San Joaquin County property record for 45 S Alonsa Ln, Mountain House, CA 95391
| Property Type | Common Area (Residential) |
|---|---|
| Lot Size | 0.154 acres (6,688 sqft) |
| Owner | Company Name on File |
| Flood Zone | Zone X (minimal risk) |
| APN | 254-490-150-000 |
| Primary APN | 254-490-150-000 |
|---|---|
| Alternative APN |
|
| Lot Area | 6,688 sqft (0.154 acres) |
|---|
| Old Parcel Number | 254-490-15 |
|---|---|
| Street Address | 45 S ALONSA LN |
| City | TRACY |
| State | CA |
| Zip | 95391-3039 |
| Property Category | Other |
| Property Type | Other > Common Area (Residential) |
| Local Zoning Code | RMH |
| Legal Description | 06-FM PT OF 254-230-02/RM 40-018 |
| Legal Subdivision | MOUNTAIN HOUSE CAMBRIDGE PLACE |
| Legal Block | 2 |
| Jurisdiction | SAN JOAQUIN CA |
| Township / Civil Division | TRACY |
| Census Block Group | 2 |
| Census Block | 2000 |
| Census Tract | 5221 |
45 S Alonsa Ln is owned by a company.
Source: San Joaquin County records, as of October 13, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 6210 STONERIDGE MALL RD, PLEASANTON, CA 94588-3268 |
| Owner Type | Company |
| Vesting | Company |
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 | Name on Deed |
|---|---|
| Record Updated | Oct 29, 2026 |
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) |
FEMA maps place 45 S Alonsa Ln 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 45 S Alonsa Ln is low, with a 0.02% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 67% of the US · lower than 81% of California |
|---|---|
| Wildfire Likelihood | 0.02% 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 611 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 2,000 |
| Matrix Broadband Fixed Wireless | 400 / 80 |
| unWired Broadband Fixed Wireless | 400 / 50 |
| Verizon Fixed Wireless | 300 / 20 |
| Cal.net Fixed Wireless | 100 / 20 |
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