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Single Family ResidenceResidential
$851,179
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 96How 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

17351 ROBEY DR

CASTRO VALLEY, CA 94546
0
Baths
0.12 ac
Lot SizeThe size of the land the home sits on, from county records.

Valuation

$851K
$818K low$884K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$711 (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.$36,547 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$36,547
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$35,830
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$784,980

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyALAMEDA
Lot (acres)The size of the land the home sits on, from county records.0.12
PoolWhether the property has a pool, and what kind, such as in-ground.No

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

M
Edendale Middle SchoolF
Middle · Grades 6–8 · 1.1 mi
H
San Lorenzo High SchoolC-
High · Grades 9–12 · 1.3 mi
E
Corvallis Elementary SchoolC
Elementary · Grades KG–5 · 2.9 mi

District: San Lorenzo 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

17351 Robey 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 less than 75% of homes in Castro Valley
  • Has a smaller lot 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
$456K$1.8M

This home is worth more than 31% 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$851,179
CheaperTypical $995,260Pricier

Pricier than 31% of homes nearby

Lot size0.12 ac
SmallerTypical 0.15 acBigger

Bigger than 12% of homes nearby

How 17351 Robey Dr ranks against every home in each area.
MeasureThis homeCastro ValleyCastro Valley 94546Alameda County
Estimated valuepricier than$851,17925% of homes31% of homes36% of homes
Lot sizebigger than0.12 ac18% of homes12% of homes33% of homes

About 17351 Robey Dr

How much is 17351 Robey Dr, Castro Valley, CA worth?

The TopHap Estimate for 17351 Robey Dr, Castro Valley, CA is $851,179 as of Sep 24, 2026. The likely range is $818,200 to $884,158. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 17351 Robey Dr, Castro Valley, CA last sell?

17351 Robey Dr, Castro Valley, CA last sold on Jan 1, 1900, according to the county's recorded deed.

What schools serve 17351 Robey Dr, Castro Valley, CA?

17351 Robey Dr, Castro Valley, CA is assigned to Edendale Middle School (middle), rated F; San Lorenzo High School (high), rated C-; Corvallis Elementary School (elementary), rated C. All sit in San Lorenzo Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 17351 Robey Dr, Castro Valley, CA compare to other homes in Castro Valley 94546?

Among the 13,472 homes in Castro Valley 94546, it is worth more than 31% of them ($851,179 against a typical $995,260) and its lot is bigger than 12% of them (0.12 ac against a typical 0.15 ac). Measured against all of Alameda County, it is worth more than 36% 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 17351 Robey Dr, Castro Valley, CA?

The 2025 property tax bill for 17351 Robey Dr, Castro Valley, CA was $711. The county assessed it at $36,547.

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Assigned schools

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