Alameda County  »  21336 Kahlert St

21336 Kahlert Street, Castro Valley, CA 94546 Property Information

21336 Kahlert Street, Castro Valley, CA 94546 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
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21336 Kahlert Street, Castro Valley, CA 94546
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Address

Primary address 21336 Kahlert Street, Castro Valley
Zip code 94546
County Alameda
Parcel ID 415-50-110

Sales & Tax Overview for 21336 Kahlert 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 10/05/2021
Sale price $830,000
Arm's length
Property tax $10,326

Lot & Building Information for 21336 Kahlert Street, Castro Valley

Building sqft 1,223
Building class Single Family Residential Homes Used as Such (1100)
Acreage 0.12
Units 1
Year built 1959
Stories 1
Bedrooms 2
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 Hayward Unif SCH

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

Other Property Data for 21336 Kahlert Street, Castro Valley

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  • • Improvements for 21336 Kahlert Street, Castro Valley , including their type, square footage, grade and when they were built.
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About 21336 Kahlert Street, Castro Valley

What is the year built & the total sq. ft. for 21336 Kahlert Street, Castro Valley, CA 94546?

21336 Kahlert Street, Castro Valley, CA 94546 was built in 1959 and has a total of 1,223 square feet.

What is the assessed value of 21336 Kahlert Street, Castro Valley, CA 94546 and the property tax paid?

Assessed at $880,795, the tax amount paid for 21336 Kahlert Street, Castro Valley, CA 94546 is $10,326.

When was 21336 Kahlert Street, Castro Valley, CA 94546 last sold and what was the last sale price?

21336 Kahlert Street, Castro Valley, CA 94546 was last sold in 10/05/2021 for $830,000.

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 21336 Kahlert Street, Castro Valley

Create a free account to view the complete sales history for 21336 Kahlert Street, Castro Valley, including title documents, transfer conditions, mortgages and liens.

Purchase date Purchase price Buyer name Seller name
10/05/2021 $830,000
01/15/1991 $187,000
       
       
       
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Title Documents for 21336 Kahlert Street, 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
10/05/2021 Grant Deed
10/05/2021 Letters testamentary
03/21/2016 Deed of Trust
01/15/1991 Deed
               
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R: Recorded date
D: Document date

Property Taxes for 21336 Kahlert Street, Castro Valley

Access detailed property tax data for 21336 Kahlert 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 $10,326
Market value $880,795

Assessment History for 21336 Kahlert Street, Castro Valley

Here's the assessment & property tax history for 21336 Kahlert 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 $880,795 1.1724 $10,326 +0.98%
2024-2025 $863,531 1.1842 $10,226 -22.76%
2023-2024 $846,600 1.5638 $13,239 +34.18%
2022-2023 $830,000 1.1888 $9,867 +163.26%
2021-2022 $311,597 1.2028 $3,748 +1.17%

Permits for 21336 Kahlert Street, Castro Valley

The complete history of permits filed for 21336 Kahlert 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 21336 Kahlert 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 21336 Kahlert 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
The Montessori Giving Tree NR Private K-6 12 0.27
Crossroads Christian Elementary School NR Private K-6 0 0.57
Vita Academy NR Private 1-6 0 0.66
Liber Community School NR Private 4-12 0 0.67

Nearest middle schools

Name Rating Type Grade range No of students Distance to school (mi)
Liber Community School NR Private 4-12 0 0.67
Special Education-Preschool-Laurel NR Public 1 0.74
Our Lady Of Grace School NR Private K-8 218 0.89
Stellar Preparatory High School NR Private 9 0 0.99
Faith Ringgold School of Arts and Science 1 Public K-8 111 1.02

Nearest high schools

Name Rating Type Grade range No of students Distance to school (mi)
Liber Community School NR Private 4-12 0 0.67
Special Education-Preschool-Laurel NR Public 1 0.74
Stellar Preparatory High School NR Private 9 0 0.99
Stellar Preparatory High School NR Private 9-11 26 1.09
Castro Valley High School 9 Public 9-12 2,799 1.26

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

Neighbors for 21336 Kahlert Street, Castro Valley

Here are the neighbors for 21336 Kahlert Street, Castro Valley.

Address Square feet Purchase date Purchase price
2257 Vegas Ave, Castro Valley 1,303 10/06/2025
21723 Ada St, Castro Valley 1,170 02/11/2010 $310,000
2386 Star Ave, Castro Valley 1,454 12/14/2016
2314 Star Ave, Castro Valley 1,308 10/05/2021 $745,000
21655 Redwood Rd, Castro Valley 37,287 08/23/2006
2329 Star Ave, Castro Valley 1,018 09/13/2006
2317 Vegas Ave, Castro Valley 1,122 09/30/2020 $730,000
2369 Star Ave, Castro Valley 1,236 12/06/2012
2378 Star Ave, Castro Valley 1,133 06/09/2017
2362 Star Ave, Castro Valley 924 10/19/2021
2263 Vegas Ave, Castro Valley 2,018 09/14/2012
21463 Outlook CT, Castro Valley 1,180 10/03/2000 $280,000
2357 Vegas Ave, Castro Valley 1,031 07/16/2004 $431,000
2351 Vegas Ave, Castro Valley 1,031
2370 Star Ave, Castro Valley 996 02/28/2020 $665,000
2232 Vegas Ave, Castro Valley 1,124 06/27/2023 $899,000
2361 Star Ave, Castro Valley 1,018 06/29/2004 $131,500
21735 Ada St, Castro Valley 1,170 08/19/2016 $585,000
2354 Star Ave, Castro Valley 1,016 10/18/2019 $668,000
2375 Vegas Ave, Castro Valley 1,031 03/01/2021 $624,000

Nearby ZIP Codes for 21336 Kahlert Street, Castro Valley

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