Alameda County  »  18936 Thornbury Ave

18936 Thornbury Avenue, Castro Valley, CA 94546 Property Information

18936 Thornbury Avenue, Castro Valley, CA 94546 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
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18936 Thornbury Avenue, Castro Valley, CA 94546
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Address

Primary address 18936 Thornbury Avenue, Castro Valley
Zip code 94546
County Alameda
Parcel ID 84D-1342-29

Sales & Tax Overview for 18936 Thornbury 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 10/21/2005
Sale price $760,000
Arm's length
Current property tax $12,007

Lot & Building Information for 18936 Thornbury Avenue, Castro Valley

Building sqft 2,936
Building class Single Family Residential Homes Used as Such (1100)
Acreage 0.14
Units 1
Year built 1959
Stories 2
Bedrooms 4
Bathrooms 3
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Zoning, Use & Area Overview

Walk Score
Transit Score
Bike Score


Zoning district Single Family Residential (R1-CSU-RV)
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 18936 Thornbury Avenue, Castro Valley

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  • • Improvements for 18936 Thornbury Avenue, Castro Valley , including their type, square footage, grade and when they were built.
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About 18936 Thornbury Avenue, Castro Valley

What is the year built & the total sq. ft. for 18936 Thornbury Avenue, Castro Valley, CA 94546?

18936 Thornbury Avenue, Castro Valley, CA 94546 was built in 1959 and has a total of 2,936 square feet.

What is the assessed value of 18936 Thornbury Avenue, Castro Valley, CA 94546 and the property tax paid?

Assessed at $1,038,508, the tax amount paid for 18936 Thornbury Avenue, Castro Valley, CA 94546 is $12,088.

When was 18936 Thornbury Avenue, Castro Valley, CA 94546 last sold and what was the last sale price?

18936 Thornbury Avenue, Castro Valley, CA 94546 was last sold in 10/21/2005 for $760,000.

Ownership Information

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Real Estate Reports:
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.
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.
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Past Sales & Property History for 18936 Thornbury Avenue, Castro Valley

Create a free account to view the complete sales history for 18936 Thornbury Avenue, Castro Valley, including title documents, transfer conditions, mortgages and liens.

Purchase date Purchase price Buyer name Seller name
10/21/2005 $760,000
05/06/1998 $124,000
04/24/1989 $320,000
       
       
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*Here are the three most recent sales for this property.


Title Documents for 18936 Thornbury 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
10/21/2005 Deed
11/19/2002 Deed
02/23/2000 Deed
12/29/1999 Deed
05/06/1998 Deed
04/24/1989 Deed
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R: Recorded date
D: Document date

Property Taxes for 18936 Thornbury Avenue, Castro Valley

Access detailed property tax data for 18936 Thornbury Avenue, 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 $12,088
Current property tax $12,007
Market value $1,038,508

Assessment History for 18936 Thornbury Avenue, Castro Valley

Here's the assessment & property tax history for 18936 Thornbury 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 $1,038,508 1.164 $12,088 +0.69%
2024-2025 $1,018,148 1.1791 $12,005 -48.84%
2023-2024 $998,191 2.3508 $23,465 +101.36%
2022-2023 $978,621 1.1908 $11,653 +2.52%
2021-2022 $959,438 1.1848 $11,367 +2.28%

Permits for 18936 Thornbury Avenue, Castro Valley

The complete history of permits filed for 18936 Thornbury 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 18936 Thornbury 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 18936 Thornbury Avenue, 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 to school (mi)
Redwood Christian Schools NR Private K-12 706 0.38
Redwood Christian Elementary School NR Private K-5 282 0.43
Alma Preschool NR Public 52 0.44
Castro Valley Adult And Career Education NR Public 0 0.48
Chabot Elementary School 8 Public K-5 470 0.53

Nearest middle schools

Name Rating Type Grade range No of students Distance to school (mi)
Redwood Christian Schools NR Private K-12 706 0.38
Alma Preschool NR Public 52 0.44
Castro Valley Adult And Career Education NR Public 0 0.48
Anchor Education, Inc. NR Private 3-12 18 0.56
Sterling West San Francisco Campus NR Private 3-11 27 0.57

Nearest high schools

Name Rating Type Grade range No of students Distance to school (mi)
Castro Valley High School 9 Public 9-12 2,799 0.29
Redwood Christian Schools NR Private K-12 706 0.38
Alma Preschool NR Public 52 0.44
Castro Valley Adult And Career Education NR Public 0 0.48
Anchor Education, Inc. NR Private 3-12 18 0.56

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

Neighbors for 18936 Thornbury Avenue, Castro Valley

Here are the neighbors for 18936 Thornbury Avenue, Castro Valley.

Address Square feet Purchase date Purchase price
18977 Thornbury Ave, Castro Valley 1,383 12/29/2025
18960 Thornbury Ave, Castro Valley 2,153
18843 Lenross CT, Castro Valley 1,188 09/10/2003
4054 Milton Ave, Castro Valley 1,400 08/01/2008
18821 Lenross CT, Castro Valley 1,278 07/07/2010 $360,000
4038 Milton Ave, Castro Valley 1,400 04/28/2022 $1,300,000
18944 Thornbury Ave, Castro Valley 1,275
18984 Thornbury Ave, Castro Valley 1,446 05/18/2021
18867 Lenross CT, Castro Valley 2,200 04/15/1994 $292,000
4005 Milton Ave, Castro Valley 2,054 05/23/2024
3982 Westbury Rd, Castro Valley 1,868 03/28/2008
18952 Thornbury Ave, Castro Valley 1,253 10/06/2006
18835 Lenross CT, Castro Valley 1,278 08/09/1989 $225,000
3904 Wilson Ave, Castro Valley 2,161 06/23/2017
4086 Milton Ave, Castro Valley 1,209 04/16/2003 $382,500
4022 Milton Ave, Castro Valley 1,400 06/25/2015
4023 Milton Ave, Castro Valley 1,456 05/29/2009 $460,000
3979 Westbury Rd, Castro Valley 1,932 12/01/2022
18851 Lenross CT, Castro Valley 1,692 04/11/2013
4006 Milton Ave, Castro Valley 1,276 07/28/1999 $250,000

Nearby ZIP Codes for 18936 Thornbury Avenue, Castro Valley

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