Los Angeles County property record for 21035 Riego Dr, Diamond Bar, CA 91765
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 1,949 sqft · built 1980 |
| Lot Size | 0.157 acres (6,817 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $670,000 (Jul 2015) |
| Tax Bill | $10,109 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 8765-012-007 |
| Primary APN | 8765-012-007 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 1,949 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1980 |
|---|---|
| Effective Year Built | Effective 1980 |
| Architectural Style | Contemporary |
| Exterior Material | Stucco |
| Construction Type | Wood |
| Roof Material | Wood Shingle |
| Lot Area | 6,817 sqft (0.157 acres) |
| Garage Type | Attached |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 21035 RIEGO DR |
|---|---|
| City | DIAMOND BAR |
| State | CA |
| Zip | 91765-3465 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | LCCPD-RPD1 |
| Legal Description | *TR=33104 LOT 43 |
| Legal Subdivision | 33104 |
| Legal Tract | 33104 |
| Legal Block | 1 |
| Legal Lot Number | 43 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | EAST SAN GABRIEL VALLEY |
| Census Block Group | 1 |
| Census Block | 1010 |
| Census Tract | 403305 |
21035 Riego Dr is owned by two individuals who acquired it in July 2016.
Source: Los Angeles County records, as of August 25, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 4561 MIMOSA DR, YORBA LINDA, CA 92886-2016 |
| Owner Type | Individual |
| Vesting | Joint Tenants |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jul 2, 2015 · Amount on File |
| Deed Sale | Jul 2, 2015 · Amount on File |
| Prior Sale | Jun 26, 1997 · Amount on File |
| Deed Document Number | 2015800072 |
| Last Transfer Date | Jul 12, 2016 |
| Transfer Doc | 0000921512 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 21035 Riego Dr was $10,109.
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 | $808,999 (+2%) Land $441,931 Building $367,068 | |
| 2025 | $10,109.00 | $793,137 Land $433,266 Building $359,871 |
| 2023 | $9,416.00 (+2.13%) | $762,341 Land $416,443 Building $345,898 |
| 2022 | $9,220.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 21035 Riego Dr 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.
Wildfire risk around 21035 Riego Dr is low, with a 0.06% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 62% of the US · lower than 77% of California |
|---|---|
| Wildfire Likelihood | 0.06% annual chance |
| Exposure | Direct burnable vegetation |
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 257 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 / 50 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
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