Alameda County  »  1828 Knox St

1828 Knox Street, Castro Valley, CA 94546 Property Information

1828 Knox Street, Castro Valley, CA 94546 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
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1828 Knox Street, Castro Valley, CA 94546
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Address

Primary address 1828 Knox Street, Castro Valley
Zip code 94546
County Alameda
Parcel ID 415-100-114

Sales & Tax Overview for 1828 Knox 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 10/26/2018
Sale price $745,000
Arm's length
Property tax $9,743

Lot & Building Information for 1828 Knox Street, Castro Valley

Building sqft 1,812
Building class Single Family Residential Homes Used as Such (1100)
Acreage 0.17
Units 1
Year built 1948
Stories 1
Bedrooms 3
Bathrooms 2
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Zoning, Use & Area Overview

Walk Score
Transit Score
Bike Score


Zoning district Four Family Residential (R3)
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 1828 Knox Street, Castro Valley

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  • • Improvements for 1828 Knox Street, Castro Valley , including their type, square footage, grade and when they were built.
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About 1828 Knox Street, Castro Valley

What is the year built & the total sq. ft. for 1828 Knox Street, Castro Valley, CA 94546?

1828 Knox Street, Castro Valley, CA 94546 was built in 1948 and has a total of 1,812 square feet.

What is the assessed value of 1828 Knox Street, Castro Valley, CA 94546 and the property tax paid?

Assessed at $831,047, the tax amount paid for 1828 Knox Street, Castro Valley, CA 94546 is $9,743.

When was 1828 Knox Street, Castro Valley, CA 94546 last sold and what was the last sale price?

1828 Knox Street, Castro Valley, CA 94546 was last sold in 10/26/2018 for $745,000.

Ownership Information

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Real Estate Reports:
Lucian Alixandrescu, May 27, 2026 NYC Office Market Ahead of National Curve: Manhattan Q1 Vacancy Drops to 13.1% 
New York City’s office market outpaced the U.S. on several major metrics in Q1, with Manhattan vacancy nearly 5 percentage points below the national benchmark, asking rents climbing against a downward national trend and flex inventory crossing 15 million square feet.
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.
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Past Sales & Property History for 1828 Knox Street, Castro Valley

Create a free account to view the complete sales history for 1828 Knox Street, Castro Valley, including title documents, transfer conditions, mortgages and liens.

Purchase date Purchase price Buyer name Seller name
10/26/2018 $745,000
07/31/1998 $233,500
       
       
       
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Title Documents for 1828 Knox 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
01/08/2025 Deed of trust
Request notice default/delinq
02/01/2055
02/01/2023 Reconveyance
Substitution of trustee
01/04/2023 Notice
10/21/2022 Ucc fin stmt(3&+pgs)
01/07/2021 Deed of trust 02/01/2051
07/31/2019 Deed of Trust 08/01/2049
10/26/2018 Deed of Trust 11/01/2048
10/26/2018 Grant Deed
12/27/2012 Deed of Trust 01/01/2043
12/27/2012 Grant Deed
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R: Recorded date
D: Document date

Property Taxes for 1828 Knox Street, Castro Valley

Access detailed property tax data for 1828 Knox 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 $9,743
Market value $831,047

Assessment History for 1828 Knox Street, Castro Valley

Here's the assessment & property tax history for 1828 Knox 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 $831,047 1.1724 $9,743 +0.98%
2024-2025 $814,754 1.1842 $9,648 -22.76%
2023-2024 $798,781 1.5638 $12,491 +34.17%
2022-2023 $783,121 1.1888 $9,310 +0.81%
2021-2022 $767,767 1.2028 $9,235 +1.17%

Permits for 1828 Knox Street, Castro Valley

The complete history of permits filed for 1828 Knox 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
11/18/2021
01/04/2018
       
       
       
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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 1828 Knox 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) 0.2, AE, 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 1828 Knox 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)
Vita Academy NR Private 1-6 0 0.26
The Montessori Giving Tree NR Private K-6 12 0.31
Special Education-Preschool-Laurel NR Public 1 0.43
Faith Ringgold School of Arts and Science 1 Public K-8 111 0.51
Liber Community School NR Private 4-12 0 0.72

Nearest middle schools

Name Rating Type Grade range No of students Distance to school (mi)
Special Education-Preschool-Laurel NR Public 1 0.43
Stellar Preparatory High School NR Private 9 0 0.47
Faith Ringgold School of Arts and Science 1 Public K-8 111 0.51
Liber Community School NR Private 4-12 0 0.72
All Saints Catholic School NR Private K-8 203 0.73

Nearest high schools

Name Rating Type Grade range No of students Distance to school (mi)
Special Education-Preschool-Laurel NR Public 1 0.43
Stellar Preparatory High School NR Private 9 0 0.47
Liber Community School NR Private 4-12 0 0.72
Stellar Preparatory High School NR Private 9-11 26 0.86
Hayward High School 5 Public 9-12 1,712 0.97

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

Neighbors for 1828 Knox Street, Castro Valley

Here are the neighbors for 1828 Knox Street, Castro Valley.

Address Square feet Purchase date Purchase price
22272 N 5th St, Castro Valley 1,856 01/24/2003
22020 Belle St, Castro Valley 1,288 04/29/2019
2366 Jeffer St, Castro Valley 1,868 10/31/2019
22236 N 6th St, Castro Valley 3,645 05/07/2008 $1,400,000
22231 N 6th St, Castro Valley 1,534 02/24/2010 $380,000
22062 Belle St, Castro Valley 1,018 04/28/2017 $575,000
1818 Knox St, Castro Valley 1,224 07/10/2023 $830,000
22252 N 5th St, Castro Valley 1,092 08/30/2019 $625,000
2373 Grove Way, Castro Valley 5,988 02/11/2021
1838 Knox St, Castro Valley 945 09/10/2007
2219 Grove Way, Castro Valley 4,098 09/16/2014 $700,000
22230 N 6th St, Castro Valley 3,645 05/07/2008 $1,400,000
22237 N 6th St, Castro Valley 1,255 07/23/2015
2275 Grove Way, Castro Valley 35,164 08/20/2019 $12,900,000
22319 Redwood Rd, Castro Valley 6,185 05/31/2006 $2,100,000
1920 Knox St, Castro Valley 3,008 10/17/2013
22274 N 6th St, Castro Valley 2,956 04/10/2013
22048 Belle St, Castro Valley 1,672 02/25/2021 $135,000
22260 N 5th St, Castro Valley 1,192 07/12/2023
1876 Knox St, Castro Valley 1,533 05/10/2010 $259,954

Nearby ZIP Codes for 1828 Knox Street, Castro Valley

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