Alameda County  »  94546  »  Wilbeam Ave  »  20939 Wilbeam Ave

20939 Wilbeam Avenue, Castro Valley, CA 94546 - Property report

Also known as: 20935 Wilbeam Ave

Property image for 20939 Wilbeam Avenue, Castro Valley, CA 94546
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Property type

Multiple Residential Building of 5 or More Units (7700)

Acreage

0.87

General Information

Address
Primary address
20939 Wilbeam Ave
Castro Valley, CA 94546
Alternate address(es)
20935 Wilbeam Ave
20981 Wilbeam Ave
Zip code
94546
County
Alameda
Parcel ID
84A-40-27-2

Owner

Find out who owns 20939 Wilbeam Avenue, Castro Valley, CA 94546. Uncover corporate and individual owners with a free account.

Tax
Tax year
2025-2026
Property tax
$45,742
Building
Property type
Multiple Residential Building of 5 or More Units
Building sq. ft.
19,382
Stories
2
Building material
Wood/wood and steel frames
Last altered
1964
Elevator
Lot
Acreage
0.87
Lot sq. ft.
37,897
Zoning & use
Zoning
Qualified opportunity zone
Units
24

Area overview

Walk score
87 /100.  Very Walkable
Transit score
44 /100.  Some Transit
Bike score
72 /100.  Very Bikeable
School district
CASTRO VLY UNIF SCH
Ownership

Ownership information for 20939 Wilbeam Avenue, Castro Valley, CA

Property owner name
Registered owner
Source
Deed
Owner contact information
Phone number
Owner address
Documents

Sales history for 20939 Wilbeam Avenue, Castro Valley, CA 94546

No recently recorded sales for this property.

More about Alameda County property records.

Title documents

Date Type Amount Party 1 Party 2
09/08/2025 Trust Transfer Deed XXXXXXXX XXXXXX XXXXXXXX XXXXXX X XX
02/19/2025 Trust Transfer Grant Deed XXXXXXXX XXXXX X XX XXXXXXXX XXXXX X XX
11/01/2023 Affidavit of death XXXXXXXX XXXXX X
04/24/2007 Deed XXXXXXXX, XXXXXXX X XXXXXXXX XXXXXXX XXXXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 20939 Wilbeam Avenue, Castro Valley, CA

Property tax data includes tax amount, market value and assessed value, exemptions, abatements and assessment history.

Current property tax
Tax year
2025-2026
Property tax
$45,742
Recent tax assessments
Market value
$3,929,690
Land value
$1,278,496
Building value
$2,651,194

More about Alameda County property taxes

Assessment history

See the assessment and property tax history, including the evolution of the total tax rate and corresponding property tax amount.

Tax year Assessed value Tax rate Property tax Y-o-Y change
2025-2026 $3,929,690 1.164 $45,742 +0.69%
2024-2025 $3,852,638 1.1791 $45,426 +163.41%
2023-2024 $733,605 2.3508 $17,246 +101.36%
2022-2023 $719,224 1.1908 $8,565 +2.52%
2021-2022 $705,122 1.1848 $8,354 +0.97%
2020-2021 $707,001 1.1703 $8,274 -1.57%
2019-2020 $690,125 1.218 $8,406 +2.85%
2018-2019 $676,711 1.2077 $8,173 +2.63%
2017-2018 $663,559 1.2001 $7,963 +5.05%
2016-2017 $650,665 1.165 $7,580 +6.98%
Permits

Permit information for 20939 Wilbeam Avenue, Castro Valley, CA

Issued date Permit number Permit type Sub type Valuation Finaled date Status
08/13/2025
07/31/2025
07/21/2025

*Most recent permits on record for this property.

Neighborhood

Castro Valley residential market stats

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.

Median sale price

$1,013,750

-2.9% Y-o-Y

Median price/sq. ft.

$619

-9.8% Y-o-Y

Alameda county median sale price

$955,000

-6.4% Y-o-Y

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%
People per household (average)
2.84
Occupied housing units
15,565
Owner-occupied units
66.3%
Median year structure built
1960
Median value mortgaged units
$1,065,100
Median value unmortgaged units
$995,000

Risk

Create a free account to unlock expanded risk information, such as crime incidents in the area, tsunami and landslides risks, or its location relative to FEMA flood zones and the Coastal Barriers Resources System Area (COBRA).

FEMA flood zones

FEMA flood zones
X
Landslides and liquefaction map

Fire hazard zones

Faults and tsunami inundation zones map

Transportation

Daily traffic map
View daily traffic map

Access the detailed traffic volume map for 20939 Wilbeam Avenue, Castro Valley, CA 94546 to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

Neighbors for 20939 Wilbeam Avenue, Castro Valley, CA

20933 Wilbeam Ave, Castro Valley 21029 San Miguel Ave, Castro Valley 3243 Castro Valley Blvd, Castro Valley 20950 Nunes Ave, Castro Valley 3270 Kerr St, Castro Valley 20886 Ashfield Ave, Castro Valley 3197 Castro Valley Blvd, Castro Valley 20948 Ashfield Ave, Castro Valley 20853 Wilbeam Ave, Castro Valley 3235 Castro Valley Blvd, Castro Valley 20876 Ashfield Ave, Castro Valley 20850 Nunes Ave, Castro Valley 20957 Ashfield Ave, Castro Valley 20940 Ashfield Ave, Castro Valley 21153 Tyee CT, Castro Valley 20863 Ashfield Ave, Castro Valley 20956 Ashfield Ave, Castro Valley 3185 Castro Valley Blvd, Castro Valley 21112 Baker Rd, Castro Valley 20914 Chester St, Castro Valley

Nearby ZIP codes for 20939 Wilbeam Avenue, Castro Valley, CA

94542, Alameda County, CA 94579, Alameda County, CA 94601, Alameda County, CA 94613, Alameda County, CA 94619, Alameda County, CA

Frequently asked questions

What is the total square footage of 20939 Wilbeam Avenue, Castro Valley, CA 94546?

20939 Wilbeam Avenue, Castro Valley, CA 94546 has a total of 19,382 square feet.

What is the assessed value of 20939 Wilbeam Avenue, Castro Valley, CA 94546?

20939 Wilbeam Avenue, Castro Valley, CA 94546 is currently assessed at $3,929,690.

What are the property taxes for 20939 Wilbeam Avenue, Castro Valley, CA 94546?

The property taxes for 20939 Wilbeam Avenue, Castro Valley, CA 94546 total $45,741.

How many residential units does this building have?

This building has 24 residential unit(s).

Disclaimer

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