# Building permits in Washington 20057 21 permits in the last 90 days. The newest, Sep 25: Electrical permit, no description from the city, at 1501 Tondorf Rd NW. | Date | Address | Type | Work | Cost | Permit | |---|---|---|---|---|---| | Sep 25, 2026 | [1501 Tondorf Rd NW](https://nearbypermits.com/washington-dc/address/1501-tondorf-rd-nw/) | Electrical | | Not listed | [E2613329](https://nearbypermits.com/washington-dc/permit/E2613329/) | | Sep 22, 2026 | [3700 O St NW](https://nearbypermits.com/washington-dc/address/3700-o-st-nw/) | Electrical | | Not listed | [E2613169](https://nearbypermits.com/washington-dc/permit/E2613169/) | | Sep 18, 2026 | [3700 O St NW](https://nearbypermits.com/washington-dc/address/3700-o-st-nw/) | Plumbing | | Not listed | [P2612012](https://nearbypermits.com/washington-dc/permit/P2612012/) | | Sep 10, 2026 | [3700 O St NW](https://nearbypermits.com/washington-dc/address/3700-o-st-nw/) | Other | | Not listed | [BCIV2500047-EXT-2](https://nearbypermits.com/washington-dc/permit/BCIV2500047-EXT-2/) | | Sep 10, 2026 | [3700 O St NW](https://nearbypermits.com/washington-dc/address/3700-o-st-nw/) | Other | | Not listed | [B2402433-EXT-1](https://nearbypermits.com/washington-dc/permit/B2402433-EXT-1/) | | Sep 10, 2026 | [3700 O St NW](https://nearbypermits.com/washington-dc/address/3700-o-st-nw/) | Other | | Not listed | [B2402242-EXT-1](https://nearbypermits.com/washington-dc/permit/B2402242-EXT-1/) | | Sep 10, 2026 | [3700 O St NW](https://nearbypermits.com/washington-dc/address/3700-o-st-nw/) | Other | | Not listed | [B2307259-EXT-3](https://nearbypermits.com/washington-dc/permit/B2307259-EXT-3/) | | Sep 1, 2026 | [3700 O St NW](https://nearbypermits.com/washington-dc/address/3700-o-st-nw/) | Alteration or repair | Cfa / h this submission is a permit revision to b2308341. The revision updates the design to reflect updated routing for hot water, chilled water and domestic hot water piping. | Not listed | [B2607336](https://nearbypermits.com/washington-dc/permit/B2607336/) | | Aug 5, 2026 | [3700 O St NW](https://nearbypermits.com/washington-dc/address/3700-o-st-nw/) | Alteration or repair | Historic/cfa revision #1 to b2510005 - renovation to conference center bar, restaurant and back of the house kitchen. Net zero cost change due to value engineering in permit revision scope. No change in use or occupancy. | Not listed | [B2605170](https://nearbypermits.com/washington-dc/permit/B2605170/) | | Jul 24, 2026 | [3869 Canal Road NW](https://nearbypermits.com/washington-dc/address/3869-canal-road-nw/) | Plumbing | This soil boring is for the installation of soil nails necessary for the construction of the Potomac River Tunnel and combined sewer overflow drop shaft located on Georgetown University property along the entrance of Canal Road NW. Georgetown University has provided approval of the proposed construc | Not listed | [SH2600029](https://nearbypermits.com/washington-dc/permit/SH2600029/) | | Jul 22, 2026 | [3700 O St NW](https://nearbypermits.com/washington-dc/address/3700-o-st-nw/) | Other | | Not listed | [BCIV2200134-EXT-2](https://nearbypermits.com/washington-dc/permit/BCIV2200134-EXT-2/) | | Jul 22, 2026 | [3700 O St NW](https://nearbypermits.com/washington-dc/address/3700-o-st-nw/) | Other | | Not listed | [B2308454-EXT-2](https://nearbypermits.com/washington-dc/permit/B2308454-EXT-2/) | | Jul 22, 2026 | [3700 O St NW](https://nearbypermits.com/washington-dc/address/3700-o-st-nw/) | Other | | Not listed | [B2308220-EXT-3](https://nearbypermits.com/washington-dc/permit/B2308220-EXT-3/) | | Jul 22, 2026 | [3700 O St NW](https://nearbypermits.com/washington-dc/address/3700-o-st-nw/) | Other | | Not listed | [B2307592-EXT-3](https://nearbypermits.com/washington-dc/permit/B2307592-EXT-3/) | | Jul 