Alameda County  »  21091 Wilbeam Ave

21091 Wilbeam Avenue, Castro Valley, CA 94546 Property Information

21091 Wilbeam Avenue, Castro Valley, CA 94546 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
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21091 Wilbeam Avenue, Castro Valley, CA 94546
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Address

Primary address 21091 Wilbeam Avenue, Castro Valley
Zip code 94546
County Alameda
Parcel ID 84A-46-5-6

Sales & Tax Overview for 21091 Wilbeam Avenue, Castro Valley

View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.

Property tax $57,024

Lot & Building Information for 21091 Wilbeam Avenue, Castro Valley

Building sqft 11,752
Total sqft 11,752
Building class Multiple Residential Building of 5 or More Units (7700)
Acreage 0.47
Buildings on lot 2
Rooms 40
Units 8
Year built 2021
Stories 3
Construction type Wood/wood and steel frames
Elevator
Parking
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Zoning, Use & Area Overview

Walk Score
Transit Score
Bike Score


Zoning district
School district Castro Vly Unif SCH

View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.

Other Property Data for 21091 Wilbeam Avenue, Castro Valley

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  • • Improvements for 21091 Wilbeam Avenue, Castro Valley , including their type, square footage, grade and when they were built.
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About 21091 Wilbeam Avenue, Castro Valley

What is the year built & the total sq. ft. for 21091 Wilbeam Avenue, Castro Valley, CA 94546?

21091 Wilbeam Avenue, Castro Valley, CA 94546 was built in 2021 and has a total of 11,752 square feet.

What is the assessed value of 21091 Wilbeam Avenue, Castro Valley, CA 94546 and the property tax paid?

Assessed at $4,898,994, the tax amount paid for 21091 Wilbeam Avenue, Castro Valley, CA 94546 is $57,024.

When was 21091 Wilbeam Avenue, Castro Valley, CA 94546 last sold?

21091 Wilbeam Avenue, Castro Valley, CA 94546 was last sold in 09/10/2021.

How many residential units does this building have?

This building has 8 residential unit(s).

Ownership Information

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Real Estate Reports:
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Huble’s recent survey of 126 founders, CEOs and other decision-makers in New York City’s startup ecosystem revealed how local business leaders are approaching workplace strategy in 2026 and beyond.
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World Cup ticket prices rival monthly housing expenses in the 11 U.S. host cities, with even the cheapest seats covering weeks or even months of rent or mortgage payments.
Lucian Alixandrescu, May 27, 2026 NYC Office Market Ahead of National Curve: Manhattan Q1 Vacancy Drops to 13.1% 
New York City’s office market outpaced the U.S. on several major metrics in Q1, with Manhattan vacancy nearly 5 percentage points below the national benchmark, asking rents climbing against a downward national trend and flex inventory crossing 15 million square feet.
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Past Sales & Property History for 21091 Wilbeam Avenue, Castro Valley

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No recorded sales for this property.

Title Documents for 21091 Wilbeam Avenue, Castro Valley

To view the complete history of deeds, mortgages, assignments of leases and rents, and more, sign up for free. Available data goes back to 1966.

Date Type Amount Party 1 Party 2 Maturity Document Doc image
04/29/2025 Assignment (deed of trust)
04/28/2022 Agreement
09/10/2021 Grant Deed
               
               
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R: Recorded date
D: Document date

Property Taxes for 21091 Wilbeam Avenue, Castro Valley

Access detailed property tax data for 21091 Wilbeam Avenue, Castro Valley, CA 94546. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year: 2025-2026
Property tax $57,024
Market value $4,898,994

Assessment History for 21091 Wilbeam Avenue, Castro Valley

Here's the assessment & property tax history for 21091 Wilbeam Avenue, Castro Valley, including the evolution of the total tax rate and corresponding property tax.

Year Assessment value Total tax rate Property tax Year over year change
2025-2026 $4,898,994 1.164 $57,024 +0.69%
2024-2025 $4,802,968 1.1791 $56,632 -48.84%
2023-2024 $4,708,795 2.3508 $110,694 +101.36%
2022-2023 $4,616,466 1.1908 $54,973 +105.91%
2021-2022 $2,253,304 1.1848 $26,697 +76.56%

Permits for 21091 Wilbeam Avenue, Castro Valley

The complete history of permits filed for 21091 Wilbeam Avenue, Castro Valley, including new construction or demolition permits, plus any work pertaining to plumbing, heating and sprinkler systems is available with a free account. Available data goes back to 1990.

Data not available for this property.

Castro Valley residential market stats

Median Sale Price
$989,000
-8.4% YoY
Median Price/Sqft
$669
3.4% YoY
Alameda County Median Sale Price
$965,000
-7.1% YoY

Access a detailed real estate market overview of Castro Valley so you can assess current trends, home values, types of properties sold and transaction volume. View the median home sale price in Castro Valley and compare it to other neighborhoods in Alameda County.

Check out recently sold homes in Castro-Valley and see how their prices compare.

Demographics by Zip Code

Total population 44,855
Median age 41.7
Average household income $161,274
Family households 74.3%
Occupied housing units 15,565
Owner occupied units 66.3%
Average number of people per household 2.84
Median year structure built 1960
Median value for units with a mortgage $1,065,100
Median value for units without a mortgage $995,000

Risk

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FEMA flood zone(s) X (See more on map)
Fire hazard zone See more on map
Faults and tsunami inundation zone map
Landslides and liquefaction map

Transportation

Access the detailed traffic volume map for 21091 Wilbeam Avenue, Castro Valley to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

View daily traffic map

Neighbors for 21091 Wilbeam Avenue, Castro Valley

Here are the neighbors for 21091 Wilbeam Avenue, Castro Valley.

Address Square feet Purchase date Purchase price
18654 Crest Ave, Castro Valley 1,008
18710 Lake Chabot Rd, Castro Valley 2,963 04/28/2022 $1,711,500
20957 Baker Rd, Castro Valley
3822 Seven Hills Rd, Castro Valley 2,039 12/27/2024
3447 Seven Hills Rd, Castro Valley 888
18658 Crest Ave, Castro Valley 1,968
20957 Baker Rd, Castro Valley
20957 Baker Rd, Castro Valley
17668 Parker Rd, Castro Valley 2,998
20957 Baker Rd, Castro Valley

Nearby ZIP Codes for 21091 Wilbeam Avenue, Castro Valley

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