Alameda County » 21503 Dolores St

21503 Dolores Street, Castro Valley, CA 94546 Property Information

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Address

Primary address	21503 Dolores Street, Castro Valley
Zip code	94546
County	Alameda

Parcel ID	415-120-2-1

Sales & Tax Overview for 21503 Dolores Street, Castro Valley

View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.

Sale date	07/24/2018
Sale price	$760,000

Arm's length	Register
Current property tax	$9,857

Lot & Building Information for 21503 Dolores Street, Castro Valley

Building sqft	955
Building class	Single Family Residential Homes Used as Such (1100)
Acreage	0.17
Units	1
Year built	1948
Stories	1
Bedrooms	2
Bathrooms	1

Zoning, Use & Area Overview

Walk Score

Transit Score

Bike Score

Zoning district	Single Family Residential (R1-CSU-RV)
School district	Hayward Unif SCH

View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.

Other Property Data for 21503 Dolores Street, Castro Valley

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• Improvements for 21503 Dolores Street, Castro Valley , including their type, square footage, grade and when they were built.

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About 21503 Dolores Street, Castro Valley

What is the year built & the total sq. ft. for 21503 Dolores Street, Castro Valley, CA 94546?

21503 Dolores Street, Castro Valley, CA 94546 was built in 1948 and has a total of 955 square feet.

What is the assessed value of 21503 Dolores Street, Castro Valley, CA 94546 and the property tax paid?

Assessed at $847,780, the tax amount paid for 21503 Dolores Street, Castro Valley, CA 94546 is $9,939.

When was 21503 Dolores Street, Castro Valley, CA 94546 last sold?

21503 Dolores Street, Castro Valley, CA 94546 was last sold in 09/21/2020.

Ownership Information

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Commercial Real Estate nearby

Real Estate Reports:

Lucian Alixandrescu, Jul 28, 2026 Brooklyn Emerges as NYC’s Coworking Growth Engine, Manhattan Rents Cross $100 in the Plaza District

New York City’s office market continued to lead the U.S. in Q2, but internal shifts were most visible in the flex office market. Brooklyn’s coworking inventory grew 6.2% Q-o-Q even as Manhattan’s supply retreated. At the same time, Brooklyn’s asking rents for traditional office leases climbed more than twice as fast as the national average.

Eliza Theiss, Jul 22, 2026 Prices Rise in 32 of NYC’s Leading Neighborhoods as City and Manhattan Hit Record Highs

Q2 2026 saw NYC and Manhattan reach historic highs, with Brooklyn and Queens marking close to new records as well. Meanwhile, Hudson Yards remained at the top, Central Midtown posted its highest price ever and Carroll Gardens marked its third consecutive quarter over $2 million

Laura Pop-Badiu, Jul 15, 2026 How to Find Property Owners — The Complete Guide

For real estate professionals looking for the best ways to find property owners — whether through free methods based on public sources or paid tools with verified, in-depth data — this comprehensive guide breaks down every step of the due diligence process.

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Past Sales & Property History for 21503 Dolores Street, Castro Valley

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More about Alameda County Property Records

Title Documents for 21503 Dolores Street, Castro Valley

To view the complete history of deeds, mortgages, assignments of leases and rents, and more, sign up for free. Available data goes back to 1966.

Date	Type	Maturity
08/31/2021	Deed of trust	09/01/2051
09/21/2020	Grant Deed to Revocable Trust
12/03/2019	Deed of Trust	12/01/2049
07/24/2018	Deed of Trust	08/01/2048
07/24/2018	Grant Deed
02/25/2015	Deed of Trust
08/31/1998	Deed

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R: Recorded date
D: Document date

Property Taxes for 21503 Dolores Street, Castro Valley

Access detailed property tax data for 21503 Dolores Street, Castro Valley, CA 94546. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year:	2025-2026
Base tax	$9,939
Current property tax	$9,857

Market value	$847,780

More about Alameda County Property Taxes

Assessment History for 21503 Dolores Street, Castro Valley

Here's the assessment & property tax history for 21503 Dolores Street, Castro Valley, including the evolution of the total tax rate and corresponding property tax.

