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Homes (Retired, Handicap, Rest, Convalescent, Nursing)Commercial

21954 DOLORES ST

CASTRO VALLEY, CA 94546
20
Beds
20
Baths
228,736 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.
5.95 ac
Lot SizeThe size of the land the home sits on, from county records.
1991
Year BuiltThe year the home was originally built, according to county records.
3
StoriesHow many floors the home has above ground.
80
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.$170,033 (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.$52,000,476 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$6,928,824
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$45,071,652
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$50,980,934

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Homes (Retired, Handicap, Rest, Convalescent, Nursing)
CountyALAMEDA
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Elevator

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
Hayward High SchoolC+
High · Grades 9–12 · 1.0 mi
M
Bret Harte Middle SchoolC-
Middle · Grades 7–8 · 1.1 mi
E
Fairview Elementary SchoolD
Elementary · Grades KG–6 · 1.4 mi

District: Hayward Unified School District

Neighborhood · ZIP 94546These 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.78
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.91
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.657

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.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.9%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.46,776
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,466 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$117,352
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$142,642
Average tempThe average temperature here across a full year.57°F
Annual precipHow much rain and melted snow falls here in a typical year.23 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

21954 Dolores 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 Castro Valley
  • Among the largest lots in Castro Valley
  • Newer than 93% of homes in Castro Valley 94546

How it measures up in Castro Valley 94546

The dot is this home. The mark in the middle is the typical home in Castro Valley 94546.

Living area228,736 ft²
SmallerTypical 1,545 ft²Bigger

Bigger than almost all homes nearby

Lot size5.95 ac
SmallerTypical 0.15 acBigger

Bigger than 97% of homes nearby

Year built1991
OlderTypical 1955Newer

Newer than 93% of homes nearby

How 21954 Dolores St ranks against every home in each area.
MeasureThis homeCastro ValleyCastro Valley 94546Alameda County
Living areabigger than228,736 ft²almost all homesalmost all homesalmost all homes
Lot sizebigger than5.95 acalmost all homes97% of homes98% of homes
Year builtnewer than199183% of homes93% of homes80% of homes

About 21954 Dolores St

When did 21954 Dolores St, Castro Valley, CA last sell?

21954 Dolores St, Castro Valley, CA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 21954 Dolores St, Castro Valley, CA?

21954 Dolores St, Castro Valley, CA has 20 bedrooms, 20 bathrooms and 228,736 square feet of living space.

When was 21954 Dolores St, Castro Valley, CA built?

21954 Dolores St, Castro Valley, CA was built in 1991, making it 35 years old. The building has 3 stories.

What schools serve 21954 Dolores St, Castro Valley, CA?

21954 Dolores St, Castro Valley, CA is assigned to Hayward High School (high), rated C+; Bret Harte Middle School (middle), rated C-; Fairview Elementary School (elementary), rated D. All sit in Hayward Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21954 Dolores St, Castro Valley, CA compare to other homes in Castro Valley 94546?

Among the 13,491 homes in Castro Valley 94546, it is bigger than almost all of them (228,736 ft² against a typical 1,545 ft²), its lot is bigger than 97% of them (5.95 ac against a typical 0.15 ac) and it is newer than 93% of them (1991 against a typical 1955). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 21954 Dolores St, Castro Valley, CA?

The 2025 property tax bill for 21954 Dolores St, Castro Valley, CA was $170,033. The county assessed it at $52,000,476.

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