Alameda County  »  94546  »  Dolores St  »  21640 Dolores St

21640 Dolores Street, Castro Valley, CA 94546 - Property report

Also known as: 21640 Dolores St

Property image for 21640 Dolores Street, Castro Valley, CA 94546
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Property type

Single Family Residential Homes Used as Such (1100)

Year built

1948

Acreage

0.13

Sale price

$225,000

General Information

Address
Primary address
21640 Dolores St
Castro Valley, CA 94546
Zip code
94546
County
Alameda
Parcel ID
415-120-58

Owner

Find out who owns 21640 Dolores Street, Castro Valley, CA 94546. Uncover corporate and individual owners with a free account.

Sales
Sale date
03/31/1999
Sale price
$225,000
Arm's length
Tax
Tax year
2025-2026
Base tax
$4,135
Current property tax
$4,053
Tax per sq. ft.
$3
Building
Property type
Single Family Residential Homes Used as Such
Building sq. ft.
1,609
Stories
1
Year built
1948
Building material
Wood/wood and steel frames
Last altered
1967
Rooms
7
Elevator
Bedrooms
3
Bathrooms
2.5
Lot
Acreage
0.13
Zoning & use
Zoning
Single Family Residential (R1-CSU-RV)
Units
1

Area overview

Walk score
70 /100.  Somewhat Walkable
Transit score
45 /100.  Some Transit
Bike score
79 /100.  Very Bikeable
School district
HAYWARD UNIF SCH
Ownership

Ownership information for 21640 Dolores Street, Castro Valley, CA

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

Sales history for 21640 Dolores Street, Castro Valley, CA 94546

Sale date Sale price Buyer name Seller name
03/31/1999 $225,000 XXXX, XXXXX X & XXXXXX XXXXXXX, XXXXX
04/11/1991 $37,500 XXXXXXX, XXXXXX & X XXXXXXX, X.&X

*Most recent sales on record for this property.

More about Alameda County property records.

Title documents

Date Type Amount Party 1 Party 2
02/18/2015 Deed of Trust XXXX XXXXX X XXXX XXXX XXXXXXXXX XXXXXXXX
02/18/2015 Grant Deed XXXX XXXXX X XXXX XXXXX X
03/31/1999 Deed XXXXXXX, XXXXX XXXX, XXXXX X & XXXXXX
10/09/1998 Deed XXXXXXX, XXXXXX XXXXXXX, XXXXX
04/11/1991 Deed XXXXXXX, X.&X XXXXXXX, XXXXXX & X

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 21640 Dolores Street, 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
$4,135
Current property tax
$4,053
Tax per sq. ft.
$3
Recent tax assessments
Market value
$352,714
Land value
$105,814
Building value
$246,900

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 $352,714 1.1724 $4,135 +0.98%
2024-2025 $345,800 1.1842 $4,095 -22.76%
2023-2024 $339,020 1.5638 $5,302 +34.17%
2022-2023 $332,374 1.1888 $3,951 +0.82%
2021-2022 $325,857 1.2028 $3,919 +1.16%
2020-2021 $322,517 1.2012 $3,874 -0.87%
2019-2020 $316,194 1.236 $3,908 +6.95%
2018-2019 $309,995 1.1788 $3,654 +2.50%
2017-2018 $303,918 1.173 $3,565 +6.33%
2016-2017 $297,960 1.1252 $3,353 +1.44%
Permits

