Alameda County  »  18846 California St

18846 California Street, Castro Valley, CA 94546 Property Information

18846 California Street, Castro Valley, CA 94546 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
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18846 California Street, Castro Valley, CA 94546
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Address

Primary address 18846 California Street, Castro Valley
Zip code 94546
County Alameda
Parcel ID 84D-1352-5

Sales & Tax Overview for 18846 California Street, Castro Valley

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

Property tax $3,500

Lot & Building Information for 18846 California Street, Castro Valley

Building sqft 1,415
Building class Single Family Residential Homes Used as Such (1100)
Acreage 0.14
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 18846 California Street, Castro Valley

Property reports include comprehensive occupancy, improvement and development information (where available).
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  • • Improvements for 18846 California Street, Castro Valley , including their type, square footage, grade and when they were built.
  • Development maps such as planimetric, zoning, land use and urban landscape maps (building age and stories).
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About 18846 California Street, Castro Valley

What is the year built & the total sq. ft. for 18846 California Street, Castro Valley, CA 94546?

18846 California Street, Castro Valley, CA 94546 was built in 1955 and has a total of 1,415 square feet.

What is the assessed value of 18846 California Street, Castro Valley, CA 94546 and the property tax paid?

Assessed at $300,656, the tax amount paid for 18846 California Street, Castro Valley, CA 94546 is $3,499.

Ownership Information

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Real Estate Reports:
Laura Pop-Badiu, Apr 09, 2026 How to Do a Title Search on Property Yourself: A Step-by-Step Online GuideĀ 
A property title search is the process of reviewing public records to confirm who legally owns a property and whether there are any liens, mortgages or legal claims attached to it. Explore our step-by-step guide explaining how you can perform a title search yourself. 
Laura Pop-Badiu, Mar 31, 2026 Property Owners Map: How to See Ownership Details and Parcel Lines
If you’re trying to find property owners by map, evaluate nearby parcels or understand how properties connect, a map-based approach makes the process faster, clearer and more intuitive.
Eliza Theiss, Mar 19, 2026 Cheaper in the City? Nearly 100 Communities in Suburban NYC Surpass $1M
New Yorkers planning a move to the suburbs increasingly find their options limited, after suburban home values shot up twice as fast as NYC medians over the last decade. While larger homes and better prices were long the norm outside the five boroughs, today, many NYC buyers find their option restricted to a handful of suburban markets.
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Past Sales & Property History for 18846 California Street, Castro Valley

Create a free account to view the complete sales history for 18846 California Street, Castro Valley, including title documents, transfer conditions, mortgages and liens.

No recorded sales for this property.

Title Documents for 18846 California Street, Castro Valley

Data not available for this property.

Property Taxes for 18846 California Street, Castro Valley

Access detailed property tax data for 18846 California 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 $3,500
Market value $300,656

Assessment History for 18846 California Street, Castro Valley

Here's the assessment & property tax history for 18846 California 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 $300,656 1.164 $3,500 +0.69%
2024-2025 $294,761 1.1791 $3,476 -48.84%
2023-2024 $288,982 2.3508 $6,793 +101.36%
2022-2023 $283,316 1.1908 $3,374 +2.51%
2021-2022 $277,762 1.1848 $3,291 +2.29%

Permits for 18846 California Street, Castro Valley

The complete history of permits filed for 18846 California 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.

Issued Permit Type Status
11/28/2023
10/06/2021
       
       
       
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Castro Valley residential market stats

Median Sale Price
$1,042,500
-3.4% YoY
Median Price/Sqft
$652
-4.7% YoY
Alameda County Median Sale Price
$1,020,000
-4.2% 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 18846 California 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 18846 California Street, 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 0.19
Alma Preschool NR Public 52 0.24
Redwood Christian Elementary School NR Private K-5 282 0.27
Castro Valley Adult And Career Education NR Public 0 0.28
Proctor Elementary School 8 Public K-5 584 0.55

Nearest middle schools

Name Rating Type Grade range No of students Distance to school (mi)
Redwood Christian Schools NR Private K-12 706 0.19
Alma Preschool NR Public 52 0.24
Castro Valley Adult And Career Education NR Public 0 0.28
Our Lady Of Grace School NR Private K-8 218 0.70
Anchor Education, Inc. NR Private 3-12 18 0.75

Nearest high schools

Name Rating Type Grade range No of students Distance to school (mi)
Redwood Christian Schools NR Private K-12 706 0.19
Alma Preschool NR Public 52 0.24
Castro Valley High School 9 Public 9-12 2,799 0.27
Castro Valley Adult And Career Education NR Public 0 0.28
Anchor Education, Inc. NR Private 3-12 18 0.75

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

Neighbors for 18846 California Street, Castro Valley

Here are the neighbors for 18846 California Street, Castro Valley.

Address Square feet Purchase date Purchase price
4305 Seven Hills Rd, Castro Valley 1,776 06/03/2024 $1,685,000
18985 Thornbury Ave, Castro Valley 1,194 06/26/2003
18989 Patton Dr, Castro Valley 1,187 10/29/2024
3832 Wilson Ave, Castro Valley 1,000 08/26/2021
18845 California St, Castro Valley 1,781 02/23/2005
4120 Wilson Ave, Castro Valley 1,894 08/13/2007
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
18959 California St, Castro Valley 1,143 10/03/2023
4321 Seven Hills Rd, Castro Valley 1,144 10/22/2020
18978 Vaughn Ave, Castro Valley 1,344 12/09/2025
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
18953 Patton Dr, Castro Valley 1,186 08/26/2024
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
3781 Almond CT, Castro Valley 1,100 09/17/2013

Nearby ZIP Codes for 18846 California Street, Castro Valley

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