San Bernardino County property record for 8531 18th St, Alta Loma, CA 91701
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,628 sqft · built 1962 |
| Lot Size | 0.166 acres (7,242 sqft) |
| Owner | Individual Name on File |
| Last Sale | $239,909 (Jun 2003) |
| Tax Bill | $3,800 (2025) |
| Deeds & Mortgages | Feb 2022 Mortgage Apr 2018 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 0202-252-10-0000 |
| Primary APN | 0202-252-10-0000 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,628 sqft Living Area |
| Gross Area | 2,012 sqft |
| 1st Floor Area | 1,628 sqft |
| Family Room | Family Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1962 |
|---|---|
| Effective Year Built | Effective 1962 |
| Architectural Style | Modern |
| Exterior Material | Stucco |
| Construction Type | Frame |
| Roof Material | Built-Up Asphalt |
| Lot Area | 7,242 sqft (0.166 acres) |
| Lot Dimensions | 102 ft deep x 71 ft wide |
| View / Lot | Average |
| Garage Type | Attached |
| Garage Area | 384 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Patio/Porch |
| Porch Area | 240 sqft |
| Patio Area | 240 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 8531 18TH ST |
|---|---|
| City | RANCHO CUCAMONGA |
| State | CA |
| Zip | 91701-4502 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | TRACT 6517 LOT 102 |
| Legal Subdivision | TRACT NUMBER 6517 |
| Legal Tract | 6517 |
| Legal Block | 1 |
| Legal Lot Number | 102 |
| Jurisdiction | SAN BERNARDINO CA |
| Township / Civil Division | ONTARIO |
| Census Block Group | 1 |
| Census Block | 1014 |
| Census Tract | 812 |
8531 18th St is owned and occupied by an individual who acquired it in February 2018.
Source: San Bernardino County records, as of July 14, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 8531 18TH ST, RANCHO CUCAMONGA, CA 91701-4502 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| 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.
| Date | Document |
|---|---|
| Feb 16, 2022 | Deed of Trust, Mortgage · Conventional Mortgage UNITED WHOLESALE MORTGAGE |
| Apr 2, 2018 | Intrafamily Transfer, Transfer · Conventional Mortgage ACOPIA LLC |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jun 26, 2003 · Amount on File |
| Deed Sale | Jun 26, 2003 · Amount on File |
| Deed Document Number | 2003467094 |
| Last Transfer Date | Feb 27, 2018 |
| Transfer Doc | 0000113480 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN BERNARDINO CA |
| Property Address | 8531 18TH ST, ALTA LOMA, CA 91701-4502 |
| Transaction Type | Mortgage |
| Record Updated | Mar 4, 2022 |
| Name | Verified Name |
|---|---|
| Address | 8531 18TH ST, RANCHO CUCAMONGA, CA 91701-4502 |
| Document Number | 0000063669 |
|---|---|
| Date | Feb 16, 2022 |
| Instrument | 2022-0063669 |
| Name | UNITED WHOLESALE MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Address | PONTIAC, MI 48341 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Mar 1, 2052 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SAN BERNARDINO CA |
| Recording Date | Apr 2, 2018 |
| Property Address | 8531 18TH ST, ALTA LOMA, CA 91701-4502 |
| Document Number | 0000113480 |
| Map Reference | MB 82 PG 24-26 |
| Instrument Date | Feb 27, 2018 |
| Instrument | 2018-0113480 |
| Transaction Type | Transfer |
| Record Updated | Aug 31, 2021 |
| Title Company | FIRST AMERICAN TITLE COMPANY |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 8531 18TH ST, ALTA LOMA, CA 91701-4502 |
| Document Number | 0000113481 |
|---|---|
| Date | Apr 2, 2018 |
| Instrument | 2018-0113481 |
| Name | ACOPIA LLC |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Apr 1, 2048 |
The 2025 property tax bill for 8531 18th St was $3,800 with a homeowner's exemption.
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 | $354,421 (+2%) Land $124,046 Building $230,375 | |
| 2025 | $3,800.00 Homeowner's exemption | $347,472 Land $121,614 Building $225,858 |
| 2023 | $3,619.00 (+0.3%) Homeowner's exemption | $333,978 Land $116,891 Building $217,087 |
| 2022 | $3,608.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 8531 18th St in Zone X, an area of minimal flood risk, though there have been 3 flood claims nearby since 1988.
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 Claims | 3 (1988–1993) |
| Most Recent Claim | Jan 1993 · Severe Winter Storm, Mud & Land Slides, & Flooding |
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 8531 18th 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 552 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable | 1,000 / 35 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Frontier, GeoLinks.
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