Los Angeles County property record for 1130 Summitridge Dr, Diamond Bar, CA 91765
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 3,203 sqft · built 1987 |
| Lot Size | 0.139 acres (6,071 sqft) |
| Owner | 2 Company Names on File |
| Last Sale | $1,515,000 (Aug 2023) |
| Tax Bill | $19,643 (2025) |
| Deeds & Mortgages | Aug 2023 Transfer Aug 2023 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 8701-038-076 |
| Primary APN | 8701-038-076 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 3,203 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1987 |
|---|---|
| Effective Year Built | Effective 1987 |
| Architectural Style | Conventional |
| Exterior Material | Stucco |
| Construction Type | Wood |
| Roof Material | Tile |
| Lot Area | 6,071 sqft (0.139 acres) |
| Garage Type | Attached |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 1130 SUMMITRIDGE DR |
|---|---|
| City | DIAMOND BAR |
| State | CA |
| Zip | 91765-4362 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | LCRPD20000 |
| Legal Description | TR=42570 LOT 17 |
| Legal Subdivision | 42570 |
| Legal Tract | 42570 |
| Legal Block | 2 |
| Legal Lot Number | 17 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | EAST SAN GABRIEL VALLEY |
| Census Block Group | 2 |
| Census Block | 2009 |
| Census Tract | 403320 |
1130 Summitridge Dr is owned by a company that bought it in August 2023.
Source: Los Angeles County records, as of August 25, 2026
| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 1130 SUMMITRIDGE DR, DIAMOND BAR, CA 91765-4362 |
| Owner Type | Company |
| Vesting | Life Tenant |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Aug 21, 2023 | Affidavit of Death of Trustee, Transfer CHICAGO TITLE COMPANY |
| Aug 21, 2023 | Grant Deed, Transfer · Conventional Mortgage STAR ONE CU |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Aug 21, 2023 · Amount on File |
| Deed Sale | Aug 21, 2023 · Amount on File |
| Deed Document Number | 2023554189 |
| Prior Transfer Date | Aug 14, 2023 |
| Prior Transfer Doc | 0000554188 |
| Record Updated | Oct 29, 2026 |
| Document Type | Affidavit of Death of Trustee |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Recording Date | Aug 21, 2023 |
| Property Address | 1130 SUMMITRIDGE DR, DIAMOND BAR, CA 91765-4362 |
| Document Number | 0000554188 |
| Map Reference | MB 1063 PG 61-71 |
| Instrument Date | Aug 1, 2023 |
| Instrument | 23-0554188 |
| Transaction Type | Transfer |
| Record Updated | Aug 29, 2023 |
| Title Company | CHICAGO TITLE COMPANY |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Living Trust |
| Address | 10429 ANTELOPE RUN, AUSTIN, TX 78748-3013 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Recording Date | Aug 21, 2023 |
| Property Address | 1130 SUMMITRIDGE DR, DIAMOND BAR, CA 91765-4362 |
| Document Number | 0000554189 |
| Map Reference | MB 1063 PG 61-71 |
| Instrument Date | Jul 25, 2023 |
| Instrument | 23-0554189 |
| Transaction Type | Transfer |
| Record Updated | Aug 29, 2023 |
| Title Company | CHICAGO TITLE COMPANY |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | 1130 SUMMITRIDGE DR, DIAMOND BAR, CA 91765-4362 |
| Document Number | 0000554190 |
|---|---|
| Date | Aug 21, 2023 |
| Instrument | 23-0554190 |
| Name | STAR ONE CU |
|---|---|
| Type | Credit Union |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Sep 1, 2053 |
The 2025 property tax bill for 1130 Summitridge Dr was $19,643.
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 | $1,576,205 (+2%) Land $742,221 Building $833,984 | |
| 2025 | $19,643.00 | $1,545,300 Land $727,668 Building $817,632 |
| 2023 | $7,177.00 (+2.34%) Homeowner's exemption | $522,470 Land $209,717 Building $312,753 |
| 2022 | $7,013.00 |
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.
FEMA maps place 1130 Summitridge Dr in Zone X, an area of minimal flood risk.
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 Policies | 1 in force |
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 1130 Summitridge Dr is moderate, ranking above 46% of the US, with a 0.09% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 46% of the US · lower than 72% of California |
|---|---|
| Wildfire Likelihood | 0.09% annual chance |
| Exposure | Indirect 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 529 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
Search by:
By searching, you agree to: Terms • Privacy • Disclosures