Alameda County  »  94546  »  Ashfield Ave  »  21103 Ashfield Ave

21103 Ashfield Avenue, Castro Valley, CA 94546 - Property report

Also known as: 21103 Ashfield Ave

Property image for 21103 Ashfield Avenue, Castro Valley, CA 94546
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Property type

Single Family Residential Homes Used as Such (1100)

Year built

1955

Acreage

0.12

Sale price

$420,000

General Information

Address
Primary address
21103 Ashfield Ave
Castro Valley, CA 94546
Zip code
94546
County
Alameda
Parcel ID
84A-51-25

Owner

Find out who owns 21103 Ashfield Avenue, Castro Valley, CA 94546. Uncover corporate and individual owners with a free account.

Sales
Sale date
01/28/2010
Sale price
$420,000
Arm's length
Tax
Tax year
2025-2026
Base tax
$6,310
Current property tax
$6,229
Tax per sq. ft.
$4
Building
Property type
Single Family Residential Homes Used as Such
Building sq. ft.
1,666
Stories
1
Year built
1955
Building material
Wood/wood and steel frames
Last altered
1956
Rooms
8
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
81 /100.  Very Walkable
Transit score
44 /100.  Some Transit
Bike score
76 /100.  Very Bikeable
School district
CASTRO VLY UNIF SCH
Ownership

Ownership information for 21103 Ashfield Avenue, Castro Valley, CA

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

Sales history for 21103 Ashfield Avenue, Castro Valley, CA 94546

Sale date Sale price Buyer name Seller name
01/28/2010 $420,000 XXX, XXX X XXXXXXXX XX XX
05/27/2009 $427,353 XXXXXXXX XX XX XXXXXXXX XXXXXXX XXXX
07/30/2004 $498,000 XXXXX, XXXX X & XXXXXX X XXXXXXX, XXXXX X

*Most recent sales on record for this property.

More about Alameda County property records.

Title documents

Date Type Amount Party 1 Party 2
01/28/2010 Deed XXXXXXXX XX XX XXX, XXX X
05/27/2009 Deed XXXXXXXX XXXXXXX XXXX XXXXXXXX XX XX
07/30/2004 Deed XXXXXXX, XXXXX X XXXXX, XXXX X & XXXXXX X
01/27/2004 Deed XXXXXX, XXX X XXXXXXX, XXXXX
12/11/2003 Deed XXXXXXX, XXXXX XXXXXX, XXX
10/09/2003 Deed XXXXXX, XXX X XXXXXXX, XXXXX
08/19/2003 Deed XXXXXXX, XXXXX XXXXXX, XXX X
08/11/2003 Deed XXXXXX, XXX X XXXXXXX, XXXXX
12/29/1999 Deed XXXX XXXXX XXXXXXX, XXX X

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 21103 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
$6,310
Current property tax
$6,229
Tax per sq. ft.
$4
Recent tax assessments
Market value
$542,105
Land value
$162,631
Building value
$379,474

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 $542,105 1.164 $6,310 +0.69%
2024-2025 $531,480 1.1791 $6,267 -48.84%
2023-2024 $521,060 2.3508 $12,249 +101.36%
2022-2023 $510,845 1.1908 $6,083 +2.51%
2021-2022 $500,832 1.1848 $5,934 +2.29%
2020-2021 $495,700 1.1703 $5,801 -1.99%
2019-2020 $485,981 1.218 $5,919 +2.87%
2018-2019 $476,455 1.2077 $5,754 +2.65%
2017-2018 $467,114 1.2001 $5,606 +5.07%
2016-2017 $457,958 1.165 $5,335 +7.00%
Permits

Permit information for 21103 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 21103 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 0.43
The Montessori Giving Tree NR Private K-6 12 0.58
Special Education-Preschool-Laurel NR Public 1 0.59
Our Lady Of Grace School NR Private K-8 218 0.60
Strobridge Elementary School NR Public K-6 362 0.62
Vita Academy NR Private 1-6 0 0.63
Crossroads Christian Elementary School NR Private K-6 0 0.77
Marshall Elementary School 9 Public K-5 491 0.80
Redwood Christian Elementary School NR Private K-5 282 0.95
Stanton Elementary School 6 Public K-5 492 1.00
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
Special Education-Preschool-Laurel NR Public 1 0.59
Our Lady Of Grace School NR Private K-8 218 0.60
Redwood Christian Schools NR Private K-12 706 1.05
Anchor Education, Inc. NR Private 3-12 18 1.07
Anchor Education, Inc. School NR Private 3-12 0 1.08
Sterling West San Francisco Campus NR Private 3-11 27 1.08
Creekside Middle School 8 Public 6-8 760 1.09
Alma Preschool NR Public 52 1.14
Castro Valley Adult And Career Education NR Public 0 1.14
Faith Ringgold School of Arts and Science 1 Public K-8 111 1.19
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Special Education-Preschool-Laurel NR Public 1 0.59
Castro Valley High School 9 Public 9-12 2,799 0.88
Redwood Christian Schools NR Private K-12 706 1.05
Anchor Education, Inc. NR Private 3-12 18 1.07
Anchor Education, Inc. School NR Private 3-12 0 1.08
Sterling West San Francisco Campus NR Private 3-11 27 1.08
Liber Community School NR Private 4-12 0 1.09
Alma Preschool NR Public 52 1.14
Castro Valley Adult And Career Education NR Public 0 1.14
Castro Valley Virtual Academy 7 Public K-12 67 1.59

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

Neighbors for 21103 Ashfield Avenue, Castro Valley, CA

20944 Chester St, Castro Valley 21135 Ashfield Ave, Castro Valley 21153 Dawe Ave, Castro Valley 21113 Dawe Ave, Castro Valley 21143 Ashfield Ave, Castro Valley 21176 Dawe Ave, Castro Valley 21160 Dawe Ave, Castro Valley 3000 Kerr St, Castro Valley 3101 Francis CT, Castro Valley 21186 Francis St, Castro Valley 21105 Dawe Ave, Castro Valley 21127 Ashfield Ave, Castro Valley 21112 Dawe Ave, Castro Valley 21104 Dawe Ave, Castro Valley 20948 San Miguel Ave, Castro Valley 21177 Dawe Ave, Castro Valley 21137 Dawe Ave, Castro Valley 21159 Ashfield Ave, Castro Valley 21111 Ashfield Ave, Castro Valley 3080 Norbridge Ave, Castro Valley

Nearby ZIP codes for 21103 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 21103 Ashfield Avenue, Castro Valley, CA 94546?

The development at 21103 Ashfield Avenue, Castro Valley, CA 94546 was built in 1955.

What is the total square footage of 21103 Ashfield Avenue, Castro Valley, CA 94546?

21103 Ashfield Avenue, Castro Valley, CA 94546 has a total of 1,666 square feet.

When was 21103 Ashfield Avenue, Castro Valley, CA 94546 last sold and what was the sale price?

21103 Ashfield Avenue, Castro Valley, CA 94546 was last sold on 01/28/2010 for $420,000.

What is the assessed value of 21103 Ashfield Avenue, Castro Valley, CA 94546?

21103 Ashfield Avenue, Castro Valley, CA 94546 is currently assessed at $542,105.

What are the property taxes for 21103 Ashfield Avenue, Castro Valley, CA 94546?

The property taxes for 21103 Ashfield Avenue, Castro Valley, CA 94546 total $6,310.

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