Los Angeles County property record for 21065 Glenbrook Dr, Diamond Bar, CA 91789
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,468 sqft · built 1979 |
| Lot Size | 0.163 acres (7,085 sqft) |
| Owner | 2 Company Names on Record |
| Tax Bill | $3,601 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 8763-009-010 |
| Primary APN | 8763-009-010 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Building Area | 1,468 sqft Living Area |
| Year Built | Built 1979 |
|---|---|
| Effective Year Built | Effective 1979 |
| Construction Type | Wood |
| Lot Area | 7,085 sqft (0.163 acres) |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 21065 GLENBROOK DR |
|---|---|
| City | WALNUT |
| State | CA |
| Zip | 91789-3812 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | LCC2* |
| Legal Description | *TR=33257 LOT 106 |
| Legal Subdivision | 33257 |
| Legal Tract | 33257 |
| Legal Block | 3 |
| Legal Lot Number | 106 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | EAST SAN GABRIEL VALLEY |
| Census Block Group | 3 |
| Census Block | 3002 |
| 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 Company Names on Record |
|---|---|
| Mailing Address | 21065 GLENBROOK DR, WALNUT, CA 91789-3812 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Personal Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Transfer Date | Nov 23, 2013 |
| Transfer Doc | 0001749197 |
| Record Updated | Oct 29, 2026 |
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 | $253,262 (+2%) Land $90,963 Building $162,299 | |
| 2025 | $3,601.00 (+8.73%) Homeowner's exemption | $248,297 (+4.04%) Land $89,180 Building $159,117 |
| 2023 | $3,312.00 (+2.19%) Homeowner's exemption | $238,658 Land $85,718 Building $152,940 |
| 2022 | $3,241.00 |
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 | 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 286 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Frontier Fiber | 7,000 / 7,000 |
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| Starlink Satellite | 280 / 30 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: GeoLinks, Verizon.
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