Los Angeles County property record for 1374 Calbourne Dr, Diamond Bar, CA 91789
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,304 sqft · built 1976 |
| Lot Size | 0.183 acres (7,967 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $2,871 (2025) |
| Deeds & Mortgages | Apr 2024 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 8763-023-031 |
| Primary APN | 8763-023-031 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Building Area | 2,304 sqft Living Area |
| Year Built | Built 1976 |
|---|---|
| Effective Year Built | Effective 1976 |
| Construction Type | Wood |
| Lot Area | 7,967 sqft (0.183 acres) |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 1374 CALBOURNE DR |
|---|---|
| City | WALNUT |
| State | CA |
| Zip | 91789-3710 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | LCR110000* |
| Legal Description | TRACT NO 32109 LOT 46 |
| Legal Subdivision | 32109 |
| Legal Tract | 32109 |
| Legal Block | 3 |
| Legal Lot Number | 46 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | EAST SAN GABRIEL VALLEY |
| Census Block Group | 3 |
| Census Block | 3010 |
| Census Tract | 408707 |
1374 Calbourne Dr is owned and occupied by two individuals who acquired it in March 2024.
Source: Los Angeles County records, as of August 25, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 1374 CALBOURNE DR, WALNUT, CA 91789-3710 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Surviving Spouse |
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 Transfer Date | Mar 20, 2024 |
| Transfer Doc | 0000231520 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Recording Date | Apr 9, 2024 |
| Property Address | 1374 CALBOURNE DR, DIAMOND BAR, CA 91789-3710 |
| Document Number | 0000231520 |
| Map Reference | MB 849 PG 21-24 |
| Instrument Date | Apr 8, 2024 |
| Instrument | 24-0231520 |
| Transaction Type | Transfer |
| Record Updated | Apr 22, 2024 |
| Title Company | VYLLA TITLE LLC, VYLLA TITLE INC |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 1374 CALBOURNE DR, WALNUT, CA 91789-3710 |
| Document Number | 0000231521 |
|---|---|
| Date | Apr 9, 2024 |
| Instrument | 24-0231521 |
| Name | CARRINGTON MORTGAGE SERVICES LLC |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Apr 1, 2054 |
The 2025 property tax bill for 1374 Calbourne Dr was $2,871.
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 | $176,605 (+2%) Land $38,901 Building $137,704 | |
| 2025 | $2,871.00 Homeowner's exemption | $173,143 Land $38,139 Building $135,004 |
| 2023 | $2,562.00 (+2.19%) Homeowner's exemption | $166,421 Land $36,659 Building $129,762 |
| 2022 | $2,507.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 1374 Calbourne 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.
The area around 1374 Calbourne Dr 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 496 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: GeoLinks, Verizon.
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