Year	Assessment value	Total tax rate	Property tax	Year over year change
2025-2026	$847,780	1.1724	$9,939	+0.98%
2024-2025	$831,158	1.1842	$9,843	-22.76%
2023-2024	$814,864	1.5638	$12,743	+34.18%
2022-2023	$798,888	1.1888	$9,497	+0.81%
2021-2022	$783,224	1.2028	$9,421	+1.17%

Permits for 21503 Dolores Street, Castro Valley

The complete history of permits filed for 21503 Dolores Street, Castro Valley, including new construction or demolition permits, plus any work pertaining to plumbing, heating and sprinkler systems is available with a free account. Available data goes back to 1990.

Data not available for this property.

Castro Valley residential market stats

Median Sale Price

$1,013,750

-2.9% YoY

Median Price/Sqft

$619

-9.8% YoY

Alameda County Median Sale Price

$955,000

-6.4% YoY

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 County.

Check out recently sold homes in Castro-Valley and see how their prices compare.

Risk

Create a free account to unlock extended information for 21503 Dolores Street, Castro Valley, including whether it's located in FEMA flood zones, floodways or special flood hazard areas, as well as the Coastal barriers resources system area (COBRA).

FEMA flood zone(s)	X (See more on map)
Fire hazard zone	See more on map
Faults and tsunami inundation zone map	Register
Landslides and liquefaction map	Register

Transportation

Access the detailed traffic volume map for 21503 Dolores Street, Castro Valley to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

View daily traffic map

Schools

Nearest elementary schools

Name	Rating	Type	Grade range	No of students	Distance (miles)
The Montessori Giving Tree	NR	Private	K-6	12	0.32
Vita Academy	NR	Private	1-6	0	0.45
Special Education-Preschool-Laurel	NR	Public		1	0.49
Strobridge Elementary School	NR	Public	K-6	362	0.51
Castro Valley Elementary School	6	Public	K-5	472	0.68

Nearest middle schools

Name	Rating	Type	Grade range	No of students	Distance (miles)
Special Education-Preschool-Laurel	NR	Public		1	0.49
Our Lady Of Grace School	NR	Private	K-8	218	0.85
Liber Community School	NR	Private	4-12	0	0.86
Stellar Preparatory High School	NR	Private	9	0	0.90
Faith Ringgold School of Arts and Science	1	Public	K-8	111	0.95

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	0.86
Stellar Preparatory High School	NR	Private	9	0	0.90
Castro Valley High School	9	Public	9-12	2,799	1.14
Stellar Preparatory High School	NR	Private	9-11	26	1.18

Neighbors for 21503 Dolores Street, Castro Valley

Here are the neighbors for 21503 Dolores Street, Castro Valley.

Address	Square feet	Purchase date	Purchase price
22004 Orange Ave, Castro Valley	1,566
22175 Dolores St, Castro Valley	1,456	05/24/2018	$645,000
21596 Orange Ave, Castro Valley	1,200	08/12/2019
21592 Orange Ave, Castro Valley	1,192	02/02/1999	$213,500
21590 Orange Ave, Castro Valley	1,200	01/08/2019
2175 Grove Way, Castro Valley	1,966	11/05/1996
22183 Dolores St, Castro Valley	996	07/06/2021
21588 Orange Ave, Castro Valley	1,197	03/03/2017
21586 Orange Ave, Castro Valley	1,222	03/09/2026
1942 Leila St, Castro Valley	1,490	04/07/2005	$550,000
1950 Leila St, Castro Valley	996	09/09/2021	$840,000
2195 Grove Way, Castro Valley	885	01/04/2021
2167 Grove Way, Castro Valley	1,190	05/18/2009	$255,000
21529 Dolores St, Castro Valley	1,018	02/06/2025
21635 Dolores St, Castro Valley	1,604	02/11/2003
21643 Dolores St, Castro Valley	1,340	11/01/2007
21659 Dolores St, Castro Valley	1,018	10/17/2024	$799,000
21767 Dolores St, Castro Valley	1,236	08/21/2020	$705,000
2045 Grove Way, Castro Valley	1,885	08/24/2016	$800,000
2271 Lessley Ave, Castro Valley	1,581	11/29/2016

Nearby ZIP Codes for 21503 Dolores Street, Castro Valley

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