Alameda County property record for 16231 Windsor Dr, Castro Valley, CA 94578
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,599 sqft · built 1947 |
| Lot Size | 0.126 acres (5,500 sqft) |
| Owner | Individual Name on File |
| Last Sale | $450,000 (Sep 2014) |
| Tax Bill | $7,241 (2025) |
| Deeds & Mortgages | Mar 2024 Line of Credit Apr 2020 Loan Modification + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 80A-166-13 |
| Primary APN | 80A-166-13 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 1,599 sqft Living Area |
| Year Built | Built 1947 |
|---|---|
| Effective Year Built | Effective 1947 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 5,500 sqft (0.126 acres) |
| Parking Spaces | 1 Parking Space |
| Street Address | 16231 WINDSOR DR |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94578-1421 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00012 BLK: 000B TR: 0813 |
| Legal Subdivision | TRACT 813 |
| Legal Tract | 0813 |
| Legal Block | B |
| Legal Lot Number | 12 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 1 |
| Census Block | 1020 |
| Census Tract | 430500 |
16231 Windsor Dr is owned and occupied by an individual who acquired it in October 2016.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 16231 WINDSOR DR, CASTRO VALLEY, CA 94578-1421 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Single Person |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Mar 13, 2024 | Deed of Trust, Mortgage · Line of Credit FIGURE LENDING LLC |
| Apr 23, 2020 | Loan Modification, Mortgage · Conventional Mortgage WELLS FARGO BK |
| Aug 3, 2017 | Deed of Trust, Mortgage · Conventional Mortgage MISCELLANEOUS GOVT AGCY |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Sep 5, 2014 · Amount on File |
| Deed Sale | Sep 5, 2014 · Amount on File |
| Prior Sale | Aug 28, 2013 · Amount on File |
| Deed Document Number | 2014218324 |
| Last Transfer Date | Oct 21, 2016 |
| Transfer Doc | 0000284114 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 16231 WINDSOR DR, SAN LEANDRO, CA 94578-1421 |
| Transaction Type | Mortgage |
| Record Updated | Apr 18, 2024 |
| Title Company | SERVICELINK |
| Name | Verified Name |
|---|---|
| Address | 16231 WINDSOR DR, SAN LEANDRO, CA 94578-1421 |
| Document Number | 0000035427 |
|---|---|
| Date | Mar 13, 2024 |
| Instrument | 2024035427 |
| Name | FIGURE LENDING LLC |
|---|---|
| Type | Mortgage Company |
| Address | CHARLOTTE, NC 28202 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Mar 12, 2054 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Loan Modification |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 16231 WINDSOR DR, SAN LEANDRO, CA 94578-1421 |
| Document Number | 0000118100 |
| Instrument Date | Apr 23, 2020 |
| Transaction Type | Mortgage |
| Record Updated | Jul 3, 2020 |
| Title Company | SERVICELINK LOAN MOD SOLUTIONS, SERVICELINK LN MOD SOLUTIONS |
| Name | Verified Name |
|---|---|
| Relationship | Separate Estate/Property |
| Address | 16231 WINDSOR DR SAN LEANDRO CA 945781421, SAN LEANDRO, CA 94578-1421 |
| Document Number | 0000118100 |
|---|---|
| Date | May 21, 2020 |
| Instrument | 118100 |
| Name | WELLS FARGO BK |
|---|---|
| Type | Bank |
| Address | DES MOINES, IA 50328 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 480 Months |
| Due | May 20, 2060 |
| Rate | 3.87% |
|---|
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 16231 WINDSOR DR, SAN LEANDRO, CA 94578-1421 |
| Document Number | 0000186913 |
| Instrument Date | Aug 3, 2017 |
| Transaction Type | Mortgage |
| Record Updated | Sep 26, 2017 |
| Title Company | OTHER |
| Name | Verified Name |
|---|---|
| Relationship | Separate Estate/Property |
| Address | 16231 WINDSOR DR SAN LEANDRO CA 945781421, SAN LEANDRO, CA 94578-1421 |
| Document Number | 0000186913 |
|---|---|
| Date | Aug 25, 2017 |
| Instrument | 186913 |
| Name | MISCELLANEOUS GOVT AGCY |
|---|---|
| Address | RIVERSIDE, CA 92517 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
The 2025 property tax bill for 16231 Windsor Dr was $7,241 with a homeowner's exemption.
Source: Alameda County assessment roll, as of August 5, 2026
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Unified School District | San Lorenzo Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $544,627 (+0.71%) Land $165,488 Building $386,139 | ||
| 2025 | $7,241.00 Homeowner's exemption | $540,814 Land $162,244 Building $378,570 | |
| 2023 | $6,972.00 Homeowner's exemption | $519,817 Land $155,945 Building $363,872 | $735,210 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 16231 Windsor Dr in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 1978.
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.
Wildfire risk around 16231 Windsor Dr is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 94% of the US · lower than 96% of California |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond ember reach |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
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 639 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom Fiber | 10,000 / 10,000 |
| Xfinity Cable | 2,000 / 2,000 |
May also be available: AT&T, GeoLinks, T-Mobile, Verizon.
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