San Bernardino County property record for 10350 Base Line Rd, Alta Loma, CA 91701
| Property Type | Mobile Home |
|---|---|
| Details | 4 bd · 2 ba · 1,234,534 sqft · built 1973 |
| Lot Size | 20.6 acres (897,597 sqft) |
| Owner | Company Name on File |
| Tax Bill | $47,230 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1076-311-01-0000 |
| Primary APN | 1076-311-01-0000 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Units | 205 Units |
| Building Area | 1,234,534 sqft Gross Area |
| Year Built | Built 1973 |
|---|---|
| Effective Year Built | Effective 1973 |
| Architectural Style | Mobile Home |
| Construction Type | Wood |
| Lot Area | 897,597 sqft |
| Sewer | Municipal |
|---|---|
| Water Source | Commercial |
| Street Address | 10350 BASE LINE RD |
|---|---|
| City | RANCHO CUCAMONGA |
| State | CA |
| Zip | 91701-6060 |
| Property Category | Residential |
| Property Type | Residential > Prefabricated > Mobile Home |
| Legal Description | W 1/2 SE 1/4 SE 1/4 SEC 35 TP 1N R 7W AND THAT PTN SW 1/4 NE 1/4 SE 1/4 SEC 35 TP 1N R 7W LYING SLY PACIFIC ELECTRIC RR CO R/W EX ST 20.606 AC M/L |
| Legal Range | 7W |
| Legal Township | WP |
| Legal Section | 35 |
| Legal Block | 1 |
| Jurisdiction | SAN BERNARDINO CA |
| Township / Civil Division | ONTARIO |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 2025 |
10350 Base Line Rd, a mobile home, is owned by a company that acquired it in February 1995.
Source: San Bernardino County records, as of July 14, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 1635 AVIATION BLVD, REDONDO BEACH, CA 90278-2807 |
| Owner Type | Company |
| Vesting | Sole Owner |
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 |
|---|---|
| Last Transfer Date | Feb 22, 1995 |
| Transfer Doc | 0000075434 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 10350 Base Line Rd was $47,230.
Source: San Bernardino County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | San Bernardino County |
| Municipality | Rancho Cucamonga City |
| Elementary School District | Alta Loma Elementary School District (KG - 08) |
| Secondary School District | Chaffey Joint Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $4,285,936 (+2%) Land $1,046,648 Building $3,239,288 | |
| 2025 | $47,230.00 | $4,201,898 Land $1,026,125 Building $3,175,773 |
| 2023 | $45,018.00 (+0.26%) | $4,038,733 Land $986,279 Building $3,052,454 |
| 2022 | $44,900.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 10350 Base Line Rd in Zone X, an area of minimal flood risk, though there have been 3 flood claims nearby since 1993.
Source: FEMA National Flood Hazard Layer, effective October 12, 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 Policies | 1 in force |
| Nearby Flood Claims | 3 (1993–2004) |
| Claims Outside the SFHA | 1 of 3 |
| Most Recent Claim | Dec 2004 · Severe Storms, Flooding, Debris Flows, And Mudslides |
| Claims by Event |
|
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.
The area around 10350 Base Line Rd has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within 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 | CUCAMONGA VALLEY WATER DISTRICT serves 213,375 people · EPA ID CA3610018 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Feb 2025 |
| 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 838 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: AT&T, GeoLinks, T-Mobile.
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