Alameda County  »  18985 Thornbury Ave

18985 Thornbury Avenue, Castro Valley, CA 94546 Property Information

18985 Thornbury Avenue, Castro Valley, CA 94546 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
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18985 Thornbury Avenue, Castro Valley, CA 94546
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Address

Primary address 18985 Thornbury Avenue, Castro Valley
Zip code 94546
County Alameda
Parcel ID 84D-1342-52

Sales & Tax Overview for 18985 Thornbury Avenue, Castro Valley

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

Current property tax $2,858

Lot & Building Information for 18985 Thornbury Avenue, Castro Valley

Building sqft 1,194
Building class Single Family Residential Homes Used as Such (1100)
Acreage 0.12
Units 1
Year built 1955
Stories 1
Bedrooms 3
Bathrooms 2
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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 18985 Thornbury Avenue, Castro Valley

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  • • Improvements for 18985 Thornbury Avenue, Castro Valley , including their type, square footage, grade and when they were built.
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About 18985 Thornbury Avenue, Castro Valley

What is the year built & the total sq. ft. for 18985 Thornbury Avenue, Castro Valley, CA 94546?

18985 Thornbury Avenue, Castro Valley, CA 94546 was built in 1955 and has a total of 1,194 square feet.

What is the assessed value of 18985 Thornbury Avenue, Castro Valley, CA 94546 and the property tax paid?

Assessed at $252,532, the tax amount paid for 18985 Thornbury Avenue, Castro Valley, CA 94546 is $2,939.

When was 18985 Thornbury Avenue, Castro Valley, CA 94546 last sold?

18985 Thornbury Avenue, Castro Valley, CA 94546 was last sold in 06/26/2003.

Ownership Information

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Real Estate Reports:
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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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Past Sales & Property History for 18985 Thornbury Avenue, Castro Valley

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No recorded sales for this property.

Title Documents for 18985 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
06/26/2003 Deed
06/26/2003 Deed
               
               
               
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R: Recorded date
D: Document date

Property Taxes for 18985 Thornbury Avenue, Castro Valley

Access detailed property tax data for 18985 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 $2,939
Current property tax $2,858
Market value $252,532

Assessment History for 18985 Thornbury Avenue, Castro Valley

Here's the assessment & property tax history for 18985 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 $252,532 1.164 $2,939 +0.69%
2024-2025 $247,581 1.1791 $2,919 -48.84%
2023-2024 $242,727 2.3508 $5,706 +101.36%
2022-2023 $237,969 1.1908 $2,834 +2.52%
2021-2022 $233,303 1.1848 $2,764 +2.28%

Permits for 18985 Thornbury Avenue, Castro Valley

The complete history of permits filed for 18985 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.

Issued Permit Type Status
11/08/2017
       
       
       
       
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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 18985 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 18985 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.

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Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance to school (mi)
Redwood Christian Schools NR Private K-12 706 0.39
Redwood Christian Elementary School NR Private K-5 282 0.42
Alma Preschool NR Public 52 0.47
Chabot Elementary School 8 Public K-5 470 0.49
Castro Valley Adult And Career Education NR Public 0 0.51

Nearest middle schools

Name Rating Type Grade range No of students Distance to school (mi)
Redwood Christian Schools NR Private K-12 706 0.39
Alma Preschool NR Public 52 0.47
Castro Valley Adult And Career Education NR Public 0 0.51
Anchor Education, Inc. NR Private 3-12 18 0.51
Sterling West San Francisco Campus NR Private 3-11 27 0.53

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 0.25
Redwood Christian Schools NR Private K-12 706 0.39
Alma Preschool NR Public 52 0.47
Castro Valley Adult And Career Education NR Public 0 0.51
Anchor Education, Inc. NR Private 3-12 18 0.51

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

Neighbors for 18985 Thornbury Avenue, Castro Valley

Here are the neighbors for 18985 Thornbury Avenue, Castro Valley.

Address Square feet Purchase date Purchase price
4262 Nando CT, Castro Valley 1,296 10/14/2022 $980,000
4286 Nando CT, Castro Valley 1,705 10/23/2019
4305 Seven Hills Rd, Castro Valley 1,776 06/03/2024 $1,685,000
18989 Patton Dr, Castro Valley 1,187 10/29/2024
3832 Wilson Ave, Castro Valley 1,000 08/26/2021
18846 California St, Castro Valley 1,415
18845 California St, Castro Valley 1,781 02/23/2005
4120 Wilson Ave, Castro Valley 1,894 08/13/2007
19011 Mayberry Dr, Castro Valley 1,336 06/27/2023 $900,000
18858 California St, Castro Valley 1,564 03/13/2009 $445,000
18839 California St, Castro Valley 2,024 08/25/2022 $1,245,000
18978 Vaughn Ave, Castro Valley 1,344 12/09/2025
4321 Seven Hills Rd, Castro Valley 1,144 02/10/2026
18949 Redwood Rd, Castro Valley 15,998 06/17/2008 $3,000,000
18992 Thornbury Ave, Castro Valley 1,272 05/30/2019
3856 Wilson Ave, Castro Valley 1,232
4156 Wilson Ave, Castro Valley 1,424 08/04/2021 $1,128,000
18852 California St, Castro Valley 1,548 07/20/2010
4130 Wilson Ave, Castro Valley 1,450 04/23/2024
18959 Vaughn Ave, Castro Valley 1,249 10/15/2015 $635,000

Nearby ZIP Codes for 18985 Thornbury Avenue, Castro Valley

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