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TownhouseResidential
$739,087$419 / 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 93How 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

1139 BISMARCK LN

ALAMEDA, CA 94502
4
Beds
2.5
Baths
1,766 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.
1,774 ft²
Lot SizeThe size of the land the home sits on, from county records.
1970
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$739K
$684K low$794K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,401 (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.$182,519 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$69,311
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$113,208
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$178,940
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$869,490

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.2 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
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.0.2 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.Townhouse
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.0.04
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
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(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 · 0.9 mi
M
Lincoln Middle SchoolA
Middle · Grades 6–8 · 1.6 mi
H
Alameda High SchoolA
High · Grades 9–12 · 2.3 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

1139 Bismarck Ln 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 91% of homes in Alameda 94502
  • Among the lowest price per square foot in Bay Farm Island
  • Bigger than 85% of homes in Bay Farm Island
  • Has a smaller lot than 96% of homes in Alameda County
  • Older than 77% of homes in Alameda 94502

What homes are worth in Alameda 94502

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

This home
$662K$2.3M

This home is worth more than 9% 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.

Estimated value$739,087
CheaperTypical $1,092,886Pricier

Pricier than 9% of homes nearby

Price per ft²$419
CheaperTypical $638Pricier

Cheaper than almost all homes nearby

Living area1,766 ft²
SmallerTypical 1,701 ft²Bigger

Bigger than 60% of homes nearby

Lot size1,774 ft²
SmallerTypical 4,008 ft²Bigger

Bigger than 20% of homes nearby

Year built1970
OlderTypical 1984Newer

Newer than 23% of homes nearby

How 1139 Bismarck Ln ranks against every home in each area.
MeasureThis homeBay Farm IslandAlameda 94502Alameda County
Estimated valuepricier than$739,08717% of homes9% of homes26% of homes
Price per ft²pricier than$419almost no homesalmost no homes7% of homes
Living areabigger than1,766 ft²85% of homes60% of homes61% of homes
Lot sizebigger than1,774 ft²35% of homes20% of homes4% of homes
Year builtnewer than197048% of homes23% of homes58% of homes

About 1139 Bismarck Ln

How much is 1139 Bismarck Ln, Alameda, CA worth?

The TopHap Estimate for 1139 Bismarck Ln, Alameda, CA is $739,087 as of Sep 24, 2026. The likely range is $684,484 to $793,690. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1139 Bismarck Ln, Alameda, CA last sell?

1139 Bismarck Ln, Alameda, CA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 1139 Bismarck Ln, Alameda, CA?

1139 Bismarck Ln, Alameda, CA has 4 bedrooms, 2.5 bathrooms, 1,766 square feet of living space and a 0.04-acre lot.

When was 1139 Bismarck Ln, Alameda, CA built?

1139 Bismarck Ln, Alameda, CA was built in 1970, making it 56 years old. It is a custom design home. The building has 2 stories.

What schools serve 1139 Bismarck Ln, Alameda, CA?

1139 Bismarck Ln, 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 1139 Bismarck Ln, Alameda, CA compare to other homes in Alameda 94502?

Among the 5,176 homes in Alameda 94502, it is worth more than 9% of them ($739,087 against a typical $1,092,886), its price per square foot is higher than almost none of them ($419 against a typical $638), it is bigger than 60% of them (1,766 ft² against a typical 1,701 ft²), its lot is bigger than 20% of them (1,774 ft² against a typical 4,008 ft²) and it is newer than 23% of them (1970 against a typical 1984). Measured against all of Alameda County, it is worth more than 26% 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 1139 Bismarck Ln, Alameda, CA?

The 2025 property tax bill for 1139 Bismarck Ln, Alameda, CA was $4,401. The county assessed it at $182,519.

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