San Joaquin County property record for 16261 Williamstowne Dr, Lathrop, CA 95330
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,353 sqft · built 1994 |
| Lot Size | 0.151 acres (6,561 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $135,000 (Jul 1999) |
| Tax Bill | $2,596 (2026) |
| Flood Zone | Zone X (reduced by levee) |
| APN | 196-490-050-000 |
| Primary APN | 196-490-050-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Stories | 1 Story |
| Building Area | 1,353 sqft Living Area |
| 1st Floor Area | 1,353 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1994 |
|---|---|
| Effective Year Built | Effective 1994 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 6,561 sqft (0.151 acres) |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Old Parcel Number | 196-490-05 |
|---|---|
| Street Address | 16261 WILLIAMSTOWNE DR |
| City | LATHROP |
| State | CA |
| Zip | 95330-9345 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | MAP A1 4 LOT 107 |
| Legal Subdivision | HORIZON PARK |
| Legal Block | 1 |
| Legal Lot Number | 107 |
| Jurisdiction | SAN JOAQUIN CA |
| Township / Civil Division | MANTECA |
| Census Block Group | 1 |
| Census Block | 1005 |
| Census Tract | 5130 |
16261 Williamstowne Dr is owned and occupied by two individuals who bought it in July 1999.
Source: San Joaquin County records, as of October 13, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 16261 WILLIAMSTOWNE DR, LATHROP, CA 95330-9345 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jul 30, 1999 · Amount on File |
| Deed Sale | Jul 30, 1999 · Amount on File |
| Prior Sale | May 5, 1994 · Amount on File |
| Deed Document Number | 199997178 |
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 16261 Williamstowne Dr was $2,596 with a homeowner's exemption, up 0.9% from the year before.
Source: San Joaquin County assessment roll, as of September 24, 2025
| Type | Name |
|---|---|
| State | California |
| County | San Joaquin County |
| Municipality | Lathrop City |
| Unified School District | Manteca Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $2,596.00 (+0.93%) | ||
| 2025 | $2,572.00 Homeowner's exemption | $207,474 Land $53,786 Building $153,688 | |
| 2023 | $2,469.00 (+1.48%) Homeowner's exemption | $199,420 Land $51,699 Building $147,721 | $448,650 |
| 2022 | $2,433.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 16261 Williamstowne Dr in Zone X, where a levee reduces flood risk.
Source: FEMA National Flood Hazard Layer, effective September 27, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X reduced by levee · depends on levee performance |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 10 (0% premium discount) |
| Nearby Flood Policies | 4 in force |
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 16261 Williamstowne 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 99.1% of the US · lower than 99.2% 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 | CITY OF LATHROP serves 38,596 people · EPA ID CA3910015 |
|---|---|
| Water Source | Purchased surface water from SOUTH SAN JOAQUIN IRRIGATION DISTRICT |
| Last State Inspection | Dec 2024 |
| Also Mapped Here | SAN JOAQUIN COUNTY-MOKELUMNE ACRES |
| 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.
Source: FCC Broadband Data Collection, based on 120 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Ayera Technologies Fixed Wireless | 1,000 / 500 |
| Cal.net Fixed Wireless | 100 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Frontier, unWired Broadband, Verizon.
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