17, 2026 | [3700 O St NW](https://nearbypermits.com/washington-dc/address/3700-o-st-nw/) | Electrical | | Not listed | [E2610979](https://nearbypermits.com/washington-dc/permit/E2610979/) | | Jul 16, 2026 | [3700 O St NW](https://nearbypermits.com/washington-dc/address/3700-o-st-nw/) | Alteration or repair | Historic/cfa revision #1 to b2509709 - alterations of levels 1 thru 5 of public areas and guestrooms floors. Value engineering modifications. Net zero cost change due to value engineering in permit revision scope. No change in use or load. | Not listed | [B2605168](https://nearbypermits.com/washington-dc/permit/B2605168/) | | Jul 13, 2026 | [3700 O St NW](https://nearbypermits.com/washington-dc/address/3700-o-st-nw/) | Plumbing | | Not listed | [P2609713](https://nearbypermits.com/washington-dc/permit/P2609713/) | | Jul 13, 2026 | [3700 O St NW](https://nearbypermits.com/washington-dc/address/3700-o-st-nw/) | Mechanical (HVAC) | | Not listed | [M2603867](https://nearbypermits.com/washington-dc/permit/M2603867/) | | Jul 8, 2026 | [3700 O St NW](https://nearbypermits.com/washington-dc/address/3700-o-st-nw/) | Plumbing | | Not listed | [P2609487](https://nearbypermits.com/washington-dc/permit/P2609487/) | | Jul 8, 2026 | [3770 Old North Way NW](https://nearbypermits.com/washington-dc/address/3770-old-north-way-nw/) | Electrical | | Not listed | [E2610647](https://nearbypermits.com/washington-dc/permit/E2610647/) | | Jul 8, 2026 | [3700 O St NW](https://nearbypermits.com/washington-dc/address/3700-o-st-nw/) | Alteration or repair | Georgetown University CFA McNeir Auditorium Renovation - Interior renovation of McNeir Hall, restore windows, new interior storm windows, new MEP, Fire Protection systems and interior finishes. No Change in Use for current COO B151335, but a new COO will be obtained for clarification of floors and s | Not listed | [B2603601](https://nearbypermits.com/washington-dc/permit/B2603601/) | | Jun 29, 2026 | [3700 O St NW](https://nearbypermits.com/washington-dc/address/3700-o-st-nw/) | Other | CFA / H Removal of one (1) 120-gallon aboveground storage tank (AST) | Not listed | [UT2600038](https://nearbypermits.com/washington-dc/permit/UT2600038/) | | Jun 29, 2026 | [3779 Library Walk NW](https://nearbypermits.com/washington-dc/address/3779-library-walk-nw/) | Other | In the Georgetown Historic District In the Commission of Fine Arts jurisdiction area Temporary Geotechnical Soil Borings. Number of Borings: 2. Diameter of Boreholes: 8 inches. Depth of Borings: 30 ft. Drilling Method: 3.25 inch HSA. Abandonment Method: Installing temporary PVC pipe in 2 borings to | Not listed | [SB2600145](https://nearbypermits.com/washington-dc/permit/SB2600145/) | | Jun 24, 2026 | [3700 O St NW](https://nearbypermits.com/washington-dc/address/3700-o-st-nw/) | Electrical | | Not listed | [E2610193](https://nearbypermits.com/washington-dc/permit/E2610193/) | | Jun 23, 2026 | [3700 O St NW](https://nearbypermits.com/washington-dc/address/3700-o-st-nw/) | Fire systems | Georgetown Historic District Replacement of building sprinkler system with upgraded sprinkler valves and boxes, replacement of existing sprinkler heads, and installation of 2-hour fire-rated wall enclosures and hatches on the first, second, third, and fourth floors. Minor repair to finishes to suppo | Not listed | [B2605209](https://nearbypermits.com/washington-dc/permit/B2605209/) | More: https://nearbypermits.com/washington-dc/zip/20057/?page=2 --- Source: DC Department of Buildings permit data (https://opendata.dc.gov/datasets/7296e6392349498bb6ba6ba3db836644_18), CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Checked 2026-10-03 12:18 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/