San Bernardino County property record for 4635 S Flagstone Ave, Ontario, CA 91762
| Property Type | Planned Unit Development |
|---|---|
| Details | 4 bd · 2.5 ba · 3,410 sqft · built 2019 |
| Lot Size | 0.127 acres (5,517 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $643,000 (Mar 2020) |
| Tax Bill | $12,889 (2025) |
| Deeds & Mortgages | Mar 2020 Mortgage Mar 2020 Mortgage + 4 more |
| Flood Zone | Zone X (reduced by levee) |
| APN | 1073-091-33-0000 |
| Primary APN | 1073-091-33-0000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 3,410 sqft Living Area |
| Gross Area | 4,107 sqft |
| 1st Floor Area | 1,609 sqft |
| 2nd Floor Area | 1,801 sqft |
| Family Room | Family Room |
| Year Built | Built 2019 |
|---|---|
| Effective Year Built | Effective 2019 |
| Architectural Style | Modern |
| Construction Type | Frame |
| Roof Material | Tile |
| Lot Area | 5,517 sqft (0.127 acres) |
| Garage Type | Attached |
| Garage Area | 697 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Patio/Porch |
| Porch Area | 23 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Old Parcel Number | 0218202330000 |
|---|---|
| Street Address | 4635 S FLAGSTONE AVE |
| City | ONTARIO |
| State | CA |
| Zip | 91762-7332 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Planned Unit Development |
| Legal Description | TRACT 18066 LOT 33 BOOK 351 PAGE 61 AND INTEREST IN COMMON AREA PER TRACT 18066 |
| Legal Subdivision | TRACT NO 18066 |
| Legal Tract | 18066 |
| Legal Block | 1 |
| Legal Lot Number | 33 |
| Jurisdiction | SAN BERNARDINO CA |
| Township / Civil Division | ONTARIO |
| Census Block Group | 1 |
| Census Block | 1027 |
| Census Tract | 1908 |
Source: San Bernardino County records · APN 1073-091-33-0000
Assessment roll updated July 14, 2026 · Last verified July 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 4635 S FLAGSTONE AVE, ONTARIO, CA 91762-7332 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Date | Document |
|---|---|
| Mar 02, 2020 | Deed of Trust, Mortgage MERCHANTS BANK OF INDIANA |
| Mar 02, 2020 | Deed of Trust, Mortgage MERCHANTS BANK OF INDIANA |
| Jan 12, 2021 | Deed of Trust, Mortgage · Conventional Mortgage OWNING CORPORATION |
| Mar 13, 2020 | Quit Claim Deed, Transfer FIRST AMERICAN TITLE |
| Mar 13, 2020 | Grant Deed, Transfer · Conventional Mortgage OWNING CORPORATION |
| Feb 26, 2020 | Grant Deed, Transfer FIRST AMERICAN TITLE HSD, FIRST AMERICAN TITLE CO-HSD |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Mar 13, 2020 · Amount on Record |
| Deed Sale | Mar 13, 2020 · Amount on Record |
| Prior Sale | Feb 26, 2020 · Amount on Record |
| Deed Document Number | 202091555 |
| Prior Transfer Date | Mar 09, 2020 |
| Prior Transfer Doc | 0000091554 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN BERNARDINO CA |
| Property Address | 4635 S FLAGSTONE AVE, ONTARIO, CA 91762-7332 |
| Transaction Type | Mortgage |
| Record Updated | Sep 20, 2022 |
| Title Company | ORANGE COAST TITLE |
| Name | Verified Name |
|---|
| Document Number | 0000074876 |
|---|---|
| Date | Mar 02, 2020 |
| Instrument | 2020-0074876 |
| Name | MERCHANTS BANK OF INDIANA |
|---|---|
| Type | Bank |
| Address | CARMEL, IN 46032 |
| Amount | Amount Recorded |
|---|
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN BERNARDINO CA |
| Property Address | 4635 S FLAGSTONE AVE, ONTARIO, CA 91762-7332 |
| Transaction Type | Mortgage |
| Record Updated | Sep 20, 2022 |
| Title Company | ORANGE COAST TITLE |
| Name | Verified Name |
|---|
| Document Number | 0000074908 |
|---|---|
| Date | Mar 02, 2020 |
| Instrument | 2020-0074908 |
| Name | MERCHANTS BANK OF INDIANA |
|---|---|
| Type | Bank |
| Address | CARMEL, IN 46032 |
| Amount | Amount Recorded |
|---|
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN BERNARDINO CA |
| Property Address | 4635 S FLAGSTONE AVE, ONTARIO, CA 91762-7332 |
| Transaction Type | Mortgage |
| Record Updated | Sep 20, 2022 |
