| Primary address | 20406 Redwood Road, Castro Valley |
| Zip code | 94546 |
| County | Alameda |
| Parcel ID | 84C-770-5-11 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 01/12/2021 |
| Sale price | $2,046,000 |
| Arm's length | Register |
| Property tax | $24,569 |
| Zoning district | Register |
| School district | Castro Vly 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).
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This Medical - Dental Building (9300) located at 20406 Redwood Road, Castro Valley, CA 94546 has a total of 5,807 square feet and a current price per square foot of $352.
What is the year built & the current market value of 20406 Redwood Road, Castro Valley, CA 94546?20406 Redwood Road, Castro Valley, CA 94546 was built in 1968 and has a current tax assessor's market value of $2,110,718.
How many commercial spaces does this building have?This building has 7 commercial spaces available for lease. There are 1 active listings at this address.
View detailed property contacts like owners, building management, representatives from permits and tenants with a free account.
| Listing type | For Lease |
|---|---|
| Listing date | 05/14/2026 |
| Last updated | 06/05/2026 |
Medical office suite with easy access to I-580, Eden Medical Center, Castro Valley BART and ample onsite parking.Medical Office Lease
| Suite name | Space type | Lease rate | Available space | Brokers |
|---|---|---|---|---|
| 20406 Redwood Rd., Suite B | Medical Office | $27.96/Sqft/Year | 830 | Mark Rinkle |
Create a free account to view the complete sales history for 20406 Redwood Road, Castro Valley, including title documents, transfer conditions, mortgages and liens.
*Here are the three most recent sales for this property.
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 20406 Redwood Road, 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 | $24,569 |
| Market value | $2,110,718 |
Here's the assessment & property tax history for 20406 Redwood Road, 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 | $2,110,718 | 1.164 | $24,569 | +0.69% |
| 2024-2025 | $2,069,340 | 1.1791 | $24,400 | -48.84% |
| 2023-2024 | $2,028,780 | 2.3508 | $47,693 | +101.36% |
| 2022-2023 | $1,989,000 | 1.1908 | $23,685 | +20.97% |
| 2021-2022 | $1,652,609 | 1.1848 | $19,580 | +2.29% |
The complete history of permits filed for 20406 Redwood Road, 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.
| Total population | 44,855 |
| Median age | 41.7 |
| Average household income | $161,274 |
| Family households | 74.3% |
| Occupied housing units | 15,565 |
| Owner occupied units | 66.3% |
| Average number of people per household | 2.84 |
| Median year structure built | 1960 |
| Median value for units with a mortgage | $1,065,100 |
| Median value for units without a mortgage | $995,000 |
Create a free account to unlock extended information for 20406 Redwood Road, 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 20406 Redwood Road, 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 |
Here are the neighbors for 20406 Redwood Road, Castro Valley.