District of Columbia property record for 1601 23rd St NW, Washington, DC 20008
| Property Type | Government Office, Courthouse |
|---|---|
| Details | 6,459 sqft · built 1911 |
| Lot Size | 0.03 acres (1,307 sqft) |
| Owner | Individual Name on File |
| APN | 2511 0015 |
| Primary APN | 2511 0015 |
|---|
| Stories | 3 Stories |
|---|---|
| Building Area | 6,459 sqft Gross Area |
| Basement Area | 1,853 sqft |
| Year Built | Built 1911 |
|---|---|
| Exterior Material | Brick |
| Construction Type | Brick |
| Lot Area | 1,307 sqft (0.03 acres) |
| Porch | Porch |
| Porch Area | 49 sqft |
| Street Address | 1601 23RD ST NW |
|---|---|
| City | WASHINGTON |
| State | DC |
| Zip | 20008-2809 |
| Property Category | Public Works |
| Property Type | Public Works > Government Office, Courthouse |
| Local Zoning Code | R-3 |
| Legal Description | SQUARE 2511 LOT 0015 NBHD: KALORAMA |
| Legal Subdivision | KALORAMA |
| Legal Block | 2511 |
| Legal Lot Number | 0015 |
| Jurisdiction | DISTRICT OF COLUMBIA DC |
| Township / Civil Division | WASHINGTON |
| Census Block Group | 3 |
| Census Block | 3010 |
| Census Tract | 4100 |
Source: NPS National Register of Historic Places, as of August 1, 2026
| Historic District | Within the Massachusetts Avenue Historic District listed 1974 · 153 contributing resources · NRIS 74002166 |
|---|---|
| Individually Listed | American Revolution Statuary listed 1978 · 14 contributing resources · NRIS 78000256 |
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
1601 23rd St NW, a public works property, is owned and occupied by an individual.
Source: District of Columbia records, as of November 10, 2025
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 1607 23RD ST NW, WASHINGTON, DC 20008-2809 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Jun 8, 2026 |
Source: District of Columbia assessment roll, as of January 1, 2025
| Type | Name |
|---|---|
| Federal District & City | Washington, District of Columbia |
| Unified School District | District of Columbia Public Schools (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | Additional exemption filed | $3,962,180 Land $430,540 Building $3,531,640 | $3,962,180 Land $430,540 Building $3,531,640 |
| 2023 | Additional exemption filed | $3,220,470 Land $422,100 Building $2,798,370 | $3,220,470 Land $422,100 Building $2,798,370 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA has no flood map on file for 1601 23rd St NW; there have been 1 flood claim nearby since 2018.
Source: FEMA National Flood Hazard Layer · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Not on file |
|---|---|
| Nearby Flood Policies | 6 in force |
| Nearby Flood Claims | 1 (2018) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Sep 2018 · rainfall accumulation |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Wildfire risk around 1601 23rd St NW is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 98% of the US |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | Direct burnable vegetation |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | D.C. WATER AND SEWER AUTHORITY serves 632,323 people · EPA ID DC0000002 |
|---|---|
| Water Source | Purchased surface water from WASHINGTON AQUEDUCT DIVISION. |
| Last State Inspection | Dec 2023 |
| Lead | 2 ppb (2026) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 645 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 2,000 |
| AT&T Fixed Wireless | 100 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Astound Broadband, DC Access, Starry, Verizon.
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