| Title Company | ORANGE COAST TITLE COMPANY |
| Name | Verified Name |
|---|---|
| Address | 4635 S FLAGSTONE AVE, ONTARIO, CA 91762-7332 |
| Document Number | 0000016060 |
|---|---|
| Date | Jan 12, 2021 |
| Instrument | 2021-0016060 |
| Name | OWNING CORPORATION |
|---|---|
| Type | Non-Lending Institution |
| Address | ORANGE, CA 92868 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Feb 01, 2051 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SAN BERNARDINO CA |
| Recording Date | Mar 13, 2020 |
| Property Address | 4635 S FLAGSTONE AVE, ONTARIO, CA 91762-7332 |
| Document Number | 0000091554 |
| Instrument Date | Mar 09, 2020 |
| Instrument | 91554 |
| Transaction Type | Transfer |
| Record Updated | Apr 17, 2020 |
| Title Company | FIRST AMERICAN TITLE |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Separate Estate/Property |
| Address | 4635 S FLAGSTONE AVE ONTARIO CA 917627332, ONTARIO, CA 91762-7332 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SAN BERNARDINO CA |
| Recording Date | Mar 13, 2020 |
| Property Address | 4635 S FLAGSTONE AVE, ONTARIO, CA 91762-7332 |
| Document Number | 0000091555 |
| Map Reference | MB 351 PG 61-64 |
| Instrument Date | Mar 05, 2020 |
| Instrument | 2020-0091555 |
| Transaction Type | Transfer |
| Record Updated | Sep 20, 2022 |
| Title Company | FIRST AMERICAN TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 4635 S FLAGSTONE AVE, ONTARIO, CA 91762-7332 |
| Document Number | 0000091556 |
|---|---|
| Date | Mar 13, 2020 |
| Instrument | 2020-0091556 |
| Name | OWNING CORPORATION |
|---|---|
| Type | Non-Lending Institution |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Apr 01, 2050 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SAN BERNARDINO CA |
| Recording Date | Feb 26, 2020 |
| Property Address | 4635 S FLAGSTONE AVE, ONTARIO, CA 91762-7332 |
| Document Number | 0000068643 |
| Instrument Date | Feb 24, 2020 |
| Instrument | 68643 |
| Transaction Type | Transfer |
| Record Updated | Mar 11, 2020 |
| Title Company | FIRST AMERICAN TITLE HSD, FIRST AMERICAN TITLE CO-HSD |
| Amount | Amount Recorded |
|---|---|
| Tax | $722.00 |
| Amount Accuracy | Full Value |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 1 CITY BLVD W #1700 ORANGE CA 928683621, 1700, ORANGE, CA 92868-3621 |
Source: San Bernardino County records · Assessment roll updated July 14, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | San Bernardino County |
| Municipality | Ontario City |
| Secondary School District | Chaffey Joint Union High School District (09 - 12) |
| Elementary School District | Mountain View Elementary School District (KG - 08) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $717,267 (+2%) Land $250,992 Building $466,275 | |
| 2025 | $12,889.00 (+4.74%) Homeowner's exemption | $703,203 (+4.04%) Land $246,071 Building $457,132 |
| 2023 | $12,306.00 (+0.83%) Homeowner's exemption | $675,897 Land $236,516 Building $439,381 |
| 2022 | $12,205.00 |
Source: FEMA National Flood Hazard Layer as of October 12, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X reduced by levee · depends on levee performance |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 13 policies |
| Nearby Flood Policies | 13 in force |
| Wildfire Risk | Low lower than 65% of the US · lower than 79% of California |
|---|---|
| Wildfire Likelihood | 0.04% annual chance |
| Exposure | None beyond ember reach |
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.
Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Frontier Fiber | 7,000 / 7,000 |
| Spectrum Cable | 1,000 / 1,000 |
| Inyo Networks Fiber | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
Based on FCC filings for 409 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | ONTARIO MUNICIPAL UTILITIES COMPANY serves 185,010 people |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Jul 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures