District of Columbia property record for 509 O St NW, Washington, DC 20001 · Last verified August 2026
| Property Type | Residential > Multi-Unit > Multi-Family Dwellings |
|---|---|
| Bedrooms | 4 Beds |
| Bathrooms | 4 Baths |
| Architecture Style | Multifamily |
| Year Built | Built 1957 |
| Square Footage | 2,820 sqft Living Area |
| Lot Size | 1,868 sqft (0.043 acres) |
| Last Sale | $10,000 (2000) |
| Tax Bill | $7,442.00 (2025) |
| Primary APN | 0479-0818 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 4 Baths |
| Total Rooms | 10 Rooms |
| Units | 2 Units |
| Building Area | 2,820 sqft Living Area |
| Gross Area | 3,400 sqft Gross Area |
| Basement Area | 580 sqft Basement |
| Stories | 3 Stories |
| Primary Flooring | Wood Flooring |
| Year Built | Built 1920 |
|---|---|
| Effective Year Built | Effective 1957 |
| Architectural Style | Multifamily Style |
| Exterior Material | Brick Exterior |
| Roof Material | Builtup (layered Asphalt) Roof |
| Lot Area | 1,868 sqft (0.043 acres) |
| Cooling System | None Cooling |
|---|
| Street Address | 509 O ST NW |
|---|---|
| City | WASHINGTON |
| State | DC |
| Zip | 20001-3423 |
| Property Usage | Residential Property Usage |
| Type | Residential > Multi-Unit > Multi-Family Dwellings |
| Legal Description | SQUARE 0479 LOT 0818 NBHD: OLD CITY 2 |
| Legal Subdivision | OLD CITY 2 |
| Legal Block | 479 |
| Legal Lot Number | 818 |
| Jurisdiction | DISTRICT OF COLUMBIA DC |
| Minor Civil Division | WASHINGTON |
| Census Blockgroup | 3 |
| Census Block | 3009 |
| Census Tract | 4801 |
Source: District of Columbia records · APN 0479-0818
Assessment roll updated October 29, 2025 · Last verified August 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individuals Owners |
|---|---|
| Mailing Address | 505 O ST NW, 1, WASHINGTON, DC 20001-3438 |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Known Transactions |
|
| Deed Doc Number | 200015324 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | DISTRICT OF COLUMBIA DC |
| Property Address | 509 O ST NW, WASHINGTON, DC 20001-3423 |
| Transaction Type | Mortgage |
| Record Updated | Nov 11, 2025 |
| Name | Verified Name |
|---|
| Document Number | 0000073975 |
|---|---|
| Date | Jul 12, 2022 |
| Instrument | 2022073975 |
| Name | LAFAYETTE FEDERAL CREDIT UNION |
|---|
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 359 Months |
| Due | Jun 01, 2052 |
| Rate Type | Fixed Rate |
|---|
Source: District of Columbia records · Assessment roll updated October 29, 2025 · Last verified August 2026
| Type | Name |
|---|---|
| Federal District & City | Washington, District of Columbia |
| Unified School District | District of Columbia Public Schools (PK - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $7,442.00 (+1.78%) | $875,580 (+2.15%) Land $594,140 Building $281,440 | $875,580 (+2.15%) Land $594,140 Building $281,440 |
| 2023 | $7,312.00 | $857,160 Land $583,490 Building $273,670 | $857,160 Land $583,490 Building $273,670 |
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