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Quadplex (4 Units, Any Combination)Residential
Last sold for $815,000 on Apr 15, 2015

871 21ST ST

OAKLAND, CA 94607
10
Beds
4
Baths
3,279 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.
0.11 ac
Lot SizeThe size of the land the home sits on, from county records.
1880
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
23
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$815,000 · Apr 15, 2015

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$27,830 (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.$999,058 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$299,717
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$699,341
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$979,474

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Quadplex (4 Units, Any Combination)
CountyALAMEDA
Lot (acres)The size of the land the home sits on, from county records.0.12
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(14)

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.

H
McClymonds High SchoolD-
High · Grades 9–12 · 0.4 mi
M
West Oakland Middle SchoolF
Middle · Grades 6–8 · 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

871 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.

  • Bigger than 95% of homes in Oakland 94607
  • Has a smaller lot than 71% of homes in Alameda County
  • Among the oldest 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.

Living area3,279 ft²
SmallerTypical 1,231 ft²Bigger

Bigger than 95% of homes nearby

Lot size0.11 ac
SmallerTypical 0.31 acBigger

Bigger than 36% of homes nearby

Year built1880
OlderTypical 1989Newer

Older than almost all homes nearby

How 871 21st St ranks against every home in each area.
MeasureThis homeRalph BuncheOakland 94607Alameda County
Living areabigger than3,279 ft²91% of homes95% of homes93% of homes
Lot sizebigger than0.11 ac70% of homes36% of homes29% of homes
Year builtnewer than1880almost no homesalmost no homesalmost no homes

About 871 21st St

When did 871 21st St, Oakland, CA last sell?

871 21st St, Oakland, CA last sold on Apr 15, 2015 for $815,000, according to the county's recorded deed. TopHap holds 8 recorded sales for this parcel.

How big is 871 21st St, Oakland, CA?

871 21st St, Oakland, CA has 10 bedrooms, 4 bathrooms, 3,279 square feet of living space and a 0.12-acre lot.

When was 871 21st St, Oakland, CA built?

871 21st St, Oakland, CA was built in 1880, making it 146 years old. The building has 2 stories.

What schools serve 871 21st St, Oakland, CA?

871 21st St, Oakland, CA is assigned to McClymonds High School (high), rated D-; West Oakland Middle School (middle), rated F; 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 871 21st St, Oakland, CA compare to other homes in Oakland 94607?

Among the 6,206 homes in Oakland 94607, it is bigger than 95% of them (3,279 ft² against a typical 1,231 ft²), its lot is bigger than 36% of them (0.11 ac against a typical 0.31 ac) and it is newer than almost none of them (1880 against a typical 1989). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 871 21st St, Oakland, CA?

The 2025 property tax bill for 871 21st St, Oakland, CA was $27,830. The county assessed it at $999,058.

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