The purposes of the R-1-A zone are to:

  • Protect quiet residential areas now developed with detached dwellings and adjoining vacant areas likely to be developed for those purposes; and
  • Stabilize the residential areas and to promote a suitable environment for family life.

The R-1-A zone is intended to provide areas predominantly developed with detached houses on large lots.


Development Standards
Height (ft.)1/
Minimum Lot Width (ft.)/
Area (sq. ft.)
Lot Occupancy Front Setback Rear Yard (ft.) Side Yard (ft.) Pervious Surface (min.) Zoning Regulation Reference
R-1-A 40 75 60% (Places of Worship) A front setback shall be provided within the range of existing front setbacks of all structures within an R-1-A zone on the same side of the street in the block where the building is proposed. 25 8 50% Subtitle D, Chapter 3
3 7,500 40% (All Other Structures)

Use Permissions Parking Inclusionary Zoning
Subtitle U, Chapter 2 Subtitle C, Chapter 7 Subtitle C, Chapter 10
R- Use Group A

1 Institutional buildings or structures may be erected to a height not exceeding 90 ft., not including the penthouse, provided that the building or structure shall be removed from all lot lines of its lot a distance of not less than 1 ft. for each foot of height in excess of that authorized in the zone in which it is located.