Alameda County  »  94546  »  Dolores St  »  21821 Dolores St

21821 Dolores Street, Castro Valley, CA 94546 - Property report

Also known as: 21821 Dolores St

Property image for 21821 Dolores Street, Castro Valley, CA 94546
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Property type

Single Family Residential Homes Used as Such (1100)

Year built

1948

Acreage

1.24

Sale price

$300,000

General Information

Address
Primary address
21821 Dolores St
Castro Valley, CA 94546
Zip code
94546
County
Alameda
Parcel ID
415-110-3

Owner

Find out who owns 21821 Dolores Street, Castro Valley, CA 94546. Uncover corporate and individual owners with a free account.

Sales
Sale date
07/28/2010
Sale price
$300,000
Arm's length
Tax
Tax year
2026-2027
Property tax
$4,596
Tax per sq. ft.
$5
Building
Property type
Single Family Residential Homes Used as Such
Building sq. ft.
858
Stories
10
Year built
1948
Building material
Wood/wood and steel frames
Rooms
4
Elevator
Bedrooms
2
Bathrooms
10
Lot
Acreage
1.24
Zoning & use
Zoning
Single Family Residential (R1-CSU-RV)
Units
1

Area overview

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

Ownership information for 21821 Dolores Street, Castro Valley, CA

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

Sales history for 21821 Dolores Street, Castro Valley, CA 94546

Sale date Sale price Buyer name Seller name
07/28/2010 $300,000 XXXXX, XXXXXX XXXXXXX XXXX XXXX XXX XXXX
05/14/2010 $231,421 XXXXXXX XXXX XXXX XXX XXXX XXX-XXXXXXX XXXXXXXXXXXX
06/04/2007 $505,000 XXXXXXX, XXXXXX X & XXXXXXXX X XXXXXXXX, XXXXX X & XXXXXX X

*Most recent sales on record for this property.

More about Alameda County property records.

Title documents

Date Type Amount Party 1 Party 2
01/25/2021 Reconveyance
Substitution of trustee		 XXXXX XXXXXX X XXXXX XXXXXX X
12/28/2020 Deed of trust XXXXX XXXXXX X XXXX XXXX
11/15/2018 Deed of Trust XXXXX XXXXXX X XXX XXXXX XXXXXX XXXXX
11/15/2018 Grant Deed XXXXX XXXXXX X XXXXX XXXXXX X
06/16/2014 Deed of Trust XXXXX XXXXXX XXXXXXXX XXXX XXXXX XXX
07/28/2010 Deed XXXXXXX XXXX XXXX XXX XXXX XXXXX, XXXXXX
05/14/2010 Deed XXX-XXXXXXX XXXXXXXXXXXX XXXXXXX XXXX XXXX XXX XXXX
06/04/2007 Deed XXXXXXXX, XXXXX X & XXXXXX X XXXXXXX, XXXXXX X & XXXXXXXX X
09/09/2005 Deed XXXXXXXX XXXXXX XXXXX XXXXXXXX, XXXXX X & XXXXXX X
07/31/1997 Deed XXXXXXX, XXXX X XXXXXXXX, XXXXXXX X & XXXXX X

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 21821 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
2026-2027
Property tax
$4,596
Tax per sq. ft.
$5
Recent tax assessments
Market value
$392,015
Land value
$117,604
Building value
$274,411

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 $384,330 1.1724 $4,506 +0.98%
2024-2025 $376,796 1.1842 $4,462 -22.76%
2023-2024 $369,410 1.5638 $5,777 +34.17%
2022-2023 $362,168 1.1888 $4,305 +0.81%
2021-2022 $355,067 1.2028 $4,271 +1.18%
2020-2021 $351,428 1.2012 $4,221 -0.87%
2019-2020 $344,540 1.236 $4,259 +6.95%
2018-2019 $337,787 1.1788 $3,982 +2.50%
2017-2018 $331,166 1.173 $3,885 +6.33%
2016-2017 $324,674 1.1252 $3,653 +1.44%
Permits

Permit information for 21821 Dolores Street, Castro Valley, CA

Issued date Permit number Permit type Sub type Valuation Finaled date Status
12/13/2023
02/09/2021
02/09/2021

*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.

