Alameda County  »  20940 Ashfield Ave

20940 Ashfield Avenue, Castro Valley, CA 94546 Property Information

20940 Ashfield Avenue, Castro Valley, CA 94546 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
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20940 Ashfield Avenue, Castro Valley, CA 94546
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Address

Primary address 20940 Ashfield Avenue, Castro Valley
Zip code 94546
County Alameda
Parcel ID 84A-40-36

Sales & Tax Overview for 20940 Ashfield Avenue, Castro Valley

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

Sale date 08/15/2007
Sale price $509,000
Arm's length
Property tax $7,782

Lot & Building Information for 20940 Ashfield Avenue, Castro Valley

Building sqft 1,314
Building class Single Family Residential Homes Used as Such (1100)
Acreage 0.12
Units 1
Year built 1956
Stories 1
Bedrooms 3
Bathrooms 2
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Zoning, Use & Area Overview

Walk Score
Transit Score
Bike Score


Zoning district Cv Central Business District? Subarea 11, W (S11-W)
School district Castro Vly Unif SCH

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

Other Property Data for 20940 Ashfield Avenue, Castro Valley

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  • • Improvements for 20940 Ashfield Avenue, Castro Valley , including their type, square footage, grade and when they were built.
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About 20940 Ashfield Avenue, Castro Valley

What is the year built & the total sq. ft. for 20940 Ashfield Avenue, Castro Valley, CA 94546?

20940 Ashfield Avenue, Castro Valley, CA 94546 was built in 1956 and has a total of 1,314 square feet.

What is the assessed value of 20940 Ashfield Avenue, Castro Valley, CA 94546 and the property tax paid?

Assessed at $668,535, the tax amount paid for 20940 Ashfield Avenue, Castro Valley, CA 94546 is $7,781.

When was 20940 Ashfield Avenue, Castro Valley, CA 94546 last sold and what was the last sale price?

20940 Ashfield Avenue, Castro Valley, CA 94546 was last sold in 08/15/2007 for $509,000.

Ownership Information

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Real Estate Reports:
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.
Eliza Theiss, Apr 23, 2026 $4.6M Hudson Yards Maintains Top Spot, Luxury Sales in Malba Set $2.5M Price Record for Queens
Despite prices declining, Hudson Yards remained the most expensive NYC neighborhood, but TriBeCa’s growth closed the gap to under $400,000, while Malba set a new historic price record for Queens at $2.5 million, securing the highest ranking ever for the borough at #5.
Eliza Theiss, Apr 15, 2026 2026 Q1 Foreclosure Report: Brooklyn Filings Fall Sharply, Bronx & Staten Island Hit New Peaks
Behind a deceptively mild citywide downtick, borough foreclosure markets pulled into significantly diverging paths as Brooklyn cases were nearly halved and the Bronx hit a new, record high. Meanwhile, Queens remained unchanged, Staten Island surged back up and Manhattan cooled slowly.
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Past Sales & Property History for 20940 Ashfield Avenue, Castro Valley

Create a free account to view the complete sales history for 20940 Ashfield Avenue, Castro Valley, including title documents, transfer conditions, mortgages and liens.

Purchase date Purchase price Buyer name Seller name
08/15/2007 $509,000
04/26/2000 $175,000
       
       
       
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Title Documents for 20940 Ashfield Avenue, 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
06/09/2020 Deed of trust 07/01/2050
11/29/2016 Deed of Trust 12/01/2046
08/15/2007 Deed
04/26/2000 Deed
               
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R: Recorded date
D: Document date

Property Taxes for 20940 Ashfield Avenue, Castro Valley

Access detailed property tax data for 20940 Ashfield Avenue, 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 $7,782
Market value $668,535

Assessment History for 20940 Ashfield Avenue, Castro Valley

Here's the assessment & property tax history for 20940 Ashfield Avenue, 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 $668,535 1.164 $7,782 +0.69%
2024-2025 $655,428 1.1791 $7,728 -48.84%
2023-2024 $642,581 2.3508 $15,106 +101.36%
2022-2023 $629,983 1.1908 $7,502 +2.51%
2021-2022 $617,635 1.1848 $7,318 +2.29%

Permits for 20940 Ashfield Avenue, Castro Valley

The complete history of permits filed for 20940 Ashfield Avenue, 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 20940 Ashfield Avenue, 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 20940 Ashfield Avenue, 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)
Castro Valley Elementary School 6 Public K-5 472 0.37
Our Lady Of Grace School NR Private K-8 218 0.54
Special Education-Preschool-Laurel NR Public 1 0.63
The Montessori Giving Tree NR Private K-6 12 0.66
Vita Academy NR Private 1-6 0 0.68

Nearest middle schools

Name Rating Type Grade range No of students Distance to school (mi)
Our Lady Of Grace School NR Private K-8 218 0.54
Special Education-Preschool-Laurel NR Public 1 0.63
Redwood Christian Schools NR Private K-12 706 0.96
Anchor Education, Inc. NR Private 3-12 18 1.02
Creekside Middle School 8 Public 6-8 760 1.03

Nearest high schools

Name Rating Type Grade range No of students Distance to school (mi)
Special Education-Preschool-Laurel NR Public 1 0.63
Castro Valley High School 9 Public 9-12 2,799 0.79
Redwood Christian Schools NR Private K-12 706 0.96
Anchor Education, Inc. NR Private 3-12 18 1.02
Anchor Education, Inc. School NR Private 3-12 0 1.03

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

Neighbors for 20940 Ashfield Avenue, Castro Valley

Here are the neighbors for 20940 Ashfield Avenue, Castro Valley.

Address Square feet Purchase date Purchase price
21079 Ashfield Ave, Castro Valley 1,314 03/27/2019
20933 Wilbeam Ave, Castro Valley 2,082 05/18/2015 $510,000
21029 San Miguel Ave, Castro Valley 1,536 02/24/2020 $810,000
20939 Wilbeam Ave, Castro Valley 19,382 09/08/2025
3243 Castro Valley Blvd, Castro Valley 3,000 02/04/2025
20886 Ashfield Ave, Castro Valley 1,748 05/27/2025 $900,000
3270 Kerr St, Castro Valley 1,698 03/02/2015
3197 Castro Valley Blvd, Castro Valley 4,489 12/27/1990 $575,000
20948 Ashfield Ave, Castro Valley 1,314 05/18/2023
20853 Wilbeam Ave, Castro Valley 06/10/2025
3235 Castro Valley Blvd, Castro Valley 3,256 12/24/2012
20876 Ashfield Ave, Castro Valley 1,712 11/09/2006
20850 Nunes Ave, Castro Valley 1,243 09/19/2003
20957 Ashfield Ave, Castro Valley 2,910 12/29/2017 $975,000
3024 Kerr St, Castro Valley 906 02/05/2021
21153 Tyee CT, Castro Valley 1,317 01/14/2025 $920,000
20863 Ashfield Ave, Castro Valley 1,741 02/27/2001 $401,000
20963 Ashfield Ave, Castro Valley 1,314 05/27/2010 $398,000
3172 Kerr St, Castro Valley 1,698 10/08/2007
20956 Ashfield Ave, Castro Valley 1,314 07/13/1990 $203,000

Nearby ZIP Codes for 20940 Ashfield Avenue, Castro Valley

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