San Joaquin County property record for 41 Patterson Ave, Mountain House, CA 95391
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3.5 ba · 3,212 sqft · built 2005 |
| Lot Size | 0.155 acres (6,728 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $372,000 (Apr 2010) |
| Tax Bill | $11,155 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 254-150-110-000 |
| Primary APN | 254-150-110-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Stories | 2 Stories |
| Building Area | 3,212 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 2005 |
|---|---|
| Effective Year Built | Effective 2005 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Lot Area | 6,728 sqft (0.155 acres) |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Old Parcel Number | 254-150-11 |
|---|---|
| Street Address | 41 PATTERSON AVE |
| City | TRACY |
| State | CA |
| Zip | 95391-1056 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RL |
| Legal Description | LOT 11 |
| Legal Subdivision | MOUNTAIN HOUSE NEIGHBORHOOD F |
| Legal Block | 1 |
| Legal Lot Number | 11 |
| Jurisdiction | SAN JOAQUIN CA |
| Township / Civil Division | TRACY |
| Census Block Group | 1 |
| Census Block | 1008 |
| Census Tract | 5222 |
41 Patterson Ave is owned and occupied by two individuals who acquired it in December 2015.
Source: San Joaquin County records, as of October 13, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 41 PATTERSON AVE, TRACY, CA 95391-1056 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
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 | Apr 19, 2010 · Amount on File |
| Deed Sale | Apr 19, 2010 · Amount on File |
| Prior Sale | Sep 23, 2005 · Amount on File |
| Deed Document Number | 201052894 |
| Last Transfer Date | Dec 28, 2015 |
| Transfer Doc | 0000067972 |
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 41 Patterson Ave was $11,155 with a homeowner's exemption, up 19.1% from the year before.
Source: San Joaquin County assessment roll, as of September 24, 2025
| Type | Name |
|---|---|
| State | California |
| County | San Joaquin County |
| Municipality | Mountain House City |
| Unified School District | Lammersville Joint Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $11,155.00 (+19.06%) | ||
| 2025 | $9,369.00 Homeowner's exemption | $480,164 Land $120,040 Building $360,124 | |
| 2023 | $8,960.00 (+2.32%) Homeowner's exemption | $461,521 Land $115,380 Building $346,141 | $1,018,710 |
| 2022 | $8,757.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 41 Patterson Ave in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective September 27, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Wildfire risk around 41 Patterson Ave is low, with 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 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 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 MOUNTAIN HOUSE serves 26,400 people · EPA ID CA3910027 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Dec 2025 |
| Lead | Under 1 ppb (2025) 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 730 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 |
| Matrix Broadband Fixed Wireless | 400 / 80 |
| unWired Broadband Fixed Wireless | 400 / 50 |
| Cal.net Fixed Wireless | 100 / 20 |
May also be available: Verizon.
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