individual requirements pulled out of this section’s prose, each with the sentence it came from.
Floodplain
- FloodplainFloodplainLand expected to flood at a stated frequency, where building carries extra conditions. non-qualifying
Wetlands and floodplains (FEMA 100-year floodplain)
Grading
- Slope impact analysis
Site grading (proposed finished grades at minimum five feet contour intervals); to depict the extent of land disturbing activities that (1) will impact slopes that are greater than 30 percent and (2) require clear-cutting of existing tree cover.
Other
- Corner lot increase5 ft
For corner lots, lot width and side yards shall be increased by five feet in addition to the prescribed dimensions.
- Culs-de-sac avoided
Culs-de-sac should be avoided except in cases where severe terrain limitations restrict their use.
Lot coverage ratio guideline applies to maximum percentage of building coverage. Lot areas for townhouses and multifamily units exclude areas for required off-street parking.
- Maximum slope for qualifying area30 pct
Terrain with slopes in excess of 30 percent
- Minimum open spaceOpen spaceLand a development must leave unbuilt, sometimes required to be usable or planted. for projects 15 acresacre43,560 square feet — about the size of an American football field without the end zones. or greater15 pct
a minimum of 15 percent of the total qualifying area of the TND shall be allocated to these areas.
- Rear alleys encouraged
Rear alleys that access off-street parking for individual lots are encouraged but not required.
- Rear setbackSetbackThe distance a building must be held back from a lot line. for accessoryAccessory useA secondary activity customarily incidental to the main use of the lot — a garage, a home office. units with alley
Rear setback applies to principal structure only. Garages and/or accessory units may have a zero setback when an alley is present.
- VDOT street standards
Community streets should be designed to VDOT standards and dedicated for public use.
- Water and sewer assessment
A projection of planned project's infrastructure demands on public water and sewer.
Parking
- Parking impact study required
Parking impact study to assess parking area and loading requirements.
Signage
No billboards shall be allowed within the TND.
- Maximum cantilever sign area10 sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.
Cantilever signs shall be mounted perpendicular to the building face and shall not exceed ten square feet.
- Sign types
With the exception of the economic development sub-district, all TND district signs shall be either wall signs or cantilever signs.
From the ordinance
TND district area requirements, permitted uses, density, lot types, civic space, and application requirements.