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Common Area (Residential)Other / Unknown
$584,452$40 / 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 93How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026

20153 FOREST AVE

CASTRO VALLEY, CA 94546
24
Beds
31
Baths
14,612 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.
0.63 ac
Lot SizeThe size of the land the home sits on, from county records.
1986
Year BuiltThe year the home was originally built, according to county records.
2
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.
28
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$584K
$545K low$624K high

Tax & Assessment

Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$610,830

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Common Area (Residential)
CountyALAMEDA
Lot (acres)The size of the land the home sits on, from county records.0.63
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
GarageWhether the property has a garage, and details like whether it is attached to the home.Carport (Unspecified)
PoolWhether the property has a pool, and what kind, such as in-ground.Yes

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Marshall Elementary SchoolA
Elementary · Grades KG–5 · 0.2 mi
H
Castro Valley High SchoolA-
High · Grades 9–12 · 0.5 mi
M
Creekside Middle SchoolA
Middle · Grades 6–8 · 0.5 mi

District: Castro Valley 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

20153 Forest 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 96% of homes in Castro Valley
  • Among the lowest price per square foot in Castro Valley
  • Among the largest homes in Castro Valley
  • Has a bigger lot than 94% of homes in Castro Valley
  • Newer than 88% of homes in Castro Valley 94546

What homes are worth in Castro Valley 94546

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

This home
$443K$1.8M

This home is worth more than 8% 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.

Estimated value$584,452
CheaperTypical $988,225Pricier

Pricier than 8% of homes nearby

Price per ft²$40
CheaperTypical $629Pricier

Cheaper than almost all homes nearby

Living area14,612 ft²
SmallerTypical 1,547 ft²Bigger

Bigger than almost all homes nearby

Lot size0.63 ac
SmallerTypical 0.15 acBigger

Bigger than 91% of homes nearby

Year built1986
OlderTypical 1955Newer

Newer than 88% of homes nearby

How 20153 Forest Ave ranks against every home in each area.
MeasureThis homeCastro ValleyCastro Valley 94546Alameda County
Estimated valuepricier than$584,4524% of homes8% of homes15% of homes
Price per ft²pricier than$40almost no homesalmost no homesalmost no homes
Living areabigger than14,612 ft²almost all homesalmost all homesalmost all homes
Lot sizebigger than0.63 ac94% of homes91% of homes91% of homes
Year builtnewer than198676% of homes88% of homes74% of homes

About 20153 Forest Ave

How much is 20153 Forest Ave, Castro Valley, CA worth?

The TopHap Estimate for 20153 Forest Ave, Castro Valley, CA is $584,452 as of Oct 21, 2026. The likely range is $545,139 to $623,765. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20153 Forest Ave, Castro Valley, CA last sell?

20153 Forest Ave, Castro Valley, CA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 20153 Forest Ave, Castro Valley, CA?

20153 Forest Ave, Castro Valley, CA has 24 bedrooms, 31 bathrooms, 14,612 square feet of living space and a 0.63-acre lot.

When was 20153 Forest Ave, Castro Valley, CA built?

20153 Forest Ave, Castro Valley, CA was built in 1986, making it 40 years old. The building has 2 stories.

What schools serve 20153 Forest Ave, Castro Valley, CA?

20153 Forest Ave, Castro Valley, CA is assigned to Marshall Elementary School (elementary), rated A; Castro Valley High School (high), rated A-; Creekside Middle School (middle), rated A. All sit in Castro Valley Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20153 Forest Ave, Castro Valley, CA compare to other homes in Castro Valley 94546?

Among the 13,490 homes in Castro Valley 94546, it is worth more than 8% of them ($584,452 against a typical $988,225), its price per square foot is higher than almost none of them ($40 against a typical $629), it is bigger than almost all of them (14,612 ft² against a typical 1,547 ft²), its lot is bigger than 91% of them (0.63 ac against a typical 0.15 ac) and it is newer than 88% of them (1986 against a typical 1955). Measured against all of Alameda County, it is worth more than 15% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

More homes on Forest Ave

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Assigned schools

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