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Single Family ResidenceResidential
$456,295$413 / 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 $300,000 on Jun 7, 2004

823 21ST ST

OAKLAND, CA 94607
2
Beds
1
Baths
1,105 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.
3,000 ft²
Lot SizeThe size of the land the home sits on, from county records.
1885
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$456K
$419K low$494K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$300,000 · Jun 7, 2004

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,316 (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.$428,041 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$130,512
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$304,529
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$419,512
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$513,540

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyALAMEDA
Lot (acres)The size of the land the home sits on, from county records.0.07
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Wood Shingle
HeatingThe type of heating system in the home.Floor/Wall Furnace
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(6)

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

Foreclosure Filings(2)

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

M
West Oakland Middle SchoolD
Middle · Grades 6–8 · 0.4 mi
H
McClymonds High SchoolD-
High · Grades 9–12 · 0.4 mi
E
Martin Luther King Jr. Elementary SchoolF
Elementary · Grades KG–5 · 0.5 mi

District: Oakland Unified School District

Neighborhood · ZIP 94607These 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.169
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.91
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.422

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.31%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.21%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.5%
PopulationHow many people live in this area.31,205
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,357 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$87,935
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$121,763
Average tempThe average temperature here across a full year.58°F
Annual precipHow much rain and melted snow falls here in a typical year.21 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.78%

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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

823 21st St 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 less than 94% of homes in Alameda County
  • Costs less per square foot than 93% of homes in Alameda County
  • Smaller than 83% of homes in Ralph Bunche
  • Has a smaller lot than 91% of homes in Alameda County
  • Among the oldest homes in Alameda County

What homes are worth in Oakland 94607

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

This home
$244K$859K

This home is worth more than 44% of homes in Oakland 94607.

How it measures up in Oakland 94607

The dot is this home. The mark in the middle is the typical home in Oakland 94607.

Estimated value$456,295
CheaperTypical $482,646Pricier

Pricier than 44% of homes nearby

Price per ft²$413
CheaperTypical $426Pricier

Pricier than 43% of homes nearby

Living area1,105 ft²
SmallerTypical 1,230 ft²Bigger

Bigger than 40% of homes nearby

Lot size3,000 ft²
SmallerTypical 0.34 acBigger

Bigger than 19% of homes nearby

Year built1885
OlderTypical 1989Newer

Newer than 3% of homes nearby

How 823 21st St ranks against every home in each area.
MeasureThis homeRalph BuncheOakland 94607Alameda County
Estimated valuepricier than$456,29532% of homes44% of homes6% of homes
Price per ft²pricier than$41361% of homes43% of homes7% of homes
Living areabigger than1,105 ft²17% of homes40% of homes19% of homes
Lot sizebigger than3,000 ft²27% of homes19% of homes9% of homes
Year builtnewer than18855% of homes3% of homesalmost no homes

About 823 21st St

How much is 823 21st St, Oakland, CA worth?

The TopHap Estimate for 823 21st St, Oakland, CA is $456,295 as of Sep 24, 2026. The likely range is $418,881 to $493,709. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 823 21st St, Oakland, CA last sell?

823 21st St, Oakland, CA last sold on Jun 7, 2004 for $300,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 823 21st St, Oakland, CA?

823 21st St, Oakland, CA has 2 bedrooms, 1 bathrooms, 1,105 square feet of living space and a 0.07-acre lot.

When was 823 21st St, Oakland, CA built?

823 21st St, Oakland, CA was built in 1885, making it 141 years old. The building has 1 story.

What schools serve 823 21st St, Oakland, CA?

823 21st St, Oakland, CA is assigned to West Oakland Middle School (middle), rated D; McClymonds High School (high), rated D-; Martin Luther King Jr. Elementary School (elementary), rated F. All sit in Oakland Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 823 21st St, Oakland, CA compare to other homes in Oakland 94607?

Among the 6,205 homes in Oakland 94607, it is worth more than 44% of them ($456,295 against a typical $482,646), its price per square foot is higher than 43% of them ($413 against a typical $426), it is bigger than 40% of them (1,105 ft² against a typical 1,230 ft²), its lot is bigger than 19% of them (3,000 ft² against a typical 0.34 ac) and it is newer than 3% of them (1885 against a typical 1989). Measured against all of Alameda County, it is worth more than 6% 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 823 21st St, Oakland, CA?

The 2025 property tax bill for 823 21st St, Oakland, CA was $7,316. The county assessed it at $428,041.

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