San Bernardino County property record for 10270 Dorset St, Rancho Cucamonga, CA 91730
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,376 sqft · built 1957 |
| Lot Size | 0.17 acres (7,416 sqft) |
| Owner | Company Name on File |
| Tax Bill | $849 (2025) |
| Deeds & Mortgages | Jan 2020 Transfer Jan 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 1077-391-19-0000 |
| Primary APN | 1077-391-19-0000 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,376 sqft Living Area |
| 1st Floor Area | 1,376 sqft |
| Family Room | Family Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1957 |
|---|---|
| Effective Year Built | Effective 1957 |
| Architectural Style | Modern |
| Exterior Material | Block |
| Construction Type | Frame |
| Roof Material | Built-Up Asphalt |
| Lot Area | 7,416 sqft (0.17 acres) |
| Lot Dimensions | 103 ft deep x 72 ft wide |
| Garage Type | Detached |
| Garage Area | 396 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Patio/Porch |
| Porch Area | 107 sqft |
| Patio Area | 107 sqft |
| Cooling System | None |
|---|---|
| Heating System | Floor/Wall Furnace |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 10270 DORSET ST |
|---|---|
| City | RANCHO CUCAMONGA |
| State | CA |
| Zip | 91730-3016 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TRACT 5592 LOT 11 |
| Legal Subdivision | SAN ANTONIO HEIGHTS |
| Legal Tract | 5592 |
| Legal Block | 1 |
| Legal Lot Number | 11 |
| Jurisdiction | SAN BERNARDINO CA |
| Township / Civil Division | ONTARIO |
| Census Block Group | 1 |
| Census Block | 1008 |
| Census Tract | 2028 |
10270 Dorset St is owned by a company that acquired it in December 2019.
Source: San Bernardino County records, as of July 14, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 4790 SERRANO AVE, FONTANA, CA 92336-0777 |
| Owner Type | Company |
| Vesting | Borrower in Default |
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 |
|---|---|
| Jan 13, 2020 | Quit Claim Deed, Transfer AMROCK INC |
| Jan 13, 2020 | Intrafamily Transfer, Transfer · Conventional Mortgage QUICKEN LOANS INC |
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Dec 21, 2019 |
| Transfer Doc | 0000012346 |
| Record Updated | Sep 20, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SAN BERNARDINO CA |
| Recording Date | Jan 13, 2020 |
| Property Address | 10270 DORSET ST, RANCHO CUCAMONGA, CA 91730-3016 |
| Document Number | 0000012348 |
| Instrument Date | Dec 31, 2019 |
| Instrument | 12348 |
| Transaction Type | Transfer |
| Record Updated | Feb 4, 2020 |
| Title Company | AMROCK INC |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Living Trust |
| Address | 10270 DORSET ST RANCHO CUCAMONGA CA 917303016, RANCHO CUCAMONGA, CA 91730-3016 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SAN BERNARDINO CA |
| Recording Date | Jan 13, 2020 |
| Property Address | 10270 DORSET ST, RANCHO CUCAMONGA, CA 91730-3016 |
| Document Number | 0000012346 |
| Map Reference | MB 69 PG 38&39 |
| Instrument Date | Dec 21, 2019 |
| Instrument | 2020-0012346 |
| Transaction Type | Transfer |
| Record Updated | Aug 31, 2021 |
| Title Company | AMROCK INC |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants with Right of Survivorship |
| Address | 10270 DORSET ST, RANCHO CUCAMONGA, CA 91730-3016 |
| Document Number | 0000012347 |
|---|---|
| Date | Jan 13, 2020 |
| Instrument | 2020-0012347 |
| Name | QUICKEN LOANS INC |
|---|---|
| Type | Lending Institution |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Jan 1, 2050 |
The 2025 property tax bill for 10270 Dorset St was $849.
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 | Central Elementary School District (KG - 08) |
| Secondary School District | Chaffey Joint Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $73,435 (+2%) Land $12,213 Building $61,222 | |
| 2025 | $849.00 | $71,996 Land $11,974 Building $60,022 |
| 2023 | $810.00 (+1.5%) | $69,200 Land $11,509 Building $57,691 |
| 2022 | $798.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 10270 Dorset St in Zone X, an area of minimal flood risk.
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 |
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 10270 Dorset St 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 686 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: AT&T, Frontier, GeoLinks, Inyo Networks, Verizon.
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