Alameda County property record for 15913 Windsor Dr, Castro Valley, CA 94578 · Last verified October 2025
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3 ba · 2,010 sqft · built 1947 |
| Lot Size | 0.132 acres (5,775 sqft) |
| Owner | 2 Company Names on File |
| Last Sale | $435,000 (Aug 2010) |
| Tax Bill | $7,438 (2025) |
| Deeds & Mortgages | May 2021 Mortgage May 2018 Transfer + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 80A-163-6 |
| Primary APN | 80A-163-6 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 2,010 sqft Living Area |
| Year Built | Built 1947 |
|---|---|
| Architectural Style | Other |
| Construction Type | Wood |
| Lot Area | 5,775 sqft (0.132 acres) |
| Street Address | 15913 WINDSOR DR |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94578-1415 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TRACT 813 BLK F LOT 16 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 1 |
| Census Block | 1004 |
| Census Tract | 430500 |
Source: Alameda County records · APN 80A-163-6
Assessment roll updated July 1, 2025 · Last verified October 2025
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 15913 WINDSOR DR, CASTRO VALLEY, CA 94578-1415 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Date | Document |
|---|---|
| May 13, 2021 | Deed of Trust, Mortgage · Conventional Mortgage PROVIDENT CU |
| May 21, 2018 | Quit Claim Deed, Transfer ATTORNEY ONLY |
| May 21, 2018 | Quit Claim Deed, Transfer ATTORNEY ONLY |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Aug 09, 2010 · Amount on Record |
| Deed Sale | Aug 09, 2010 · Amount on Record |
| Prior Sale | Mar 05, 2007 |
| Deed Document Number | 2010226946 |
| Record Updated | Jun 08, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 15913 WINDSOR DR, SAN LEANDRO, CA 94578-1415 |
| Transaction Type | Mortgage |
| Record Updated | Jun 03, 2021 |
| Title Company | FIDELITY NATIONAL TITLE |
| Name | Verified Name |
|---|---|
| Address | 15913 WINDSOR DR, SAN LEANDRO, CA 94578-1415 |
| Document Number | 0000183244 |
|---|---|
| Date | May 13, 2021 |
| Instrument | 2021183244 |
| Name | PROVIDENT CU |
|---|---|
| Type | Credit Union |
| Address | REDWOOD CITY, CA 94065 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 181 Months |
| Due | Jun 01, 2036 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | May 21, 2018 |
| Property Address | 15913 WINDSOR DR, SAN LEANDRO, CA 94578-1415 |
| Document Number | 0000100787 |
| Instrument Date | Apr 02, 2018 |
| Instrument | 100787 |
| Transaction Type | Transfer |
| Record Updated | Nov 21, 2018 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property |
| Address | 15913 WINDSOR DR SAN LEANDRO CA 945781415, SAN LEANDRO, CA 94578-1415 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | May 21, 2018 |
| Property Address | 15913 WINDSOR DR, SAN LEANDRO, CA 94578-1415 |
| Document Number | 0000100788 |
| Instrument Date | Apr 02, 2018 |
| Instrument | 100788 |
| Transaction Type | Transfer |
| Record Updated | Nov 21, 2018 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | 15913 WINDSOR DR SAN LEANDRO CA 945781415, SAN LEANDRO, CA 94578-1415 |
Source: Alameda County records · Assessment roll updated July 1, 2025 · Last verified October 2025
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Unified School District | San Lorenzo Unified School District (KG - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $7,438.00 (+3.85%) Homeowner's exemption | $557,277 (+4.04%) Land $167,183 Building $390,094 |
| 2023 | $7,162.00 Homeowner's exemption | $535,645 Land $160,693 Building $374,952 |
Source: FEMA National Flood Hazard Layer, Alameda County (06001C), updated May 25, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060014305001, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Nearby Flood Claims | 2 (1978) |
| Most Recent Claim | Jan 1978, tidal / storm surge |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 522 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| AT&T | Fiber | 5,000 / 5,000 |
| Xfinity | Cable | 2,000 / 250 |
May also be available at this address: Verizon, Unwired, Etheric Communications, LLC., AT&T, T-Mobile USA. Availability varies by address; speeds are provider-advertised maximums, not measured.
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