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CondominiumResidential
$680,093$603 / 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 96How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $800,000 on Mar 18, 2021

1831 CALIFORNIA ST NW APT 20

WASHINGTON, DC 20009
Building report
2
Beds
1
Baths
1,128 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.
622 ft²
Lot SizeThe size of the land the home sits on, from county records.
1905
Year BuiltThe year the home was originally built, according to county records.
4
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$680K
$650K low$710K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$800,000 · Mar 18, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,991 (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.$692,670 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$207,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$484,870
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$689,240
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$692,670

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Condominium
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.1977
Lot (acres)The size of the land the home sits on, from county records.0.01
HeatingThe type of heating system in the home.None
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Open
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(2)

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
Oyster-Adams Bilingual School
Elementary · Grades PK–8 · 0.8 mi
H
Jackson-Reed High SchoolA
High · Grades 9–12 · 2.9 mi

District: District of Columbia Public Schools

Neighborhood · ZIP 20009These 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.117
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.92
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.33

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.34%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.4%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.2.0%
PopulationHow many people live in this area.54,451
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.42,372 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$130,098
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$168,293
Average tempThe average temperature here across a full year.56°F
Annual precipHow much rain and melted snow falls here in a typical year.43 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

1831 California St Nw Apt 20 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.

  • Worth more than 65% of homes in Adams Morgan
  • Costs less per square foot than 75% of homes in Washington 20009
  • Has a smaller lot than 74% of homes in District of Columbia County
  • Older than 90% of homes in Adams Morgan

What homes are worth in Washington 20009

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

This home
$237K$2.1M

This home is worth more than 64% of homes in Washington 20009.

How it measures up in Washington 20009

The dot is this home. The mark in the middle is the typical home in Washington 20009.

Estimated value$680,093
CheaperTypical $560,349Pricier

Pricier than 64% of homes nearby

Price per ft²$603
CheaperTypical $677Pricier

Pricier than 25% of homes nearby

Living area1,128 ft²
SmallerTypical 921 ft²Bigger

Bigger than 62% of homes nearby

Lot size622 ft²
SmallerTypical 436 ft²Bigger

Bigger than 65% of homes nearby

Year built1905
OlderTypical 1915Newer

Newer than 25% of homes nearby

How 1831 California St Nw Apt 20 ranks against every home in each area.
MeasureThis homeAdams MorganWashington 20009District of Columbia County
Estimated valuepricier than$680,09365% of homes64% of homes60% of homes
Price per ft²pricier than$60330% of homes25% of homes62% of homes
Living areabigger than1,128 ft²63% of homes62% of homes40% of homes
Lot sizebigger than622 ft²67% of homes65% of homes26% of homes
Year builtnewer than190510% of homes25% of homes10% of homes

About 1831 California St Nw Apt 20

How much is 1831 California St Nw Apt 20, Washington, DC worth?

The TopHap Estimate for 1831 California St Nw Apt 20, Washington, DC is $680,093 as of Oct 21, 2026. The likely range is $650,475 to $709,711. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1831 California St Nw Apt 20, Washington, DC last sell?

1831 California St Nw Apt 20, Washington, DC last sold on Mar 18, 2021 for $800,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 1831 California St Nw Apt 20, Washington, DC?

1831 California St Nw Apt 20, Washington, DC has 2 bedrooms, 1 bathrooms, 1,128 square feet of living space and a 0.01-acre lot.

When was 1831 California St Nw Apt 20, Washington, DC built?

1831 California St Nw Apt 20, Washington, DC was built in 1905, making it 121 years old.

What schools serve 1831 California St Nw Apt 20, Washington, DC?

1831 California St Nw Apt 20, Washington, DC is assigned to Oyster-Adams Bilingual School (elementary); Jackson-Reed High School (high), rated A. All sit in District of Columbia Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 1831 California St Nw Apt 20, Washington, DC compare to other homes in Washington 20009?

Among the 14,473 homes in Washington 20009, it is worth more than 64% of them ($680,093 against a typical $560,349), its price per square foot is higher than 25% of them ($603 against a typical $677), it is bigger than 62% of them (1,128 ft² against a typical 921 ft²), its lot is bigger than 65% of them (622 ft² against a typical 436 ft²) and it is newer than 25% of them (1905 against a typical 1915). Measured against all of District of Columbia County, it is worth more than 60% 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 1831 California St Nw Apt 20, Washington, DC?

The 2025 property tax bill for 1831 California St Nw Apt 20, Washington, DC was $4,991. The county assessed it at $692,670.

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