Alameda County  »  21521 Dolores St

21521 Dolores Street, Castro Valley, CA 94546 Property Information

21521 Dolores Street, Castro Valley, CA 94546 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
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21521 Dolores Street, Castro Valley, CA 94546
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Address

Primary address 21521 Dolores Street, Castro Valley
Zip code 94546
County Alameda
Parcel ID 415-120-5

Sales & Tax Overview for 21521 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 06/09/1994
Sale price $167,000
Arm's length
Property tax $3,328

Lot & Building Information for 21521 Dolores Street, Castro Valley

Building sqft 1,104
Building class Single Family Residential Homes Used as Such (1100)
Acreage 0.12
Units 1
Year built 1948
Stories 1
Bedrooms 3
Bathrooms 1
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Zoning, Use & Area Overview

Walk Score
63 /100. Somewhat Walkable
Transit Score
44 /100. Some Transit
Bike Score
78 /100. Very Bikeable

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 21521 Dolores Street, Castro Valley

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  • • Improvements for 21521 Dolores Street, Castro Valley , including their type, square footage, grade and when they were built.
  • • Development maps such as planimetric, zoning, land use and urban landscape maps (building age and stories).
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About 21521 Dolores Street, Castro Valley

What is the year built & the total sq. ft. for 21521 Dolores Street, Castro Valley, CA 94546?

21521 Dolores Street, Castro Valley, CA 94546 was built in 1948 and has a total of 1,104 square feet.

What is the assessed value of 21521 Dolores Street, Castro Valley, CA 94546 and the property tax paid?

Assessed at $283,832, the tax amount paid for 21521 Dolores Street, Castro Valley, CA 94546 is $3,327.

When was 21521 Dolores Street, Castro Valley, CA 94546 last sold and what was the last sale price?

21521 Dolores Street, Castro Valley, CA 94546 was last sold in 06/09/1994 for $167,000.

Ownership Information

View detailed property contacts like owners, building management, representatives from permits and tenants with a free account.

Real Estate Reports:
How to Contact Property Owners: Cold Calling Scripts, Email Templates & Outreach Tips 
Laura Pop-Badiu, Jul 29, 2026 How to Contact Property Owners: Cold Calling Scripts, Email Templates & Outreach Tips 
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Eliza Theiss, Jul 22, 2026 Prices Rise in 32 of NYC’s Leading Neighborhoods as City and Manhattan Hit Record Highs
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Past Sales & Property History for 21521 Dolores Street, Castro Valley

Create a free account to view the complete sales history for 21521 Dolores Street, Castro Valley, including title documents, transfer conditions, mortgages and liens.

Purchase date Purchase price Buyer name Seller name
06/09/1994 $167,000

More about Alameda County Property Records

Title Documents for 21521 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 Amount Party 1 Party 2 Maturity Document Doc image
04/21/2015 Deed of Trust 04/10/2050
04/21/2015 Deed of Trust 05/01/2030
06/09/1994 Deed
               
               
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R: Recorded date
D: Document date

Property Taxes for 21521 Dolores Street, Castro Valley

Access detailed property tax data for 21521 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
Property tax $3,328
Market value $283,832

More about Alameda County Property Taxes

Assessment History for 21521 Dolores Street, Castro Valley

Here's the assessment & property tax history for 21521 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 $283,832 1.1724 $3,328 +0.98%
2024-2025 $278,268 1.1842 $3,295 -22.76%
2023-2024 $272,812 1.5638 $4,266 +34.18%
2022-2023 $267,463 1.1888 $3,180 +0.81%
2021-2022 $262,220 1.2028 $3,154 +1.17%
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Permits for 21521 Dolores Street, Castro Valley

The complete history of permits filed for 21521 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.

Issued Permit Type Status
04/06/2023
       
       
       
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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 21521 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
Landslides and liquefaction map

Transportation

Access the detailed traffic volume map for 21521 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 0.29
Vita Academy NR Private 1-6 0 0.43
Special Education-Preschool-Laurel NR Public 1 0.48
Strobridge Elementary School NR Public K-6 362 0.51
Castro Valley Elementary School 6 Public K-5 472 0.72
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Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
Special Education-Preschool-Laurel NR Public 1 0.48
Liber Community School NR Private 4-12 0 0.83
Stellar Preparatory High School NR Private 9 0 0.87
Our Lady Of Grace School NR Private K-8 218 0.88
Faith Ringgold School of Arts and Science 1 Public K-8 111 0.91
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Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Special Education-Preschool-Laurel NR Public 1 0.48
Liber Community School NR Private 4-12 0 0.83
Stellar Preparatory High School NR Private 9 0 0.87
Stellar Preparatory High School NR Private 9-11 26 1.15
Castro Valley High School 9 Public 9-12 2,799 1.18
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Data provided by GreatSchools.org © 2025. All rights reserved.

Neighbors for 21521 Dolores Street, Castro Valley

Here are the neighbors for 21521 Dolores Street, Castro Valley.

Address Square feet Purchase date Purchase price
2692 Vegas Ave, Castro Valley 1,632 04/23/2015
2686 Vegas Ave, Castro Valley 885 01/22/2015
21537 Knoll Way, Castro Valley 1,428 01/02/2003
21663 Shadyspring Rd, Castro Valley 1,812 09/07/2023
1953 Leila St, Castro Valley 1,199 12/01/2006 $508,000
21515 Dolores St, Castro Valley 996 08/12/2022 $625,000
21661 Knoll Way, Castro Valley 2,014 05/31/2024 $1,250,000
21640 Dolores St, Castro Valley 1,609 02/18/2015
21875 Idena Ave, Castro Valley
22419 Ruby St, Castro Valley 897 04/09/2020
2252 Farley St, Castro Valley 1,416 03/23/2023
2266 Reading Ave, Castro Valley 1,989 10/04/2024
21660 Knoll Way, Castro Valley 1,684 07/23/2025
22298 N 3rd St, Castro Valley
1446 A St, Castro Valley 6,600 02/19/2026 $1,700,000
2243 Farley St, Castro Valley 996 08/01/2025
21600 Knoll Way, Castro Valley 1,764 09/12/2014
22151 Orange Ave, Castro Valley 1,437 07/22/2004
21608 Orange Ave, Castro Valley 1,197 11/21/2024 $925,000
2257 Reading Ave, Castro Valley 1,333 06/24/2020 $690,000
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Nearby ZIP Codes for 21521 Dolores Street, Castro Valley

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