Alameda County property record for 15996 Windsor Dr, Castro Valley, CA 94578
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 5 ba · 1,445 sqft · built 1947 |
| Lot Size | 0.126 acres (5,500 sqft) |
| Owner | Individual Name on File |
| Last Sale | $636,000 (Jun 2017) |
| Tax Bill | $9,682 (2025) |
| Deeds & Mortgages | Jul 2021 Transfer Jul 2021 Mortgage + 2 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 80A-162-33 |
| Primary APN | 80A-162-33 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 5 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,445 sqft Living Area |
| Year Built | Built 1947 |
|---|---|
| Effective Year Built | Effective 1975 |
| Architectural Style | Other |
| Construction Type | Wood |
| Lot Area | 5,500 sqft (0.126 acres) |
| Street Address | 15996 WINDSOR DR |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94578-1416 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 1 |
| Census Block | 1005 |
| Census Tract | 430500 |
Source: Alameda County assessment roll, as of July 1, 2025
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on File |
|---|---|
| Co-owner | 2 Verified Secondary Owners |
| Mailing Address | 1817 23RD AVE, SAN FRANCISCO, CA 94122-4425 |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Jul 1, 2021 | Intrafamily Transfer, Transfer NORTH AMERICAN TITLE COMPANY, NORTH AMERICAN TITLE CO INC |
| Jul 1, 2021 | Intrafamily Transfer, Transfer · Conventional Mortgage HOME POINT FINANCIAL CORPORATION |
| Jul 23, 2019 | Quit Claim Deed, Transfer ATTORNEY ONLY |
| Jun 30, 2017 | Grant Deed, Transfer · Conventional Mortgage FREMONT BANK |
| Deed Names | 4 Verified Names on Deed |
|---|---|
| Last Sale | Jun 30, 2017 · Amount on Record |
| Deed Sale | Jun 30, 2017 · Amount on Record |
| Prior Sale | Jul 1, 2021 |
| Deed Document Number | 0000142809 |
| Record Updated | Jun 7, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Jul 1, 2021 |
| Property Address | 15996 WINDSOR DR, SAN LEANDRO, CA 94578-1416 |
| Document Number | 0000234737 |
| Map Reference | MB 13 PG 75-77 |
| Instrument Date | Jun 28, 2021 |
| Instrument | 2021234737 |
| Transaction Type | Transfer |
| Record Updated | Jul 21, 2021 |
| Title Company | NORTH AMERICAN TITLE COMPANY, NORTH AMERICAN TITLE CO INC |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Tenants in Common |
| Address | 1817 23RD AVE, SAN FRANCISCO, CA 94122-4425 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Jul 1, 2021 |
| Property Address | 15996 WINDSOR DR, SAN LEANDRO, CA 94578-1416 |
| Document Number | 0000234735 |
| Map Reference | MB 13 PG 75-77 |
| Instrument Date | Jun 28, 2021 |
| Instrument | 2021234735 |
| Transaction Type | Transfer |
| Record Updated | Jul 21, 2021 |
| Title Company | NORTH AMERICAN TITLE COMPANY, NORTH AMERICAN TITLE CO INC |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Tenants in Common |
| Address | 1817 23RD AVE, SAN FRANCISCO, CA 94122-4425 |
| Document Number | 0000234736 |
|---|---|
| Date | Jul 1, 2021 |
| Instrument | 2021234736 |
| Name | HOME POINT FINANCIAL CORPORATION |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Jul 1, 2051 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Jul 23, 2019 |
| Property Address | 15996 WINDSOR DR, SAN LEANDRO, CA 94578-1416 |
| Document Number | 0000140531 |
| Instrument Date | Jul 5, 2019 |
| Instrument | 140531 |
| Transaction Type | Transfer |
| Record Updated | Aug 7, 2019 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 1871 46TH AVE SAN FRANCISCO CA 941223913, SAN FRANCISCO, CA 94122-3913 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Jun 30, 2017 |
| Property Address | 15996 WINDSOR DR, SAN LEANDRO, CA 94578-1416 |
| Document Number | 0000142809 |
| Map Reference | MAP13 PG75-77 |
| Instrument Date | Jun 23, 2017 |
| Instrument | 2017142809 |
| Transaction Type | Transfer |
| Record Updated | Aug 19, 2021 |
| Title Company | CHICAGO TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 15996 WINDSOR DR, SAN LEANDRO, CA 94578-1416 |
| Document Number | 0000142810 |
|---|---|
| Date | Jun 30, 2017 |
| Instrument | 2017142810 |
| Name | FREMONT BANK |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Jul 1, 2047 |
Source: Alameda County assessment roll, as of July 1, 2025
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Unified School District | San Lorenzo Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $9,682.00 (+0.53%) | $738,115 (+4.04%) Land $221,434 Building $516,681 |
| 2023 | $9,631.00 | $709,457 Land $212,837 Building $496,620 |
Assessed value is set for property tax purposes and is not a market price estimate.
Source: FEMA National Flood Hazard Layer, effective May 25, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Claims | 2 (1978) |
| Most Recent Claim | Jan 1978 · tidal / storm surge |
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: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | None beyond ember reach |
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | EAST BAY MUD serves 1,468,000 people · EPA ID CA0110005 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Dec 2021 |
| Lead | Under 1 ppb (2022–2024) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes. This system sells water to local utilities; the supplier billing this address may be one of them.
Source: FCC Broadband Data Collection, based on 522 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
May also be available: Etheric Communications, LLC., T-Mobile USA, Unwired, Verizon.
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