Alameda County  »  21425 Oak St

21425 Oak Street, Castro Valley, CA 94546 Property Information

21425 Oak Street, Castro Valley, CA 94546 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
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21425 Oak Street, Castro Valley, CA 94546
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Address

Primary address 21425 Oak Street, Castro Valley
Zip code 94546
County Alameda
Parcel ID 415-170-23

Sales & Tax Overview for 21425 Oak 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 07/27/2016
Sale price $2,050,000
Arm's length
Property tax $2,721

Lot & Building Information for 21425 Oak Street, Castro Valley

Building class Vacant Apartment Land, Capable of 5 or More Units (7000)
Acreage 0.16
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Zoning, Use & Area Overview

Walk Score
Transit Score
Bike Score


Zoning district Commercial Office (CO)
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 21425 Oak Street, Castro Valley

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  • • Improvements for 21425 Oak Street, Castro Valley , including their type, square footage, grade and when they were built.
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About 21425 Oak Street, Castro Valley

What is the market value of 21425 Oak Street, Castro Valley, CA 94546?

The current market value is $232,112.

Ownership Information

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Past Sales & Property History for 21425 Oak Street, Castro Valley

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Purchase date Purchase price Buyer name Seller name
07/27/2016 $2,050,000

Title Documents for 21425 Oak Street, Castro Valley

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Date Type Amount Party 1 Party 2 Maturity Document Doc image
07/27/2016 Grant Deed
07/23/2015 Notice Compliance
               
               
               
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R: Recorded date
D: Document date

Property Taxes for 21425 Oak Street, Castro Valley

Access detailed property tax data for 21425 Oak 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 $2,721
Market value $232,112

Assessment History for 21425 Oak Street, Castro Valley

Here's the assessment & property tax history for 21425 Oak 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 $232,112 1.1724 $2,721 +0.98%
2024-2025 $227,562 1.1842 $2,695 -22.76%
2023-2024 $223,100 1.5638 $3,489 +34.17%
2022-2023 $218,726 1.1888 $2,600 +0.82%
2021-2022 $214,438 1.2028 $2,579 +1.16%

Permits for 21425 Oak Street, Castro Valley

The complete history of permits filed for 21425 Oak 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 21425 Oak 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 21425 Oak 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)
Strobridge Elementary School NR Public K-6 362 0.24
Liber Community School NR Private 4-12 0 0.46
The Montessori Giving Tree NR Private K-6 12 0.51
Crossroads Christian Elementary School NR Private K-6 0 0.51
Knowledge Enlightens You (Key) Academy 5 Charter K-8 614 0.76

Nearest middle schools

Name Rating Type Grade range No of students Distance to school (mi)
Liber Community School NR Private 4-12 0 0.46
Knowledge Enlightens You (Key) Academy 5 Charter K-8 614 0.76
Hayward Adult NR Public 0 0.94
Special Education-Preschool-Laurel NR Public 1 1.12
Faith Ringgold School of Arts and Science 1 Public K-8 111 1.16

Nearest high schools

Name Rating Type Grade range No of students Distance to school (mi)
Liber Community School NR Private 4-12 0 0.46
Hayward Adult NR Public 0 0.94
Stellar Preparatory High School NR Private 9-11 26 0.97
Brenkwitz High School 2 Public 9-12 179 0.97
Special Education-Preschool-Laurel NR Public 1 1.12

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

Neighbors for 21425 Oak Street, Castro Valley

Here are the neighbors for 21425 Oak Street, Castro Valley.

Address Square feet Purchase date Purchase price
21447 Oak St, Castro Valley 07/27/2016 $2,050,000
1713 Grove Way, Castro Valley 1,528 08/31/1998 $216,000
21753 Baywood Ave, Castro Valley 2,490 10/20/2021
1731 Grove Way, Castro Valley 1,392 10/25/2021
21407 Oak St, Castro Valley 07/27/2016 $2,050,000
21454 Oak St, Castro Valley 05/27/2020
21431 Oak St, Castro Valley 07/27/2016 $2,050,000
21331 Oak St, Castro Valley 09/01/2016 $250,000
21303 Oak St, Castro Valley 6,400 06/23/2015 $1,000,000
21408 Oak St, Castro Valley
21658 Tanglewood Dr, Castro Valley 3,465 04/15/2013
1482 Grove Way, Castro Valley 1,412 03/07/2022 $342,500
1434 Grove Way, Castro Valley 826 01/21/2016 $595,000
1725 Grove Way, Castro Valley 1,904 06/14/2018 $955,000
21498 Oak St, Castro Valley 2,692 09/05/2024
21462 Oak St, Castro Valley 1,141 05/15/1998
21339 Oak St, Castro Valley 12/03/2025
21473 Gary Dr, Castro Valley 1,330 12/23/2016
21747 Baywood Ave, Castro Valley 2,671 06/01/2021
21623 Shadyspring Rd, Castro Valley 2,246 06/06/1997 $249,000

Nearby ZIP Codes for 21425 Oak Street, Castro Valley

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