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Light Industrial (10% Improved Office Space; Machine Shop)Industrial
Last sold for $1,198,000 on Dec 14, 2023

3490 UNION ST

FREMONT, CA 94538
0
Baths
65,026 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.
3.77 ac
Lot SizeThe size of the land the home sits on, from county records.
1928
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
28
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.$1,198,000 · Dec 14, 2023

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$72,750 (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.$5,900,302 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$4,782,650
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$1,117,652
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$5,784,615

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.8 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.minimal

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Light Industrial (10% Improved Office Space; Machine Shop)
CountyALAMEDA
ConstructionThe main material the home's frame and walls are built from.Masonry/Concrete Masonry Units (Cmus)
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
J. Haley Durham Elementary SchoolA
Elementary · Grades KG–5 · 0.8 mi
M
G. M. Walters Middle SchoolA
Middle · Grades 6–8 · 1.6 mi
H
Kennedy High SchoolB+
High · Grades 9–12 · 1.7 mi

District: Fremont Unified School District

Neighborhood · ZIP 94538These 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.65
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.87
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.620

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.95%
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.5.3%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.6%
PopulationHow many people live in this area.67,745
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,952 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$137,410
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$160,880
Average tempThe average temperature here across a full year.59°F
Annual precipHow much rain and melted snow falls here in a typical year.16 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

3490 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.

  • Among the largest homes in Irvington
  • Among the largest lots in Irvington
  • Among the oldest homes in Fremont 94538

How it measures up in Fremont 94538

The dot is this home. The mark in the middle is the typical home in Fremont 94538.

Living area65,026 ft²
SmallerTypical 1,380 ft²Bigger

Bigger than almost all homes nearby

Lot size3.77 ac
SmallerTypical 0.14 acBigger

Bigger than 94% of homes nearby

Year built1928
OlderTypical 1963Newer

Older than almost all homes nearby

How 3490 Union St ranks against every home in each area.
MeasureThis homeIrvingtonFremont 94538Alameda County
Living areabigger than65,026 ft²almost all homesalmost all homesalmost all homes
Lot sizebigger than3.77 acalmost all homes94% of homes97% of homes
Year builtnewer than1928almost no homesalmost no homes19% of homes

About 3490 Union St

When did 3490 Union St, Fremont, CA last sell?

3490 Union St, Fremont, CA last sold on Dec 14, 2023 for $1,198,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

When was 3490 Union St, Fremont, CA built?

3490 Union St, Fremont, CA was built in 1928, making it 98 years old. The building has 1 story.

What schools serve 3490 Union St, Fremont, CA?

3490 Union St, Fremont, CA is assigned to J. Haley Durham Elementary School (elementary), rated A; G. M. Walters Middle School (middle), rated A; Kennedy High School (high), rated B+. All sit in Fremont Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3490 Union St, Fremont, CA compare to other homes in Fremont 94538?

Among the 15,977 homes in Fremont 94538, it is bigger than almost all of them (65,026 ft² against a typical 1,380 ft²), its lot is bigger than 94% of them (3.77 ac against a typical 0.14 ac) and it is newer than almost none of them (1928 against a typical 1963). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 3490 Union St, Fremont, CA?

The 2025 property tax bill for 3490 Union St, Fremont, CA was $72,750. The county assessed it at $5,900,302.

More homes on Union St

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Assigned schools

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