Capitol Hill Historic District Site of Southeast Branch Library Modernize and expand the current facility
Addition at 403 7th St SE, Washington
DC Department of Buildings permit B2304249: issued Apr 23, 2024 for addition work at 403 7th St SE. Capitol Hill Historic District Site of Southeast Branch Library Modernize and expand the current facility including: Maintaining and rehabilitating the historic existing upper floor and interior entrance stair. Removing the existing lower floor and expanding the building underground. The floor-to-floor height between the existing upper and lower floors is only 10 . The new ground floor will be 14 below the existing upper floor. A third floor will be constructed below grade, a portion of which will be a vault projecting into the public parking space on South Carolina Ave. A new, 3-story addition will infill the open space on site between the west end of the library and the existing properties to the west. The addition will provide vertical circulation elements connecting all floors, public restrooms, spaces for building systems, and, at the ground floor, a new universally accessible public entrance. The vestibule for this entrance projects into public space. New systems, and the associated utility services, will be provided for the entire building. New landscaping and hard scaping will be provided.
- Permit number
- B2304249
- Issued
- Type of work
- Addition
- Status
- Finished
- Reported cost
- Not listed
- ZIP code
- 20003
- City's category
- Construction, addition alteration repair
- City's status
- Completed
- Source
- DC Department of Buildings permit data (this record)
Type of work and status are our own standard labels, so permits compare across cities. The city's wording is in the "City's category" and "City's status" rows. We show costs under $100 as not listed, because filers often enter $0 or $1 when the city doesn't require a cost.
All permits at 403 7th St SE, and what's permitted nearby
DC Department of Buildings updated its data Oct 13, 2026. We checked it Oct 14, 03:47 UTC. See the city's official records (District of Columbia, CC BY 4.0).
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