Alameda County  »  21886 Ada St

21886 Ada Street, Castro Valley, CA 94546 Property Information

21886 Ada Street, Castro Valley, CA 94546 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
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21886 Ada Street, Castro Valley, CA 94546
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Address

Primary address 21886 Ada Street, Castro Valley
Zip code 94546
County Alameda
Parcel ID 415-90-88

Sales & Tax Overview for 21886 Ada 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 05/21/2002
Sale price $350,000
Arm's length
Current property tax $5,979

Lot & Building Information for 21886 Ada Street, Castro Valley

Building sqft 1,169
Building class Single Family Residential Homes Used as Such (1100)
Acreage 0.12
Units 1
Year built 1948
Stories 1
Bedrooms 2
Bathrooms 1
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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 21886 Ada Street, Castro Valley

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  • • Improvements for 21886 Ada Street, Castro Valley , including their type, square footage, grade and when they were built.
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About 21886 Ada Street, Castro Valley

What is the year built & the total sq. ft. for 21886 Ada Street, Castro Valley, CA 94546?

21886 Ada Street, Castro Valley, CA 94546 was built in 1948 and has a total of 1,169 square feet.

What is the assessed value of 21886 Ada Street, Castro Valley, CA 94546 and the property tax paid?

Assessed at $517,020, the tax amount paid for 21886 Ada Street, Castro Valley, CA 94546 is $6,061.

When was 21886 Ada Street, Castro Valley, CA 94546 last sold and what was the last sale price?

21886 Ada Street, Castro Valley, CA 94546 was last sold in 05/21/2002 for $350,000.

Ownership Information

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Real Estate Reports:
Lucian Alixandrescu, May 27, 2026 NYC Office Market Ahead of National Curve: Manhattan Q1 Vacancy Drops to 13.1% 
New York City’s office market outpaced the U.S. on several major metrics in Q1, with Manhattan vacancy nearly 5 percentage points below the national benchmark, asking rents climbing against a downward national trend and flex inventory crossing 15 million square feet.
Laura Pop-Badiu, May 21, 2026 How to Find Land Boundaries: Free & Paid Methods
If you need to find land boundaries fast, you can start with a free county parcel/GIS viewer or a premium platform like PropertyShark to see an approximate parcel outline and lot data. However, keep in mind that a web-based land boundaries map is a starting point, not the legal finish line.
Laura Pop-Badiu, May 07, 2026 Locked-In Owners, Mobile Renters: Homeowners Stay Put as Renters Move 3.7x More Across Largest U.S. Cities 
Renters became the primary drivers of long-distance mobility across the largest U.S. cities, moving 3.7 times more than owners in 2024, as high mortgage rates and housing costs kept many homeowners in place.
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  • 2000+ governmental and public data sources
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Past Sales & Property History for 21886 Ada Street, Castro Valley

Create a free account to view the complete sales history for 21886 Ada Street, Castro Valley, including title documents, transfer conditions, mortgages and liens.

Purchase date Purchase price Buyer name Seller name
05/21/2002 $350,000

Title Documents for 21886 Ada 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
04/26/2017 Deed of Trust
11/04/2016 Deed of Trust 11/01/2031
05/16/2016 Reconveyance
Substitution of Trustee
04/29/2016 Deed of Trust 05/01/2036
05/21/2002 Deed
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R: Recorded date
D: Document date

Property Taxes for 21886 Ada Street, Castro Valley

Access detailed property tax data for 21886 Ada 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 $6,062
Current property tax $5,979
Market value $517,020

Assessment History for 21886 Ada Street, Castro Valley

Here's the assessment & property tax history for 21886 Ada 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 $517,020 1.1724 $6,062 +0.98%
2024-2025 $506,883 1.1842 $6,003 -22.76%
2023-2024 $496,947 1.5638 $7,771 +34.18%
2022-2023 $487,203 1.1888 $5,792 +0.82%
2021-2022 $477,651 1.2028 $5,745 +1.17%

Permits for 21886 Ada Street, Castro Valley

The complete history of permits filed for 21886 Ada 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
$989,000
-8.4% YoY
Median Price/Sqft
$669
3.4% YoY
Alameda County Median Sale Price
$965,000
-7.1% 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 21886 Ada 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) 0.2, 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 21886 Ada Street, Castro Valley to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

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Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance to school (mi)
Vita Academy NR Private 1-6 0 0.21
Special Education-Preschool-Laurel NR Public 1 0.21
The Montessori Giving Tree NR Private K-6 12 0.45
Strobridge Elementary School NR Public K-6 362 0.77
Faith Ringgold School of Arts and Science 1 Public K-8 111 0.81

Nearest middle schools

Name Rating Type Grade range No of students Distance to school (mi)
Special Education-Preschool-Laurel NR Public 1 0.21
Stellar Preparatory High School NR Private 9 0 0.75
Faith Ringgold School of Arts and Science 1 Public K-8 111 0.81
Liber Community School NR Private 4-12 0 0.99
Our Lady Of Grace School NR Private K-8 218 1.02

Nearest high schools

Name Rating Type Grade range No of students Distance to school (mi)
Special Education-Preschool-Laurel NR Public 1 0.21
Stellar Preparatory High School NR Private 9 0 0.75
Liber Community School NR Private 4-12 0 0.99
Stellar Preparatory High School NR Private 9-11 26 1.20
Hayward High School 5 Public 9-12 1,712 1.22

Data provided by GreatSchools.org © 2025. All rights reserved.

Neighbors for 21886 Ada Street, Castro Valley

Here are the neighbors for 21886 Ada Street, Castro Valley.

Address Square feet Purchase date Purchase price
21948 Ada St, Castro Valley 1,465 03/07/2008
22093 Redwood Rd, Castro Valley 1,904 03/15/2017 $500,000
21738 Ada St, Castro Valley 1,104 06/04/2021
22097 Redwood Rd, Castro Valley 2,367 03/21/2017
21973 Redwood Rd, Castro Valley 1,192 07/30/2021
2362 Vestal Ave, Castro Valley 1,423 12/03/2020
2338 Vestal Ave, Castro Valley 1,288 08/18/2015
21835 Redwood Rd, Castro Valley 1,200 09/30/2022
21821 Redwood Rd, Castro Valley 1,192 07/31/2008
2331 Lessley Ave, Castro Valley 1,071 12/20/2013 $427,000
2354 Vestal Ave, Castro Valley 1,018 08/02/2018
21985 Redwood Rd, Castro Valley 1,200 04/09/2026
21847 Redwood Rd, Castro Valley 1,200 06/08/2017
2353 Vestal Ave, Castro Valley 1,558 11/15/2021
2346 Vestal Ave, Castro Valley 1,552 05/31/1990 $44,000
2322 Vestal Ave, Castro Valley 1,018 12/29/2017 $600,000
2323 Lessley Ave, Castro Valley 1,380 06/07/2017
21898 Ada St, Castro Valley 906 02/28/2018
2314 Vestal Ave, Castro Valley 1,303 05/12/2017 $665,000
21715 Redwood Rd, Castro Valley 1,464 06/30/2021 $650,000

Nearby ZIP Codes for 21886 Ada Street, Castro Valley

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