D.C. Mun. Regs. tit. 11-G, § 203
203.1 Except as provided elsewhere in this title, the maximum permitted height of buildings or structures, not including a penthouse or rooftop structure, and the maximum number of stories shall be as set forth in section.
203.2 The maximum permitted height of buildings or structures and number of stories, except as provided in Subtitle G §§ 203.3 through 203.6, shall be as set forth in the following table:
TABLE G § 203.2: MAXIMUM HEIGHT AND NUMBER OF STORIES
| Zones | Maximum Height, Not Including Penthouse or Rooftop Structure (ft.) | Maximum Number of Stories |
|---|---|---|
| MU-1 | 65 70 (IZ) | No Limit |
| MU-2 | 90 | No Limit |
| MU-3A | 40 | 3 |
| MU-3B | 50 | 4 |
| MU-4 | 50 | No Limit |
| MU-5A | 65 70 (IZ) | No Limit |
| MU-5B | 75 | No Limit |
| MU-6A MU-6B | 90 100 (IZ) | No Limit |
| MU-7A MU-7B | 65 | No Limit |
| MU-8A MU-8B | 70 | No Limit |
| MU-9A MU-9B | 90 100 (IZ) | No Limit |
| MU-10 | 90 100 (IZ) | No Limit |
| MU-11 | 40 | No Limit |
| MU-12 | 45 50 (IZ) | No Limit |
| MU-13 | 60 80 (IZ) | No Limit |
| MU-14 | 90 100 (IZ) | No Limit |
| MU-15 | 110 | No Limit |
203.3 In the MU-10 zone on Square 175, the maximum permitted building height, not including a penthouse or rooftop structure, shall be limited to sixty feet (60 ft.) for the first forty feet (40 ft.) of horizontal depth, measured from the lot line on the south side of the public alley that abuts the rear of Lots 24, 25, 26, 27, 28, and 29.
203.4 In any of the MU-11 zones, a building or structure located on, in, or over the water; or a watercraft, including a floating home shall have a maximum height of twenty-five feet (25 ft.), not including a penthouse or rooftop structure. For the purposes of this subsection, the maximum height shall be measured from the mean high-water level along the shore directly in front of the building, structure, or watercraft to the highest point of the building or structure, not including sailboat masts.
203.5 In any of the MU-15 zones, a building or other structure may be erected to a height not exceeding one hundred-thirty feet (130 ft.), not including a penthouse or rooftop structure; provided, that the building or other structure shall face or abut a street not less than one hundred-ten feet (110 ft.) wide between building lines.
203.6 In any of the MU-1, MU-2, MU-10, or MU-12 through MU-14 zones, a public recreation and community center may not be erected to a height exceeding forty-five feet (45 ft.), not including a penthouse or rooftop structure.
SOURCE: Final Rulemaking published at 63 DCR 2447, 2944 (March 4, 2016 – Part 2); as amended by Final Rulemaking published at 68 DCR 013834 (December 24, 2021); as amended by Final Rulemaking published at 70 DCR 011297 (August 25, 2023); as amended by Final Rulemaking published at 73 DCR 002309 (February 20, 2026).