Los Angeles County property record for 442 Rockbridge Rd, Diamond Bar, CA 91765
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,260 sqft · built 1975 |
| Lot Size | 0.177 acres (7,696 sqft) |
| Owner | Individual Name on File |
| Last Sale | $260,500 (Oct 2001) |
| Tax Bill | $5,492 (2025) |
| Deeds & Mortgages | Feb 2021 Mortgage Feb 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 8718-019-017 |
| Primary APN | 8718-019-017 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 1,260 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1975 |
|---|---|
| Effective Year Built | Effective 1975 |
| Architectural Style | Conventional |
| Exterior Material | Stucco |
| Construction Type | Wood |
| Roof Type | Gable |
| Roof Material | Wood Shingle |
| Lot Area | 7,696 sqft (0.177 acres) |
| Lot Dimensions | 100 ft deep x 79 ft wide |
| Garage Type | Attached |
| Heating System | Central |
|---|---|
| Water Source | Commercial |
| Street Address | 442 ROCKBRIDGE RD |
|---|---|
| City | DIAMOND BAR |
| State | CA |
| Zip | 91765-1246 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | LCR18000* |
| Legal Description | TRACT NO 28065 LOT 49 |
| Legal Subdivision | 28065 |
| Legal Tract | 28065 |
| Legal Block | 1 |
| Legal Lot Number | 49 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | EAST SAN GABRIEL VALLEY |
| Census Block Group | 1 |
| Census Block | 1021 |
| Census Tract | 403327 |
442 Rockbridge Rd is owned and occupied by an individual who acquired it in February 2020.
Source: Los Angeles County records, as of August 25, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 442 ROCKBRIDGE RD, DIAMOND BAR, CA 91765-1246 |
| 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 23, 2021 | Deed of Trust, Mortgage · Conventional Mortgage MONARCH FUNDING CORP |
| Feb 13, 2020 | Intrafamily Transfer, Transfer · Conventional Mortgage MONARCH FUNDING CORP |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Oct 4, 2001 · Amount on File |
| Deed Sale | Oct 4, 2001 · Amount on File |
| Prior Sale | Jul 28, 1995 · Amount on File |
| Deed Document Number | 20011884552 |
| Last Transfer Date | Feb 4, 2020 |
| Transfer Doc | 0000178835 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Property Address | 442 ROCKBRIDGE RD, DIAMOND BAR, CA 91765-1246 |
| Transaction Type | Mortgage |
| Record Updated | Mar 3, 2021 |
| Title Company | LAWYERS TITLE |
| Name | Verified Name |
|---|---|
| Address | 442 ROCKBRIDGE RD, DIAMOND BAR, CA 91765-1246 |
| Document Number | 0000298554 |
|---|---|
| Date | Feb 23, 2021 |
| Instrument | 21-0298554 |
| Name | MONARCH FUNDING CORP |
|---|---|
| Type | Mortgage Company |
| Address | ANAHEIM, CA 92807 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Mar 1, 2051 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Recording Date | Feb 13, 2020 |
| Property Address | 442 ROCKBRIDGE RD, DIAMOND BAR, CA 91765-1246 |
| Document Number | 0000178835 |
| Map Reference | MB 839 PG 35&36 |
| Instrument Date | Feb 4, 2020 |
| Instrument | 20-0178835 |
| Transaction Type | Transfer |
| Record Updated | Sep 22, 2021 |
| Title Company | FIDELITY NATIONAL TITLE |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 442 ROCKBRIDGE RD, DIAMOND BAR, CA 91765-1246 |
| Document Number | 0000178836 |
|---|---|
| Date | Feb 13, 2020 |
| Instrument | 20-0178836 |
| Name | MONARCH FUNDING CORP |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Mar 1, 2050 |
The 2025 property tax bill for 442 Rockbridge Rd was $5,492 with a homeowner's exemption.
Source: Los Angeles County assessment roll, as of August 25, 2026
| Type | Name |
|---|---|
| State | California |
| County | Los Angeles County |
| Municipality | Diamond Bar City |
| Unified School District | Pomona Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $392,509 (+2%) Land $246,205 Building $146,304 | |
| 2025 | $5,492.00 Homeowner's exemption | $384,814 Land $241,378 Building $143,436 |
| 2023 | $4,958.00 (+1.62%) Homeowner's exemption | $369,873 Land $232,006 Building $137,867 |
| 2022 | $4,879.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 442 Rockbridge Rd in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective September 30, 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.
The area around 442 Rockbridge 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 | WALNUT VALLEY WATER DISTRICT serves 100,941 people · EPA ID CA1910234 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Jun 2023 |
| 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 216 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Frontier Fiber | 7,000 / 7,000 |
| Spectrum Cable | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: GeoLinks.
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