Permit information for 21640 Dolores Street, 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 21640 Dolores Street, 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)
The Montessori Giving Tree NR Private K-6 12 0.27
Vita Academy NR Private 1-6 0 0.40
Special Education-Preschool-Laurel NR Public 1 0.46
Strobridge Elementary School NR Public K-6 362 0.53
Castro Valley Elementary School 6 Public K-5 472 0.75
Liber Community School NR Private 4-12 0 0.82
Crossroads Christian Elementary School NR Private K-6 0 0.83
Faith Ringgold School of Arts and Science 1 Public K-8 111 0.88
Our Lady Of Grace School NR Private K-8 218 0.92
Marshall Elementary School 9 Public K-5 491 1.00
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
Special Education-Preschool-Laurel NR Public 1 0.46
Liber Community School NR Private 4-12 0 0.82
Stellar Preparatory High School NR Private 9 0 0.83
Faith Ringgold School of Arts and Science 1 Public K-8 111 0.88
Our Lady Of Grace School NR Private K-8 218 0.92
All Saints Catholic School NR Private K-8 203 1.08
Creekside Middle School 8 Public 6-8 760 1.26
Bret Harte Middle School 5 Public 7-8 545 1.28
Northstar School NR Private PK-8 152 1.35
Knowledge Enlightens You (Key) Academy 5 Charter K-8 614 1.37
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Special Education-Preschool-Laurel NR Public 1 0.46
Liber Community School NR Private 4-12 0 0.82
Stellar Preparatory High School NR Private 9 0 0.83
Stellar Preparatory High School NR Private 9-11 26 1.13
Castro Valley High School 9 Public 9-12 2,799 1.21
Hayward High School 5 Public 9-12 1,712 1.33
Anchor Education, Inc. NR Private 3-12 18 1.37
Redwood Christian Schools NR Private K-12 706 1.37
Castro Valley Adult And Career Education NR Public 0 1.45
Alma Preschool NR Public 52 1.45

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

Neighbors for 21640 Dolores Street, Castro Valley, CA

2692 Vegas Ave, Castro Valley 2686 Vegas Ave, Castro Valley 2530 Vegas Ave, Castro Valley 21537 Knoll Way, Castro Valley 21663 Shadyspring Rd, Castro Valley 2678 Vegas Ave, Castro Valley 21515 Dolores St, Castro Valley 21661 Knoll Way, Castro Valley 21875 Idena Ave, Castro Valley 2660 Vegas Ave, Castro Valley 2636 Vegas Ave, Castro Valley 2266 Reading Ave, Castro Valley 2252 Farley St, Castro Valley 2243 Farley St, Castro Valley 21521 Dolores St, Castro Valley 21600 Knoll Way, Castro Valley 2257 Reading Ave, Castro Valley 2648 Vegas Ave, Castro Valley 2642 Vegas Ave, Castro Valley 21608 Orange Ave, Castro Valley

Nearby ZIP codes for 21640 Dolores Street, Castro Valley, CA

94541, Alameda County, CA 94542, Alameda County, CA 94544, Alameda County, CA 94545, Alameda County, CA 94552, Alameda County, CA 94577, Alameda County, CA 94578, Alameda County, CA 94579, Alameda County, CA 94580, Alameda County, CA 94601, Alameda County, CA 94603, Alameda County, CA 94605, Alameda County, CA 94613, Alameda County, CA 94619, Alameda County, CA 94621, Alameda County, CA

Frequently asked questions

What is the year built for 21640 Dolores Street, Castro Valley, CA 94546?

The development at 21640 Dolores Street, Castro Valley, CA 94546 was built in 1948.

What is the total square footage of 21640 Dolores Street, Castro Valley, CA 94546?

21640 Dolores Street, Castro Valley, CA 94546 has a total of 1,609 square feet.

When was 21640 Dolores Street, Castro Valley, CA 94546 last sold and what was the sale price?

21640 Dolores Street, Castro Valley, CA 94546 was last sold on 03/31/1999 for $225,000.

What is the assessed value of 21640 Dolores Street, Castro Valley, CA 94546?

21640 Dolores Street, Castro Valley, CA 94546 is currently assessed at $352,714.

What are the property taxes for 21640 Dolores Street, Castro Valley, CA 94546?

The property taxes for 21640 Dolores Street, Castro Valley, CA 94546 total $4,135.

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