Los Angeles County property record for 20601 E Alda Ct, Diamond Bar, CA 91789 · Last verified June 2026
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 4 ba · 3,078 sqft · built 1981 |
| Lot Size | 0.165 acres (7,182 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $383,000 (Dec 1999) |
| Tax Bill | $7,816 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 8763-017-044 |
| Primary APN | 8763-017-044 |
|---|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 4 Baths |
| Total Rooms | 12 Rooms |
| Stories | 2 Stories |
| Building Area | 3,078 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1981 |
|---|---|
| Effective Year Built | Effective 1982 |
| Architectural Style | Conventional |
| Exterior Material | Stucco |
| Construction Type | Wood |
| Roof Type | Gable |
| Roof Material | Wood Shingle |
| Lot Area | 7,182 sqft (0.165 acres) |
| Lot Dimensions | 95 ft deep x 74 ft wide |
| Pool Type | Spa / Hot Tub (No Pool) |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 20601 E ALDA CT |
|---|---|
| City | WALNUT |
| State | CA |
| Zip | 91789-3840 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | *TR=33645 LOT 38 |
| Legal Subdivision | 33645 |
| Legal Tract | 33645 |
| Legal Block | 3 |
| Legal Lot Number | 38 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | EAST SAN GABRIEL VALLEY |
| Census Block Group | 3 |
| Census Block | 3006 |
| Census Tract | 408707 |
Source: Los Angeles County records · APN 8763-017-044
Assessment roll updated May 21, 2026 · Last verified June 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 | 20601 E ALDA CT, WALNUT, CA 91789-3840 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Dec 15, 1999 · Amount on Record |
| Deed Sale | Dec 15, 1999 · Amount on Record |
| Deed Document Number | 19992302266 |
| Prior Transfer Date | Jun 22, 1998 |
| Prior Transfer Doc | 0001370390 |
| Record Updated | Sep 20, 2026 |
Source: Los Angeles County records · Assessment roll updated May 21, 2026 · Last verified June 2026
| Type | Name |
|---|---|
| State | California |
| County | Los Angeles County |
| Municipality | Diamond Bar City |
| Unified School District | Walnut Valley Unified School District (KG - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $7,816.00 (+9.36%) Homeowner's exemption | $588,638 (+4.04%) Land $251,591 Building $337,047 |
| 2023 | $7,147.00 (+2.14%) Homeowner's exemption | $565,782 Land $241,822 Building $323,960 |
| 2022 | $6,997.00 |
Source: FEMA National Flood Hazard Layer, Los Angeles County (06037C), updated September 30, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
Values are read at the parcel center point; lenders make the official flood determination.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 496 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Frontier | Fiber | 7,000 / 7,000 |
| Spectrum | Cable | 1,000 / 1,000 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
| Starlink | Satellite (low-earth orbit) | 280 / 30 |
May also be available at this address: Verizon, California Internet. Availability varies by address; speeds are provider-advertised maximums, not measured.
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