D.C. Mun. Regs. tit. 11-D, § 1101 – Height

Subtitle A

Chapter 1

Chapter 2

Chapter 3

1003

Chapter 4

1003

Chapter 5

1003

Chapter 6

1003

Chapter 7

1003

Chapter 8

Chapter 9

1003

1101

HEIGHT

1101.1

Except as provided in Subtitle D §§ 203.3 through 203.6, in the R-1B/GT and R-3/GT zones, the maximum permitted height and number of stories for buildings shall be as follows:

Zoning Regulations of 2016:

Residential House (R) Zones

(a) Thirty-five feet (35 ft.) and three (3) stories, not including a penthouse or rooftop structure; or

(b) Forty feet (40 ft.), not including a penthouse or rooftop structure, only if a property adjacent on either side has a building height of forty feet (40 ft.) or greater.

1101.2 In the R-1B/GT and R-3/GT zones, the maximum height of a building shall be measured to the highest point of the roof or a parapet which is not a required firewall.

1101.3 In R-1B/GT and R-3/GT zones, a two (2) or more story addition to a principal building which has an existing second story side yard shall not exceed the vertical plane of that yard for the length of the second story addition.

1101.4 In R-1B/GT and R-3/GT zones, any parapet, pergola, railing, or similar rooftop structure, or penthouse shall not exceed the permitted building height by more than four feet (4 ft.).

SOURCE: Final Rulemaking published at 70 DCR 011297 (August 25, 2023).