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Single Family ResidenceResidential
$2,455,252$883 / 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 94How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026

45185 ONONDAGA DR

FREMONT, CA 94539
0
Baths
2,780 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.
0.18 ac
Lot SizeThe size of the land the home sits on, from county records.
1979
Year BuiltThe year the home was originally built, according to county records.

Valuation

$2.5M
$2.3M low$2.6M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,113 (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.$637,163 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$347,608
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$296,555
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$624,534
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$2,185,200

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
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.1980
Lot (acres)The size of the land the home sits on, from county records.0.18
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Wood Shingle
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
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.

E
Fred E. Weibel Elementary SchoolA+
Elementary · Grades KG–5 · 0.2 mi
H
Irvington High SchoolA+
High · Grades 9–12 · 2.4 mi
M
John M. Horner Middle SchoolA
Middle · Grades 6–8 · 2.5 mi

District: Fremont Unified School District

Neighborhood · ZIP 94539These 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.25
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 100.683

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.34%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.5%
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.52,775
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,599 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$190,911
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$222,193
Average tempThe average temperature here across a full year.59°F
Annual precipHow much rain and melted snow falls here in a typical year.19 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

45185 Onondaga 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.

  • Worth more than 96% of homes in Alameda County
  • Costs less per square foot than 85% of homes in Weibel
  • Bigger than 89% of homes in Alameda County
  • Has a bigger lot than 69% of homes in Alameda County
  • Newer than 68% of homes in Alameda County

What homes are worth in Fremont 94539

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

This home
$574K$4.3M

This home is worth more than 66% of homes in Fremont 94539.

How it measures up in Fremont 94539

The dot is this home. The mark in the middle is the typical home in Fremont 94539.

Estimated value$2,455,252
CheaperTypical $2,072,653Pricier

Pricier than 66% of homes nearby

Price per ft²$883
CheaperTypical $984Pricier

Pricier than 32% of homes nearby

Living area2,780 ft²
SmallerTypical 2,019 ft²Bigger

Bigger than 78% of homes nearby

Lot size0.18 ac
SmallerTypical 0.18 acBigger

Bigger than 46% of homes nearby

Year built1979
OlderTypical 1980Newer

Newer than 50% of homes nearby

How 45185 Onondaga Dr ranks against every home in each area.
MeasureThis homeWeibelFremont 94539Alameda County
Estimated valuepricier than$2,455,25281% of homes66% of homes96% of homes
Price per ft²pricier than$88315% of homes32% of homes83% of homes
Living areabigger than2,780 ft²85% of homes78% of homes89% of homes
Lot sizebigger than0.18 ac39% of homes46% of homes69% of homes
Year builtnewer than197967% of homes50% of homes68% of homes

About 45185 Onondaga Dr

How much is 45185 Onondaga Dr, Fremont, CA worth?

The TopHap Estimate for 45185 Onondaga Dr, Fremont, CA is $2,455,252 as of Aug 30, 2026. The likely range is $2,311,645 to $2,598,859. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 45185 Onondaga Dr, Fremont, CA last sell?

45185 Onondaga Dr, Fremont, CA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 45185 Onondaga Dr, Fremont, CA?

45185 Onondaga Dr, Fremont, CA has 2,780 square feet of living space and a 0.18-acre lot.

When was 45185 Onondaga Dr, Fremont, CA built?

45185 Onondaga Dr, Fremont, CA was built in 1979, making it 47 years old.

What schools serve 45185 Onondaga Dr, Fremont, CA?

45185 Onondaga Dr, Fremont, CA is assigned to Fred E. Weibel Elementary School (elementary), rated A+; Irvington High School (high), rated A+; John M. Horner Middle School (middle), rated A. All sit in Fremont Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 45185 Onondaga Dr, Fremont, CA compare to other homes in Fremont 94539?

Among the 17,322 homes in Fremont 94539, it is worth more than 66% of them ($2,455,252 against a typical $2,072,653), its price per square foot is higher than 32% of them ($883 against a typical $984), it is bigger than 78% of them (2,780 ft² against a typical 2,019 ft²), its lot is bigger than 46% of them (0.18 ac against a typical 0.18 ac) and it is newer than 50% of them (1979 against a typical 1980). Measured against all of Alameda County, it is worth more than 96% 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 45185 Onondaga Dr, Fremont, CA?

The 2025 property tax bill for 45185 Onondaga Dr, Fremont, CA was $8,113. The county assessed it at $637,163.

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