| Primary address | 1856 Knox Street, Castro Valley |
| Alternate address(es) | 1858 Knox St |
| Zip code | 94546 |
| County | Alameda |
| Parcel ID | 415-100-111 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 12/08/2021 |
| Sale price | $770,000 |
| Arm's length | Register |
| Property tax | $9,580 |
| Building sqft | 884 |
| Building class | Single Family Residential Homes Used as Such (1100) |
| Acreage | 0.17 |
| Units | 1 |
| Year built | 1922 |
| Stories | 1 |
| Bedrooms | 2 |
| Bathrooms | 1 |
| 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.
Property reports include comprehensive occupancy, improvement and development information (where available).
Create a free account to access valuable data points such as:
1856 Knox Street, Castro Valley, CA 94546 was built in 1922 and has a total of 884 square feet.
What is the assessed value of 1856 Knox Street, Castro Valley, CA 94546 and the property tax paid?Assessed at $817,123, the tax amount paid for 1856 Knox Street, Castro Valley, CA 94546 is $9,579.
When was 1856 Knox Street, Castro Valley, CA 94546 last sold and what was the last sale price?1856 Knox Street, Castro Valley, CA 94546 was last sold in 12/08/2021 for $770,000.
View detailed property contacts like owners, building management, representatives from permits and tenants with a free account.
Create a free account to view the complete sales history for 1856 Knox Street, Castro Valley, including title documents, transfer conditions, mortgages and liens.
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.
R: Recorded date
D: Document date
Access detailed property tax data for 1856 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 | $9,580 |
| Market value | $817,123 |
Here's the assessment & property tax history for 1856 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 | $817,123 | 1.1724 | $9,580 | +0.98% |
| 2024-2025 | $801,107 | 1.1842 | $9,487 | -22.76% |
| 2023-2024 | $785,400 | 1.5638 | $12,282 | +34.18% |
| 2022-2023 | $770,000 | 1.1888 | $9,154 | +85.26% |
| 2021-2022 | $410,810 | 1.2028 | $4,941 | +1.17% |
The complete history of permits filed for 1856 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.
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.
Create a free account to unlock extended information for 1856 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) | X (See more on map) |
| Fire hazard zone | See more on map |
| Faults and tsunami inundation zone map | Register |
| Landslides and liquefaction map | Register |
Access the detailed traffic volume map for 1856 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 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Vita Academy | NR | Private | 1-6 | 0 | 0.23 |
| The Montessori Giving Tree | NR | Private | K-6 | 12 | 0.33 |
| Special Education-Preschool-Laurel | NR | Public | 1 | 0.41 | |
| Faith Ringgold School of Arts and Science | 1 | Public | K-8 | 111 | 0.50 |
| All Saints Catholic School | NR | Private | K-8 | 203 | 0.74 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Special Education-Preschool-Laurel | NR | Public | 1 | 0.41 | |
| Stellar Preparatory High School | NR | Private | 9 | 0 | 0.46 |
| Faith Ringgold School of Arts and Science | 1 | Public | K-8 | 111 | 0.50 |
| All Saints Catholic School | NR | Private | K-8 | 203 | 0.74 |
| Liber Community School | NR | Private | 4-12 | 0 | 0.75 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Special Education-Preschool-Laurel | NR | Public | 1 | 0.41 | |
| Stellar Preparatory High School | NR | Private | 9 | 0 | 0.46 |
| Liber Community School | NR | Private | 4-12 | 0 | 0.75 |
| Stellar Preparatory High School | NR | Private | 9-11 | 26 | 0.87 |
| Hayward High School | 5 | Public | 9-12 | 1,712 | 0.96 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 1856 Knox Street, Castro Valley.