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Single Family ResidenceResidential
$783,974$482 / 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 95How 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

15518 ARGONNE ST

SAN LEANDRO, CA 94579
0
Baths
1,627 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.
1980
Year BuiltThe year the home was originally built, according to county records.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$784K
$742K low$826K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,820 (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.$270,836 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$121,686
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$156,150
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$265,388
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$857,610

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.1981
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(2)

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.

H
Arroyo High SchoolB
High · Grades 9–12 · 0.5 mi
M
Washington Manor Middle SchoolC
Middle · Grades 6–8 · 0.6 mi
E
Bay Elementary SchoolB
Elementary · Grades KG–5 · 0.6 mi

District: San Lorenzo Unified School District

Neighborhood · ZIP 94579These 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.55
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 100.555

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.98%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.23%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.6%
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.21,577
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.5,388 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$89,526
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$114,894
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

15518 Argonne 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.

  • Worth more than 70% of homes in Washington Manor
  • Costs less per square foot than 85% of homes in Alameda County
  • Bigger than 80% of homes in Washington Manor
  • Has a smaller lot than 95% of homes in Washington Manor
  • Newer than 97% of homes in Washington Manor

What homes are worth in San Leandro 94579

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

This home
$465K$1.2M

This home is worth more than 58% of homes in San Leandro 94579.

How it measures up in San Leandro 94579

The dot is this home. The mark in the middle is the typical home in San Leandro 94579.

Estimated value$783,974
CheaperTypical $757,818Pricier

Pricier than 58% of homes nearby

Price per ft²$482
CheaperTypical $542Pricier

Pricier than 28% of homes nearby

Living area1,627 ft²
SmallerTypical 1,383 ft²Bigger

Bigger than 71% of homes nearby

Lot size0.12 ac
SmallerTypical 0.12 acBigger

Bigger than 15% of homes nearby

Year built1980
OlderTypical 1953Newer

Newer than 82% of homes nearby

How 15518 Argonne St ranks against every home in each area.
MeasureThis homeWashington ManorSan Leandro 94579Alameda County
Estimated valuepricier than$783,97470% of homes58% of homes31% of homes
Price per ft²pricier than$48224% of homes28% of homes15% of homes
Living areabigger than1,627 ft²80% of homes71% of homes54% of homes
Lot sizebigger than0.12 ac5% of homes15% of homes33% of homes
Year builtnewer than198097% of homes82% of homes68% of homes

About 15518 Argonne St

How much is 15518 Argonne St, San Leandro, CA worth?

The TopHap Estimate for 15518 Argonne St, San Leandro, CA is $783,974 as of Sep 24, 2026. The likely range is $742,266 to $825,682. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 15518 Argonne St, San Leandro, CA last sell?

15518 Argonne St, San Leandro, CA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 15518 Argonne St, San Leandro, CA?

15518 Argonne St, San Leandro, CA has 1,627 square feet of living space and a 0.12-acre lot.

When was 15518 Argonne St, San Leandro, CA built?

15518 Argonne St, San Leandro, CA was built in 1980, making it 46 years old.

What schools serve 15518 Argonne St, San Leandro, CA?

15518 Argonne St, San Leandro, CA is assigned to Arroyo High School (high), rated B; Washington Manor Middle School (middle), rated C; Bay Elementary School (elementary), rated B. All sit in San Lorenzo Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 15518 Argonne St, San Leandro, CA compare to other homes in San Leandro 94579?

Among the 6,156 homes in San Leandro 94579, it is worth more than 58% of them ($783,974 against a typical $757,818), its price per square foot is higher than 28% of them ($482 against a typical $542), it is bigger than 71% of them (1,627 ft² against a typical 1,383 ft²), its lot is bigger than 15% of them (0.12 ac against a typical 0.12 ac) and it is newer than 82% of them (1980 against a typical 1953). Measured against all of Alameda County, it is worth more than 31% 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 15518 Argonne St, San Leandro, CA?

The 2025 property tax bill for 15518 Argonne St, San Leandro, CA was $3,820. The county assessed it at $270,836.

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