Los Angeles County property record for 1149 Summitridge Dr, Diamond Bar, CA 91765
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 3,203 sqft · built 1987 |
| Lot Size | 0.531 acres (23,111 sqft) |
| Owner | Individual Name on File |
| Last Sale | $1,245,000 (May 2021) |
| Tax Bill | $17,566 (2025) |
| Deeds & Mortgages | May 2021 Transfer May 2021 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 8701-038-005 |
| Primary APN | 8701-038-005 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Building Area | 3,203 sqft Living Area |
| Year Built | Built 1987 |
|---|---|
| Effective Year Built | Effective 1987 |
| Construction Type | Wood |
| Lot Area | 23,111 sqft (0.531 acres) |
| Lot Dimensions | 492 ft deep x 75 ft wide |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 1149 SUMMITRIDGE DR |
|---|---|
| City | DIAMOND BAR |
| State | CA |
| Zip | 91765-4363 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | LCRPD20000 |
| Legal Description | TR=42570 LOT 5 |
| Legal Subdivision | 42570 |
| Legal Tract | 42570 |
| Legal Block | 1 |
| Legal Lot Number | 5 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | EAST SAN GABRIEL VALLEY |
| Census Block Group | 1 |
| Census Block | 1006 |
| Census Tract | 403320 |
1149 Summitridge Dr is owned and occupied by an individual who bought it in May 2021.
Source: Los Angeles County records, as of August 25, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 1149 SUMMITRIDGE DR, DIAMOND BAR, CA 91765-4363 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Sole Owner |
| Date | Document |
|---|---|
| May 13, 2021 | Intrafamily Transfer, Transfer OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY |
| May 13, 2021 | Grant Deed, Transfer · Conventional Mortgage GREENBOX LOANS INC |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | May 13, 2021 · Amount on File |
| Deed Sale | May 13, 2021 · Amount on File |
| Prior Sale | Nov 8, 2011 · Amount on File |
| Deed Document Number | 2021767708 |
| Prior Transfer Date | May 8, 2021 |
| Prior Transfer Doc | 0000767707 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Recording Date | May 13, 2021 |
| Property Address | 1149 SUMMITRIDGE DR, DIAMOND BAR, CA 91765-4363 |
| Document Number | 0000767707 |
| Map Reference | MB 1063 PG 61-71 |
| Instrument Date | May 8, 2021 |
| Instrument | 21-0767707 |
| Transaction Type | Transfer |
| Record Updated | May 20, 2021 |
| Title Company | OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 1149 SUMMITRIDGE DR, DIAMOND BAR, CA 91765-4363 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Recording Date | May 13, 2021 |
| Property Address | 1149 SUMMITRIDGE DR, DIAMOND BAR, CA 91765-4363 |
| Document Number | 0000767708 |
| Map Reference | MB 1063 PG 61-71 |
| Instrument Date | May 6, 2021 |
| Instrument | 21-0767708 |
| Transaction Type | Transfer |
| Record Updated | May 20, 2021 |
| Title Company | OLD REPUBLIC TITLE, OLD REPUBLIC 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 |
|---|---|
| Address | 1149 SUMMITRIDGE DR, DIAMOND BAR, CA 91765-4363 |
| Document Number | 0000767709 |
|---|---|
| Date | May 13, 2021 |
| Instrument | 21-0767709 |
| Name | GREENBOX LOANS INC |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Jun 1, 2051 |
The 2025 property tax bill for 1149 Summitridge Dr was $17,566.
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 | $1,374,578 (+2%) Land $772,855 Building $601,723 | |
| 2025 | $17,566.00 | $1,347,626 Land $757,701 Building $589,925 |
| 2023 | $16,276.00 (+2.51%) | $1,295,298 Land $728,280 Building $567,018 |
| 2022 | $15,878.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 1149 Summitridge 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.
Wildfire risk around 1149 Summitridge Dr is moderate, ranking above 58% of the US, with a 0.2% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 58% of the US · lower than 65% of California |
|---|---|
| Wildfire Likelihood | 0.2% 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 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 |
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