District of Columbia property record for 3520 Massachusetts Ave NW, Washington, DC 20007 · Last verified April 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 4 Beds |
| Bathrooms | 3.5 Baths |
| Year Built | Built 2017 |
| Square Footage | 2,233 sqft Living Area |
| Lot Size | 7,800 sqft (0.179 acres) |
| Garage | Carport |
| Last Sale | $1,225,000 (2012) |
| Tax Bill | $17,634.00 (2025) |
| Primary APN | 1938-0033 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Partial Baths | 1 Partial Baths |
| Total Rooms | 11 Rooms |
| Building Area | 2,233 sqft Living Area |
| Gross Area | 4,161 sqft Gross Area |
| 1st Floor | 2,233 sqft 1st Floor |
| Basement Area | 1,928 sqft Basement |
| Stories | 1 Stories |
| Primary Flooring | Wood Flooring |
| Fireplace | Fireplace |
| Fireplaces | 1 Fireplaces |
| Year Built | Built 1924 |
|---|---|
| Effective Year Built | Effective 2017 |
| Exterior Material | Brick Exterior |
| Construction Type | Masonry/Concrete Masonry Units (CMUs) Construction |
| Roof Construction | Gable Roof Construction |
| Roof Material | Slate Roof |
| Lot Area | 7,800 sqft (0.179 acres) |
| Garage Type | Carport Garage |
| Carport | Carport |
| Cooling System | Central Cooling |
|---|---|
| Heating System | HVAC Heating |
| Street Address | 3520 MASSACHUSETTS AVE NW |
|---|---|
| City | WASHINGTON |
| State | DC |
| Zip | 20007-1447 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | SQUARE 1938 LOT 0033 NBHD: OBSERVATORY CIRCLE |
| Legal Subdivision | OBSERVATORY CIRCLE |
| Legal Block | 1938 |
| Legal Lot Number | 33 |
| Jurisdiction | DISTRICT OF COLUMBIA DC |
| Minor Civil Division | WASHINGTON |
| Census Blockgroup | 1 |
| Census Block | 1007 |
| Census Tract | 400 |
Source: District of Columbia records · APN 1938-0033
Assessment roll updated October 29, 2025 · Last verified April 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Owner on File |
|---|---|
| Mailing Address | 3520 MASSACHUSETTS AVE NW, WASHINGTON, DC 20007-1447 |
| Owner Type | Owner is a Company |
| Deed Names | Verified Name on Deed |
|---|---|
| Known Transactions |
|
| Deed Doc Number | 201286946 |
| Record Refreshed | Jun 08, 2026 |
Source: District of Columbia records · Assessment roll updated October 29, 2025 · Last verified April 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 | $17,634.00 (+22.29%) | $2,074,610 (+24.11%) Land $1,187,780 Building $886,830 | $2,074,610 (+24.11%) Land $1,187,780 Building $886,830 |
| 2023 | $14,420.00 | $1,671,550 Land $1,138,960 Building $532,590 | $1,671,550 Land $1,138,960 Building $532,590 |
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