zoneoptics
Loudoun County Unincorporated, Virginia · District

R-4

Single Family Residential R-4 Legacy Zoning District
ResidentialSingle FamilyAll Loudoun County Unincorporated districts0

Dimensional standards

R-4 lot requirementsSTREETFront 25 ftRear 25 ftSide 9 ftMin width 50 ftMIN LOT AREA10,000 sq ftMAX HEIGHT40 ftMAX LOT COVERAGE35%MAX DENSITY4 du/ac
Plan view of the district’s stated lot requirements. Solid line: the property line. Dashed: the setback lines the ordinance imposes; a building must stay inside the tinted envelope. Drawn from the figures extracted below — illustrative, not a survey.

Lot

Minimum lot areaMinimum lot areaThe smallest parcel on which the district allows anything to be built.
10,000 sq ftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.
Minimum lot widthLot widthHow wide a lot must be, usually measured at the front setback line.
50 ft

Density

Maximum density
4 du/acredu/acreDwelling units per acre — the number of homes allowed on each acre of land.

SetbacksSetbackThe distance a building must be held back from a lot line.

FrontSetbackThe distance a building must be held back from a lot line.
25 ft
RearSetbackThe distance a building must be held back from a lot line.
25 ft
SideSetbackThe distance a building must be held back from a lot line.
9 ft

Height & bulk

Maximum heightMaximum heightThe tallest a building may be, given in feet, in storeys, or both — whichever binds first.
40 ft
Maximum lot coverageLot coverageThe share of a lot that buildings may cover, as a percentage.
35%

Uses

Permitted by right2

Conditional / special use1

  • Major floodplain is not permitted to be included in calculating the amount of common open space.

Extracted standards

1 individual requirements pulled out of this section’s prose, each with the sentence it came from.

Other

From the ordinance

The purpose of the R-4 Single Family Residential Legacy Zoning District is to retain existing areas established to provide for single-family detached and single-family attached dwelling units at gross residential parcel densities not to exceed 4 dwelling units per acre in areas served by public water and sewer service...
Section 2.02.05.02