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 21821 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 0.18
Vita Academy NR Private 1-6 0 0.39
Special Education-Preschool-Laurel NR Public 1 0.49
Strobridge Elementary School NR Public K-6 362 0.51
Liber Community School NR Private 4-12 0 0.73
Faith Ringgold School of Arts and Science 1 Public K-8 111 0.80
Castro Valley Elementary School 6 Public K-5 472 0.84
Crossroads Christian Elementary School NR Private K-6 0 0.84
All Saints Catholic School NR Private K-8 203 0.99
Marshall Elementary School 9 Public K-5 491 1.09
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
Special Education-Preschool-Laurel NR Public 1 0.49
Liber Community School NR Private 4-12 0 0.73
Stellar Preparatory High School NR Private 9 0 0.76
Faith Ringgold School of Arts and Science 1 Public K-8 111 0.80
All Saints Catholic School NR Private K-8 203 0.99
Our Lady Of Grace School NR Private K-8 218 1.00
Bret Harte Middle School 5 Public 7-8 545 1.18
Knowledge Enlightens You (Key) Academy 5 Charter K-8 614 1.29
Creekside Middle School 8 Public 6-8 760 1.35
Northstar School NR Private PK-8 152 1.38
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Special Education-Preschool-Laurel NR Public 1 0.49
Liber Community School NR Private 4-12 0 0.73
Stellar Preparatory High School NR Private 9 0 0.76
Stellar Preparatory High School NR Private 9-11 26 1.02
Hayward High School 5 Public 9-12 1,712 1.27
Castro Valley High School 9 Public 9-12 2,799 1.30
Victory Academy NR Private 7, 9-11 0 1.41
Hayward Adult NR Public 0 1.41
Brenkwitz High School 2 Public 9-12 179 1.43
Anchor Education, Inc. NR Private 3-12 18 1.45

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

Neighbors for 21821 Dolores Street, Castro Valley, CA

21654 Dolores St, Castro Valley 21949 Dolores St, Castro Valley 2229 Star Ave, Castro Valley 2218 Reading Ave, Castro Valley 2250 Reading Ave, Castro Valley 21974 Dolores St, Castro Valley 2261 Vestal Ave, Castro Valley 2251 Farley St, Castro Valley 2228 Farley St, Castro Valley 2277 Star Ave, Castro Valley 2285 Star Ave, Castro Valley 2159 Grove Way, Castro Valley 2223 Lessley Ave, Castro Valley 2284 Farley St, Castro Valley 2221 Star Ave, Castro Valley 1918 Leila St, Castro Valley 1926 Leila St, Castro Valley 22134 Orange Ave, Castro Valley 2226 Reading Ave, Castro Valley 21512 Dolores St, Castro Valley

Nearby ZIP codes for 21821 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 21821 Dolores Street, Castro Valley, CA 94546?

The development at 21821 Dolores Street, Castro Valley, CA 94546 was built in 1948.

What is the total square footage of 21821 Dolores Street, Castro Valley, CA 94546?

21821 Dolores Street, Castro Valley, CA 94546 has a total of 858 square feet.

When was 21821 Dolores Street, Castro Valley, CA 94546 last sold and what was the sale price?

21821 Dolores Street, Castro Valley, CA 94546 was last sold on 07/28/2010 for $300,000.

What is the assessed value of 21821 Dolores Street, Castro Valley, CA 94546?

21821 Dolores Street, Castro Valley, CA 94546 is currently assessed at $384,330.

What are the property taxes for 21821 Dolores Street, Castro Valley, CA 94546?

The property taxes for 21821 Dolores Street, Castro Valley, CA 94546 total $4,505.

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