Alameda County  »  94546  »  Ashfield Ave  »  20948 Ashfield Ave

20948 Ashfield Avenue, Castro Valley, CA 94546 - Property report

Also known as: 20948 Ashfield Ave

Property image for 20948 Ashfield Avenue, Castro Valley, CA 94546
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Property type

Single Family Residential Homes Used as Such (1100)

Year built

1956

Acreage

0.12

Sale price

$820,000

General Information

Address
Primary address
20948 Ashfield Ave
Castro Valley, CA 94546
Zip code
94546
County
Alameda
Parcel ID
84A-40-35

Owner

Find out who owns 20948 Ashfield Avenue, Castro Valley, CA 94546. Uncover corporate and individual owners with a free account.

Sales
Sale date
01/29/2021
Sale price
$820,000
Arm's length
Tax
Tax year
2025-2026
Base tax
$10,331
Current property tax
$10,250
Tax per sq. ft.
$8
Building
Property type
Single Family Residential Homes Used as Such
Building sq. ft.
1,314
Stories
1
Year built
1956
Building material
Wood/wood and steel frames
Last altered
1957
Rooms
5
Elevator
Bedrooms
3
Bathrooms
2
Lot
Acreage
0.12
Zoning & use
Zoning
Cv Central Business District? Subarea 11, W (S11-W)
Units
1

Area overview

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

Ownership information for 20948 Ashfield Avenue, Castro Valley, CA

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

Sales history for 20948 Ashfield Avenue, Castro Valley, CA 94546

Sale date Sale price Buyer name Seller name
01/29/2021 $820,000 XXX XXXXX XXXXX XXXXX XXXXXXX XXX XXX; XXXXX XXXXXX XXX XXXX; XXXXX XXXX XXX XXX; XXXXX XXXX X XXX XXX

*Most recent sale on record for this property.

More about Alameda County property records.

Title documents

Date Type Amount Party 1 Party 2
05/18/2023 Grant Deed XXX XXXXX XXX XX XXX XXXXX XXX XX XX
01/29/2021 Deed of trust XXX XXXXX XXXXX XXXXXX XXXXXXX XXXX
01/29/2021 Interspousal Transfer Deed XX XXXXXXXX XXX XXXXX XXXXX
01/29/2021 Grant Deed XXXXX XXXXXXX XXX XXX XXX XXXXX XXXXX
01/29/2021 Letters administratix/tor XXXXX XXXXXXX XXX XXX XXXXX XXXXXX XXX XXXX
06/18/2020 Affidavit of death XXXXXXXX XXXXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 20948 Ashfield 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
Base tax
$10,331
Current property tax
$10,250
Tax per sq. ft.
$8
Recent tax assessments
Market value
$887,584
Land value
$266,275
Building value
$621,309

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 $887,584 1.164 $10,331 +0.69%
2024-2025 $870,183 1.1791 $10,260 -48.84%
2023-2024 $853,127 2.3508 $20,055 +101.36%
2022-2023 $836,400 1.1908 $9,960 +11.68%
2021-2022 $752,717 1.1848 $8,918 +579.82%
2020-2021 $112,092 1.1703 $1,312 -2.00%
2019-2020 $109,895 1.218 $1,339 +2.87%
2018-2019 $107,740 1.2077 $1,301 +2.65%
2017-2018 $105,627 1.2001 $1,268 +5.07%
2016-2017 $103,556 1.165 $1,206 +7.00%
Permits

Permit information for 20948 Ashfield Avenue, Castro Valley, CA

No recently recorded permits 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.

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 20948 Ashfield 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.

Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance (miles)
Castro Valley Elementary School 6 Public K-5 472 0.38
Our Lady Of Grace School NR Private K-8 218 0.55
Special Education-Preschool-Laurel NR Public 1 0.62
The Montessori Giving Tree NR Private K-6 12 0.65
Vita Academy NR Private 1-6 0 0.68
Strobridge Elementary School NR Public K-6 362 0.68
Marshall Elementary School 9 Public K-5 491 0.74
Crossroads Christian Elementary School NR Private K-6 0 0.80
Redwood Christian Elementary School NR Private K-5 282 0.88
Stanton Elementary School 6 Public K-5 492 0.99
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
Our Lady Of Grace School NR Private K-8 218 0.55
Special Education-Preschool-Laurel NR Public 1 0.62
Redwood Christian Schools NR Private K-12 706 0.97
Anchor Education, Inc. NR Private 3-12 18 1.03
Creekside Middle School 8 Public 6-8 760 1.03
Anchor Education, Inc. School NR Private 3-12 0 1.04
Sterling West San Francisco Campus NR Private 3-11 27 1.04
Alma Preschool NR Public 52 1.06
Castro Valley Adult And Career Education NR Public 0 1.07
Faith Ringgold School of Arts and Science 1 Public K-8 111 1.25
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Special Education-Preschool-Laurel NR Public 1 0.62
Castro Valley High School 9 Public 9-12 2,799 0.80
Redwood Christian Schools NR Private K-12 706 0.97
Anchor Education, Inc. NR Private 3-12 18 1.03
Anchor Education, Inc. School NR Private 3-12 0 1.04
Sterling West San Francisco Campus NR Private 3-11 27 1.04
Alma Preschool NR Public 52 1.06
Castro Valley Adult And Career Education NR Public 0 1.07
Liber Community School NR Private 4-12 0 1.17
Castro Valley Virtual Academy 7 Public K-12 67 1.54

Data provided by GreatSchools.org © 2026. All rights reserved.

Neighbors for 20948 Ashfield Avenue, Castro Valley, CA

21079 Ashfield Ave, Castro Valley 20933 Wilbeam Ave, Castro Valley 21029 San Miguel Ave, Castro Valley 20939 Wilbeam Ave, Castro Valley 3243 Castro Valley Blvd, Castro Valley 20886 Ashfield Ave, Castro Valley 3270 Kerr St, Castro Valley 3197 Castro Valley Blvd, 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 20963 Ashfield Ave, Castro Valley 3172 Kerr St, Castro Valley 20956 Ashfield Ave, Castro Valley 3185 Castro Valley Blvd, Castro Valley

Nearby ZIP codes for 20948 Ashfield 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 year built for 20948 Ashfield Avenue, Castro Valley, CA 94546?

The development at 20948 Ashfield Avenue, Castro Valley, CA 94546 was built in 1956.

What is the total square footage of 20948 Ashfield Avenue, Castro Valley, CA 94546?

20948 Ashfield Avenue, Castro Valley, CA 94546 has a total of 1,314 square feet.

When was 20948 Ashfield Avenue, Castro Valley, CA 94546 last sold and what was the sale price?

20948 Ashfield Avenue, Castro Valley, CA 94546 was last sold on 01/29/2021 for $820,000.

What is the assessed value of 20948 Ashfield Avenue, Castro Valley, CA 94546?

20948 Ashfield Avenue, Castro Valley, CA 94546 is currently assessed at $887,584.

What are the property taxes for 20948 Ashfield Avenue, Castro Valley, CA 94546?

The property taxes for 20948 Ashfield Avenue, Castro Valley, CA 94546 total $10,331.

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