Los Angeles County property record for 339 Carpio Dr, Diamond Bar, CA 91765
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,542 sqft · built 1971 |
| Lot Size | 0.238 acres (10,366 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $552,000 (Dec 2016) |
| Tax Bill | $8,738 (2025) |
| Deeds & Mortgages | Aug 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 8281-021-036 |
| Primary APN | 8281-021-036 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 1,542 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1971 |
|---|---|
| Effective Year Built | Effective 1971 |
| Architectural Style | Conventional |
| Exterior Material | Stucco |
| Construction Type | Wood |
| Roof Type | Gable |
| Roof Material | Tile |
| Lot Area | 10,366 sqft (0.238 acres) |
| Lot Dimensions | 135 ft deep x 75 ft wide |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 339 CARPIO DR |
|---|---|
| City | DIAMOND BAR |
| State | CA |
| Zip | 91765-1810 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | LCR11L |
| Legal Description | TRACT NO 29889 LOT 106 |
| Legal Subdivision | 29889 |
| Legal Tract | 29889 |
| Legal Block | 2 |
| Legal Lot Number | 106 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | EAST SAN GABRIEL VALLEY |
| Census Block Group | 2 |
| Census Block | 2007 |
| Census Tract | 403321 |
339 Carpio Dr is owned and occupied by two individuals who bought it in December 2016.
Source: Los Angeles County records, as of August 25, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 339 CARPIO DR, DIAMOND BAR, CA 91765-1810 |
| Occupancy | Owner Occupied |
| 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 | Dec 30, 2016 · Amount on File |
| Deed Sale | Dec 30, 2016 · Amount on File |
| Prior Sale | Aug 8, 1997 · Amount on File |
| Deed Document Number | 20161667874 |
| Prior Transfer Date | Aug 1, 1997 |
| Prior Transfer Doc | 0001223053 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Property Address | 339 CARPIO DR, DIAMOND BAR, CA 91765-1810 |
| Document Number | 0001004075 |
| Instrument Date | Aug 19, 2020 |
| Transaction Type | Mortgage |
| Record Updated | Sep 3, 2020 |
| Title Company | WFG NATIONAL TITLE COMPANY, WFG NAT'L TITLE CO |
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants with Right of Survivorship |
| Address | 339 CARPIO DR DIAMOND BAR CA 917651810, DIAMOND BAR, CA 91765-1810 |
| Document Number | 0001004075 |
|---|---|
| Date | Aug 26, 2020 |
| Instrument | 1004075 |
| Name | JJST CORP |
|---|---|
| Address | CITY OF INDUSTRY, CA 91748 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Aug 25, 2050 |
The 2025 property tax bill for 339 Carpio Dr was $8,738 with a homeowner's exemption.
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 | Pomona Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $653,449 (+2%) Land $522,761 Building $130,688 | |
| 2025 | $8,738.00 Homeowner's exemption | $640,637 Land $512,511 Building $128,126 |
| 2023 | $7,890.00 (+1.57%) Homeowner's exemption | $615,761 Land $492,610 Building $123,151 |
| 2022 | $7,768.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 339 Carpio Dr in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 1998.
Source: FEMA National Flood Hazard Layer, effective September 30, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Claims | 2 (1998–2008) |
| Claims Outside the SFHA | 2 of 2 |
| Most Recent Claim | Jan 2008 · rainfall accumulation |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Wildfire risk around 339 Carpio Dr is low, with a 0.02% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 67% of the US · lower than 81% of California |
|---|---|
| Wildfire Likelihood | 0.02% 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 519 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: Frontier, GeoLinks, T-Mobile.
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