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Row HouseResidential
$698,440$497 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 92How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026
Last sold for $740,000 on Sep 27, 2023

521 LONGFELLOW ST NW

WASHINGTON, DC 20011
3
Beds
4 / 1
Baths
1,404 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
1,583 ft²
Lot SizeThe size of the land the home sits on, from county records.
1923
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
10
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$698K
$641K low$756K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$740,000 · Sep 27, 2023

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,690 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$787,030 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$437,030
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$350,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$814,950
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$787,030

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Row House
CountyDistrict Of Columbia
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.2012
Lot (acres)The size of the land the home sits on, from county records.0.04
RoofThe main material covering the roof, such as asphalt shingle or tile.Metal
HeatingThe type of heating system in the home.Forced Air
CoolingThe type of cooling or air conditioning in the home.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 382 ft²

Transaction History(7)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Truesdell Elementary SchoolB-
Elementary · Grades EE–5 · 0.3 mi
M
MacFarland Middle SchoolB+
Middle · Grades 6–8 · 1.1 mi
H
Roosevelt High SchoolC
High · Grades 9–12 · 1.1 mi

District: District of Columbia Public Schools

Neighborhood · ZIP 20011These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.

CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.69
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.94
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.39

Index scale: 100 = US average (tick). Lower is better.

Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.92%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.25%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.10%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.7%
PopulationHow many people live in this area.68,016
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.13,150 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$111,669
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$147,497
Average tempThe average temperature here across a full year.55°F
Annual precipHow much rain and melted snow falls here in a typical year.44 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.56%

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Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

How this home compares

521 Longfellow St Nw measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Costs more per square foot than 68% of homes in Washington 20011
  • Has a smaller lot than 74% of homes in Washington 20011
  • Older than 71% of homes in Washington 20011

What homes are worth in Washington 20011

Each bar is how many homes fall in that price range. The marker is this home.

This home
$222K$1.4M

This home is worth more than 63% of homes in Washington 20011.

How it measures up in Washington 20011

The dot is this home. The mark in the middle is the typical home in Washington 20011.

Estimated value$698,440
CheaperTypical $619,034Pricier

Pricier than 63% of homes nearby

Price per ft²$497
CheaperTypical $442Pricier

Pricier than 68% of homes nearby

Living area1,404 ft²
SmallerTypical 1,400 ft²Bigger

Bigger than 51% of homes nearby

Lot size1,583 ft²
SmallerTypical 2,134 ft²Bigger

Bigger than 26% of homes nearby

Year built1923
OlderTypical 1929Newer

Newer than 29% of homes nearby

How 521 Longfellow St Nw ranks against every home in each area.
MeasureThis homeBrightwood Park / Crestwood / Petworth / 16th Street HeightsWashington 20011District of Columbia County
Estimated valuepricier than$698,44048% of homes63% of homes61% of homes
Price per ft²pricier than$49755% of homes68% of homes44% of homes
Living areabigger than1,404 ft²42% of homes51% of homes59% of homes
Lot sizebigger than1,583 ft²33% of homes26% of homes50% of homes
Year builtnewer than192343% of homes29% of homes29% of homes

About 521 Longfellow St Nw

How much is 521 Longfellow St Nw, Washington, DC worth?

The TopHap Estimate for 521 Longfellow St Nw, Washington, DC is $698,440 as of Sep 24, 2026. The likely range is $641,009 to $755,871. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 521 Longfellow St Nw, Washington, DC last sell?

521 Longfellow St Nw, Washington, DC last sold on Sep 27, 2023 for $740,000, according to the county's recorded deed. TopHap holds 6 recorded sales for this parcel.

How big is 521 Longfellow St Nw, Washington, DC?

521 Longfellow St Nw, Washington, DC has 3 bedrooms, 4 bathrooms, 1,404 square feet of living space and a 0.04-acre lot.

When was 521 Longfellow St Nw, Washington, DC built?

521 Longfellow St Nw, Washington, DC was built in 1923, making it 103 years old. The building has 2 stories.

What schools serve 521 Longfellow St Nw, Washington, DC?

521 Longfellow St Nw, Washington, DC is assigned to Truesdell Elementary School (elementary), rated B-; MacFarland Middle School (middle), rated B+; Roosevelt High School (high), rated C. All sit in District of Columbia Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 521 Longfellow St Nw, Washington, DC compare to other homes in Washington 20011?

Among the 17,663 homes in Washington 20011, it is worth more than 63% of them ($698,440 against a typical $619,034), its price per square foot is higher than 68% of them ($497 against a typical $442), it is bigger than 51% of them (1,404 ft² against a typical 1,400 ft²), its lot is bigger than 26% of them (1,583 ft² against a typical 2,134 ft²) and it is newer than 29% of them (1923 against a typical 1929). Measured against all of District of Columbia County, it is worth more than 61% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 521 Longfellow St Nw, Washington, DC?

The 2025 property tax bill for 521 Longfellow St Nw, Washington, DC was $6,690. The county assessed it at $787,030.

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