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Duplex (2 Units, Any Combination)Residential
Last sold for $918,500 on Oct 30, 2015

820 ISLAND DR

ALAMEDA, CA 94502
7
Beds
3
Baths
2,664 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.
0.15 ac
Lot SizeThe size of the land the home sits on, from county records.
1963
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
11
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$918,500 · Oct 30, 2015

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$16,431 (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.$1,109,033 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$332,710
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$776,323
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,087,291

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.84 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.1 percent flood zone

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Duplex (2 Units, Any Combination)
CountyALAMEDA
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.1964
Lot (acres)The size of the land the home sits on, from county records.0.15
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(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
Amelia Earhart SchoolA-
Elementary · Grades KG–5 · 0.5 mi
M
Lincoln Middle SchoolA+
Middle · Grades 6–8 · 1.1 mi
H
Alameda High SchoolA+
High · Grades 9–12 · 1.9 mi

District: Alameda City Unified School District

Neighborhood · ZIP 94502These 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.43
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.90
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.379

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.45%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.8%
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.15,069
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,016 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$164,486
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$194,499
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

820 Island Dr 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.

  • Among the largest homes in Bay Farm Island
  • Has a bigger lot than 94% of homes in Bay Farm Island
  • Older than 94% of homes in Alameda 94502

How it measures up in Alameda 94502

The dot is this home. The mark in the middle is the typical home in Alameda 94502.

Living area2,664 ft²
SmallerTypical 1,702 ft²Bigger

Bigger than 95% of homes nearby

Lot size0.15 ac
SmallerTypical 4,008 ft²Bigger

Bigger than 92% of homes nearby

Year built1963
OlderTypical 1984Newer

Newer than 6% of homes nearby

How 820 Island Dr ranks against every home in each area.
MeasureThis homeBay Farm IslandAlameda 94502Alameda County
Living areabigger than2,664 ft²almost all homes95% of homes87% of homes
Lot sizebigger than0.15 ac94% of homes92% of homes57% of homes
Year builtnewer than196312% of homes6% of homes49% of homes

About 820 Island Dr

When did 820 Island Dr, Alameda, CA last sell?

820 Island Dr, Alameda, CA last sold on Oct 30, 2015 for $918,500, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 820 Island Dr, Alameda, CA?

820 Island Dr, Alameda, CA has 7 bedrooms, 3 bathrooms, 2,664 square feet of living space and a 0.15-acre lot.

When was 820 Island Dr, Alameda, CA built?

820 Island Dr, Alameda, CA was built in 1963, making it 63 years old. The building has 2 stories.

What schools serve 820 Island Dr, Alameda, CA?

820 Island Dr, Alameda, CA is assigned to Amelia Earhart School (elementary), rated A-; Lincoln Middle School (middle), rated A+; Alameda High School (high), rated A+. All sit in Alameda City Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 820 Island Dr, Alameda, CA compare to other homes in Alameda 94502?

Among the 5,176 homes in Alameda 94502, it is bigger than 95% of them (2,664 ft² against a typical 1,702 ft²), its lot is bigger than 92% of them (0.15 ac against a typical 4,008 ft²) and it is newer than 6% of them (1963 against a typical 1984). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 820 Island Dr, Alameda, CA?

The 2025 property tax bill for 820 Island Dr, Alameda, CA was $16,431. The county assessed it at $1,109,033.

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Assigned schools

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