Los Angeles County property record for 1311 Sims Pl, Diamond Bar, CA 91765
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,596 sqft · built 1980 |
| Lot Size | 0.253 acres (11,011 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $1,440,000 (Nov 2024) |
| Tax Bill | $17,917 (2025) |
| Deeds & Mortgages | Feb 2021 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 8701-031-010 |
| Primary APN | 8701-031-010 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 10 Rooms |
| Stories | 2 Stories |
| Building Area | 2,596 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1980 |
|---|---|
| Effective Year Built | Effective 1980 |
| Architectural Style | Conventional |
| Exterior Material | Stucco |
| Construction Type | Wood |
| Roof Type | Gable |
| Roof Material | Wood Shingle |
| Lot Area | 11,011 sqft (0.253 acres) |
| Lot Dimensions | 123 ft deep x 89 ft wide |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 1311 SIMS PL |
|---|---|
| City | DIAMOND BAR |
| State | CA |
| Zip | 91765-2373 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | LCR18000* |
| Legal Description | *TR=35026 LOT 77 |
| Legal Subdivision | 35026 |
| Legal Tract | 35026 |
| Legal Block | 1 |
| Legal Lot Number | 77 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | EAST SAN GABRIEL VALLEY |
| Census Block Group | 1 |
| Census Block | 1006 |
| Census Tract | 403320 |
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 Individual Names on Record |
|---|---|
| Mailing Address | 1317 ALBARIZA PL, 4, DIAMOND BAR, CA 91765-5423 |
| Owner Type | Individual |
| Vesting | Community Property |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Nov 4, 2024 · Amount on Record |
| Deed Sale | Nov 4, 2024 · Amount on Record |
| Deed Document Number | 2024754203 |
| Record Updated | Oct 29, 2026 |
| Document Type | Affidavit of Death of Trustee |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Recording Date | Feb 23, 2021 |
| Property Address | 1311 SIMS PL, DIAMOND BAR, CA 91765-2373 |
| Document Number | 0000302285 |
| Map Reference | MB 919 PG 31-37 |
| Instrument Date | Dec 4, 2020 |
| Instrument | 21-0302285 |
| Transaction Type | Transfer |
| Record Updated | Jun 7, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 1311 SIMS PL, DIAMOND BAR, CA 91765-2373 |
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 | $1,468,800 (+2%) Land $1,252,764 Building $216,036 | |
| 2025 | $17,917.00 (+328.53%) | $1,440,000 (+395.01%) Land $1,228,200 Building $211,800 |
| 2024 | $4,181.00 (+2.22%) | |
| 2023 | $4,090.00 (+2.12%) Homeowner's exemption | $290,905 Land $86,821 Building $204,084 |
| 2022 | $4,005.00 |
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 | Moderate above 63% of the US · lower than 61% of California |
|---|---|
| Wildfire Likelihood | 0.1% annual chance |
| Exposure | Direct burnable vegetation |
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 344 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable | 1,000 / 1,000 |
May also be available: AT&T, GeoLinks, T-Mobile, Verizon.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures