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Triplex (3 Units, Any Combination)Residential

1727 UNION ST

ALAMEDA, CA 94501
7
Beds
3.5
Baths
3,149 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.
0.12 ac
Lot SizeThe size of the land the home sits on, from county records.
1945
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
14
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,842 (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.$413,197 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$165,134
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$248,063
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$405,096

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.0.12
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(1)

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.

M
Wood Middle SchoolB+
Middle · Grades 6–8 · 1.0 mi
E
Maya Lin SchoolA-
Elementary · Grades KG–5 · 1.0 mi
H
Encinal Jr. & Sr. High School SchoolB+
High · Grades 6–12 · 2.0 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

1727 Union 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 93% of homes in Alameda County
  • Older than 73% 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 area3,149 ft²
SmallerTypical 1,652 ft²Bigger

Bigger than 91% of homes nearby

Lot size0.12 ac
SmallerTypical 0.11 acBigger

Bigger than 57% of homes nearby

Year built1945
OlderTypical 1931Newer

Newer than 58% of homes nearby

How 1727 Union St ranks against every home in each area.
MeasureThis homeCentral AlamedaAlameda 94501Alameda County
Living areabigger than3,149 ft²87% of homes91% of homes93% of homes
Lot sizebigger than0.12 ac60% of homes57% of homes40% of homes
Year builtnewer than194571% of homes58% of homes27% of homes

About 1727 Union St

When did 1727 Union St, Alameda, CA last sell?

1727 Union St, Alameda, CA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 1727 Union St, Alameda, CA?

1727 Union St, Alameda, CA has 7 bedrooms, 3.5 bathrooms, 3,149 square feet of living space and a 0.12-acre lot.

When was 1727 Union St, Alameda, CA built?

1727 Union St, Alameda, CA was built in 1945, making it 81 years old. It is a custom design home. The building has 2 stories.

What schools serve 1727 Union St, Alameda, CA?

1727 Union St, Alameda, CA is assigned to Wood Middle School (middle), rated B+; Maya Lin School (elementary), rated A-; Encinal Jr. & Sr. High School School (high), rated B+. All sit in Alameda City Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 1727 Union St, Alameda, CA compare to other homes in Alameda 94501?

Among the 14,802 homes in Alameda 94501, it is bigger than 91% of them (3,149 ft² against a typical 1,652 ft²), its lot is bigger than 57% of them (0.12 ac against a typical 0.11 ac) and it is newer than 58% of them (1945 against a typical 1931). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 1727 Union St, Alameda, CA?

The 2025 property tax bill for 1727 Union St, Alameda, CA was $8,842. The county assessed it at $413,197.

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