Los Angeles County property record for 20850 Starshine Rd, Diamond Bar, CA 91789
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 1,970 sqft · built 1983 |
| Lot Size | 0.188 acres (8,179 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $798,000 (Jun 2015) |
| Tax Bill | $12,049 (2025) |
| Deeds & Mortgages | Sep 2018 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 8765-003-020 |
| Primary APN | 8765-003-020 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 11 Rooms |
| Stories | 2 Stories |
| Building Area | 1,970 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1983 |
|---|---|
| Effective Year Built | Effective 1983 |
| Architectural Style | Conventional |
| Exterior Material | Stucco |
| Construction Type | Wood |
| Roof Type | Gable |
| Roof Material | Tile |
| Lot Area | 8,179 sqft (0.188 acres) |
| Lot Dimensions | 110 ft deep x 70 ft wide |
| Heating System | Central |
|---|
| Street Address | 20850 STARSHINE RD |
|---|---|
| City | WALNUT |
| State | CA |
| Zip | 91789-4016 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | LCRPD10000 |
| Legal Description | *TR=35742 LOT 42 |
| Legal Subdivision | 35742 |
| Legal Tract | 35742 |
| Legal Block | 3 |
| Legal Lot Number | 42 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | EAST SAN GABRIEL VALLEY |
| Census Block Group | 3 |
| Census Block | 3013 |
| Census Tract | 408707 |
Source: Los Angeles County records, as of August 25, 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 Record |
|---|---|
| Mailing Address | 20850 STARSHINE RD, WALNUT, CA 91789-4016 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jun 18, 2015 · Amount on Record |
| Deed Sale | Jun 18, 2015 · Amount on Record |
| Prior Sale | Oct 24, 1997 · Amount on Record |
| Deed Document Number | 2015722727 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Property Address | 20850 STARSHINE RD, DIAMOND BAR, CA 91789-4016 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | PROVIDENT TITLE COMPANY |
| Name | Verified Name |
|---|
| Document Number | 0000988298 |
|---|---|
| Date | Sep 27, 2018 |
| Instrument | 18-0988298 |
| Name | NMSI INC |
|---|---|
| Type | Mortgage Company |
| Address | LOS ANGELES, CA 90010 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Oct 1, 2048 |
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 | Walnut Valley Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $978,245 (+2%) Land $517,440 Building $460,805 | |
| 2025 | $12,049.00 (+7.2%) | $959,065 (+4.04%) Land $507,295 Building $451,770 |
| 2023 | $11,240.00 (+2.12%) | $921,826 Land $487,598 Building $434,228 |
| 2022 | $11,007.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 96% of the US · lower than 97.4% of California |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond 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 435 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Verizon.
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