Los Angeles County property record for 312 N Prospectors Rd, Diamond Bar, CA 91765
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,553 sqft · built 1975 |
| Lot Size | 0.199 acres (8,670 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $900,000 (May 2026) |
| Tax Bill | $2,139 (2025) |
| Deeds & Mortgages | May 2026 Sale May 2026 Sale & Mortgage + 2 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 8718-017-037 |
| Primary APN | 8718-017-037 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 1,553 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1975 |
|---|---|
| Effective Year Built | Effective 1975 |
| Architectural Style | Conventional |
| Exterior Material | Stucco |
| Construction Type | Wood |
| Roof Type | Gable |
| Roof Material | Wood Shingle |
| Lot Area | 8,670 sqft (0.199 acres) |
| Lot Dimensions | 119 ft deep x 74 ft wide |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 312 N PROSPECTORS RD |
|---|---|
| City | DIAMOND BAR |
| State | CA |
| Zip | 91765-1550 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | LCR18000* |
| Legal Description | TRACT NO 28105 LOT 19 |
| Legal Subdivision | 28105 |
| Legal Tract | 28105 |
| Legal Block | 2 |
| Legal Lot Number | 19 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | EAST SAN GABRIEL VALLEY |
| Census Block Group | 2 |
| Census Block | 2005 |
| Census Tract | 403327 |
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 | Individual Name on Record |
|---|---|
| Mailing Address | 312 N PROSPECTORS RD, DIAMOND BAR, CA 91765-1550 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Sole Owner |
| Date | Document |
|---|---|
| May 26, 2026 | Grant Deed, Transfer WFT NATIONAL TITLE, WFG NATIONAL TITLE |
| May 26, 2026 | Grant Deed, Transfer · Conventional Mortgage OASIS MORTGAGE LENDING |
| Dec 6, 2023 | Intrafamily Transfer, Transfer |
| Dec 6, 2023 | Affidavit of Death of Trustee, Transfer |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | May 26, 2026 · Amount on Record |
| Deed Sale | May 26, 2026 · Amount on Record |
| Deed Document Number | 2026381343 |
| Prior Transfer Date | Dec 6, 2023 |
| Prior Transfer Doc | 0000849257 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Recording Date | May 26, 2026 |
| Property Address | 312 N PROSPECTORS RD, DIAMOND BAR, CA 91765-1550 |
| Document Number | 0000381344 |
| Instrument Date | May 10, 2026 |
| Instrument | 2026381344 |
| Transaction Type | Transfer |
| Record Updated | Jul 12, 2026 |
| Title Company | WFT NATIONAL TITLE, WFG NATIONAL TITLE |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Sole Owner |
| Address | 312 N PROSPECTORS RD, DIAMOND BAR, CA 91765-1550 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Recording Date | May 26, 2026 |
| Property Address | 312 N PROSPECTORS RD, DIAMOND BAR, CA 91765-1550 |
| Document Number | 0000381343 |
| Instrument Date | May 7, 2026 |
| Instrument | 2026381343 |
| Transaction Type | Transfer |
| Record Updated | Jun 2, 2026 |
| Title Company | WFT NATIONAL TITLE, WFG NATIONAL TITLE |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $99,990.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Sole Owner |
| Address | 312 N PROSPECTORS RD, DIAMOND BAR, CA 91765-1550 |
| Document Number | 0000381345, |
|---|---|
| Date | May 26, 2026 |
| Instrument | 2026381345 |
| Name | OASIS MORTGAGE LENDING |
|---|
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Jun 1, 2056 |
| Rate Type | Fixed Rate |
|---|---|
| Rate | 6.37% |
| Initial Type | Fixed Rate |
| Max Rate | -1% |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Recording Date | Dec 6, 2023 |
| Property Address | 312 N PROSPECTORS RD, DIAMOND BAR, CA 91765-1550 |
| Document Number | 0000849257 |
| Map Reference | MB 838 PG 98-100 |
| Instrument Date | Dec 6, 2023 |
| Instrument | 23-0849257 |
| Transaction Type | Transfer |
| Record Updated | Dec 26, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 312 N PROSPECTORS RD, DIAMOND BAR, CA 91765-1550 |
| Document Type | Affidavit of Death of Trustee |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Recording Date | Dec 6, 2023 |
| Property Address | 312 N PROSPECTORS RD, DIAMOND BAR, CA 91765-1550 |
| Document Number | 0000849256 |
| Map Reference | MB 838 PG 98-100 |
| Instrument Date | Dec 6, 2023 |
| Instrument | 23-0849256 |
| Transaction Type | Transfer |
| Record Updated | Dec 26, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 312 N PROSPECTORS RD, DIAMOND BAR, CA 91765-1550 |
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 | $111,230 (+2%) Land $30,115 Building $81,115 | |
| 2025 | $2,139.00 (+14.81%) Homeowner's exemption | $109,050 (+4.04%) Land $29,525 Building $79,525 |
| 2023 | $1,863.00 (+1.8%) Homeowner's exemption | $104,818 Land $28,380 Building $76,438 |
| 2022 | $1,830.00 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
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 355 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 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
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