City of Baltimore
Baltimore City Code

Table 8-401 Detached and Semi-Detached Residential Districts – Bulk and Yard Regulations

Categories Specifications
(Per District)
R-1A R-1B R-1C R-1D R-1E R-1 R-2 R-3 R-4
Minimum Lot Area
Community ... Open-Space Garden or Farm 2 acres None None None None None None None None
Dwelling: Detached or Semi-Detached 2 acres 1 acre 21,780 sq.ft. 14,520 sq.ft. 9,000 sq.ft. 7,300 sq.ft. 5,000 sq.ft. 5,000 sq.ft. 3,000 sq.ft.
Park or Playground 2 acres None None None None None None None None
Urban Agriculture 2 acres None None None None None None None None
All Other Uses 2 acres 1 acre 20,000 sq.ft. 20,000 sq.ft. 20,000 sq.ft. 20,000 sq.ft. 20,000 sq.ft. 5,000 sq.ft. 3,000 sq.ft.
Minimum Lot Width
Dwelling: Semi-Detached 100 feet 75 feet 75 feet 60 feet 60 feet 50 feet 30 feet 45 feet 30 feet
All Other Uses 100 feet 75 feet 75 feet 60 feet 60 feet 50 feet 50 feet 45 feet 45 feet
Maximum Building Height
All Uses 35 feet 35 feet 35 feet 35 feet 35 feet 35 feet 35 feet 35 feet 35 feet
Maximum Lot Coverage
All Uses 35% 35% 35% 35% 35% 40% 40% 45% 45%
Maximum Impervious Surface
All Uses 40% 40% 40% 40% 40% 50% 50% 50% 50%
Minimum Front Yard
All Uses 1 40 feet 40 feet 40 feet 40 feet 30 feet 30 feet 30 feet 25 feet 25 feet
Minimum Interior- Side Yard
Dwelling: Detached 15 feet 15 feet 10 feet 10 feet 5 feet 5 feet 5 feet 5 feet 5 feet
Dwelling: Semi-Detached 2 15 feet 15 feet 10 feet 10 feet 5 feet 5 feet 10 feet 5 feet 10 feet
All Other Uses 15 feet 15 feet 10 feet 10 feet 5 feet 5 feet 10 feet 5 feet 10 feet
Minimum Corner- Side Yard
All Uses 15 feet 15 feet 10 feet 10 feet 10 feet 10 feet 10 feet 10 feet 10 feet
Minimum Rear Yard
All Uses 40 feet 40 feet 40 feet 30 feet 30 feet 30 feet 30 feet 25 feet 25 feet

1 These minimums per district apply if less than 50% of the lots on the blockface have been developed. If, however, 50% or more of the lots on the blockface have been developed, the applicable minimum, for all of these districts, is the lesser of (i) the average of the front-yard depths of the improved lots or (ii) 40 feet.

2 For semi-detached dwellings, interior-side yards are required only along the interior-side lot line where the party wall between dwellings is not located.

(Ord. 25-063 Section 1; Ord. 17-015; Ord. 16-581.)