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Triplex (3 Units, Any Combination)Residential
Last sold for $998,000 on Feb 6, 2026

840 OAK ST

ALAMEDA, CA 94501
5
Beds
3
Baths
1,885 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.
2,795 ft²
Lot SizeThe size of the land the home sits on, from county records.
1908
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

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$998,000 · Feb 6, 2026

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$12,382 (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.$811,780 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$348,445
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$470,335
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$795,730

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Triplex (3 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Custom Design
CountyALAMEDA
Lot (acres)The size of the land the home sits on, from county records.0.06
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(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(3)

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

H
Alameda High SchoolA+
High · Grades 9–12 · 0.4 mi
E
Love Elementary SchoolA
Elementary · Grades KG–5 · 0.8 mi
M
Wood Middle SchoolB
Middle · Grades 6–8 · 0.8 mi

District: Alameda City Unified School District

Neighborhood · ZIP 94501These 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.124
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.88
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.409

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.35%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.8%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.61,491
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.5,332 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$122,273
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$153,309
Average tempThe average temperature here across a full year.58°F
Annual precipHow much rain and melted snow falls here in a typical year.20 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

840 Oak 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 67% of homes in East End
  • Has a smaller lot than 92% of homes in Alameda 94501
  • Older than 97% of homes in Alameda County

How it measures up in Alameda 94501

The dot is this home. The mark in the middle is the typical home in Alameda 94501.

Living area1,885 ft²
SmallerTypical 1,653 ft²Bigger

Bigger than 61% of homes nearby

Lot size2,795 ft²
SmallerTypical 0.11 acBigger

Bigger than 8% of homes nearby

Year built1908
OlderTypical 1933Newer

Newer than 22% of homes nearby

How 840 Oak St ranks against every home in each area.
MeasureThis homeEast EndAlameda 94501Alameda County
Living areabigger than1,885 ft²67% of homes61% of homes66% of homes
Lot sizebigger than2,795 ft²9% of homes8% of homes9% of homes
Year builtnewer than190827% of homes22% of homes3% of homes

About 840 Oak St

When did 840 Oak St, Alameda, CA last sell?

840 Oak St, Alameda, CA last sold on Feb 6, 2026 for $998,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 840 Oak St, Alameda, CA?

840 Oak St, Alameda, CA has 5 bedrooms, 3 bathrooms, 1,885 square feet of living space and a 0.06-acre lot.

When was 840 Oak St, Alameda, CA built?

840 Oak St, Alameda, CA was built in 1908, making it 118 years old. It is a custom design home. The building has 2 stories.

What schools serve 840 Oak St, Alameda, CA?

840 Oak St, Alameda, CA is assigned to Alameda High School (high), rated A+; Love Elementary School (elementary), rated A; Wood Middle School (middle), rated B. All sit in Alameda City Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 840 Oak St, Alameda, CA compare to other homes in Alameda 94501?

Among the 14,796 homes in Alameda 94501, it is bigger than 61% of them (1,885 ft² against a typical 1,653 ft²), its lot is bigger than 8% of them (2,795 ft² against a typical 0.11 ac) and it is newer than 22% of them (1908 against a typical 1933). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 840 Oak St, Alameda, CA?

The 2025 property tax bill for 840 Oak St, Alameda, CA was $12,382. The county assessed it at $811,780.

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