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Single Family ResidenceResidential
$893,076$705 / 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

850 SAINT MARYS AVE

SAN LEANDRO, CA 94577
3
Beds
1
Baths
1,266 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.
4,200 ft²
Lot SizeThe size of the land the home sits on, from county records.
1932
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$893K
$837K low$949K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,983 (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.$333,887 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$102,266
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$238,621
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$327,204
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$785,160

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.1934
Lot (acres)The size of the land the home sits on, from county records.0.10
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.Composition Shingle
HeatingThe type of heating system in the home.Gravity
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(3)

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
Roosevelt Elementary SchoolA-
Elementary · Grades KG–5 · 0.4 mi
M
Bancroft Middle SchoolC-
Middle · Grades 6–8 · 0.5 mi
H
San Leandro High SchoolC-
High · Grades 9–12 · 1.0 mi

District: San Leandro Unified School District

Neighborhood · ZIP 94577These 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.86
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.93
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.585

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.26%
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.1.5%
PopulationHow many people live in this area.48,861
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.5,612 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$106,335
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$133,543
Average tempThe average temperature here across a full year.58°F
Annual precipHow much rain and melted snow falls here in a typical year.21 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

850 Saint Marys Ave 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 84% of homes in Esudillo Estates
  • Costs more per square foot than 90% of homes in San Leandro 94577
  • Smaller than 90% of homes in Esudillo Estates
  • Has a smaller lot than 87% of homes in Esudillo Estates
  • Older than 81% of homes in San Leandro 94577

What homes are worth in San Leandro 94577

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

This home
$421K$1.4M

This home is worth more than 68% of homes in San Leandro 94577.

How it measures up in San Leandro 94577

The dot is this home. The mark in the middle is the typical home in San Leandro 94577.

Estimated value$893,076
CheaperTypical $787,203Pricier

Pricier than 68% of homes nearby

Price per ft²$705
CheaperTypical $554Pricier

Pricier than 90% of homes nearby

Living area1,266 ft²
SmallerTypical 1,430 ft²Bigger

Bigger than 38% of homes nearby

Lot size4,200 ft²
SmallerTypical 0.13 acBigger

Bigger than 15% of homes nearby

Year built1932
OlderTypical 1946Newer

Newer than 19% of homes nearby

How 850 Saint Marys Ave ranks against every home in each area.
MeasureThis homeEsudillo EstatesSan Leandro 94577Alameda County
Estimated valuepricier than$893,07616% of homes68% of homes38% of homes
Price per ft²pricier than$70588% of homes90% of homes59% of homes
Living areabigger than1,266 ft²10% of homes38% of homes31% of homes
Lot sizebigger than4,200 ft²13% of homes15% of homes22% of homes
Year builtnewer than193228% of homes19% of homes21% of homes

About 850 Saint Marys Ave

How much is 850 Saint Marys Ave, San Leandro, CA worth?

The TopHap Estimate for 850 Saint Marys Ave, San Leandro, CA is $893,076 as of Aug 30, 2026. The likely range is $837,083 to $949,069. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 850 Saint Marys Ave, San Leandro, CA last sell?

850 Saint Marys Ave, San Leandro, CA last sold on Jan 1, 1900, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 850 Saint Marys Ave, San Leandro, CA?

850 Saint Marys Ave, San Leandro, CA has 3 bedrooms, 1 bathrooms, 1,266 square feet of living space and a 0.10-acre lot.

When was 850 Saint Marys Ave, San Leandro, CA built?

850 Saint Marys Ave, San Leandro, CA was built in 1932, making it 94 years old. The building has 1 story.

What schools serve 850 Saint Marys Ave, San Leandro, CA?

850 Saint Marys Ave, San Leandro, CA is assigned to Roosevelt Elementary School (elementary), rated A-; Bancroft Middle School (middle), rated C-; San Leandro High School (high), rated C-. All sit in San Leandro Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 850 Saint Marys Ave, San Leandro, CA compare to other homes in San Leandro 94577?

Among the 12,251 homes in San Leandro 94577, it is worth more than 68% of them ($893,076 against a typical $787,203), its price per square foot is higher than 90% of them ($705 against a typical $554), it is bigger than 38% of them (1,266 ft² against a typical 1,430 ft²), its lot is bigger than 15% of them (4,200 ft² against a typical 0.13 ac) and it is newer than 19% of them (1932 against a typical 1946). Measured against all of Alameda County, it is worth more than 38% 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 850 Saint Marys Ave, San Leandro, CA?

The 2025 property tax bill for 850 Saint Marys Ave, San Leandro, CA was $4,983. The county assessed it at $333,887.

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