Los Angeles County property record for 1030 Summitridge Dr, Diamond Bar, CA 91765
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 3,225 sqft · built 1987 |
| Lot Size | 0.159 acres (6,916 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $1,250,000 (Dec 2020) |
| Tax Bill | $17,431 (2025) |
| Deeds & Mortgages | Jul 2023 Transfer Jul 2023 Transfer + 2 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 8701-042-001 |
| Primary APN | 8701-042-001 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Building Area | 3,225 sqft Living Area |
| Year Built | Built 1987 |
|---|---|
| Effective Year Built | Effective 1987 |
| Construction Type | Wood |
| Lot Area | 6,916 sqft (0.159 acres) |
| Lot Dimensions | 103 ft deep x 67 ft wide |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 1030 SUMMITRIDGE DR |
|---|---|
| City | DIAMOND BAR |
| State | CA |
| Zip | 91765-4364 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | LCRPD20000 |
| Legal Description | TR=42571 LOT 7 |
| Legal Subdivision | 42571 |
| Legal Tract | 42571 |
| Legal Block | 2 |
| Legal Lot Number | 7 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | EAST SAN GABRIEL VALLEY |
| Census Block Group | 2 |
| Census Block | 2010 |
| Census Tract | 403320 |
1030 Summitridge Dr is held in a trust since May 2023.
Source: Los Angeles County records, as of August 25, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 3206 MONTELLANO AVE, HACIENDA HEIGHTS, CA 91745-6149 |
| Owner Type | Company |
| Vesting | Trust, Family Trust |
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 |
|---|---|
| Jul 10, 2023 | Intrafamily Transfer, Transfer |
| Jul 10, 2023 | Intrafamily Transfer, Transfer |
| Apr 5, 2022 | Intrafamily Transfer, Transfer · Conventional Mortgage GENERAL MORTGAGE CAPITAL CORP |
| Dec 2, 2020 | Grant Deed, Transfer · Commercial Mortgage ASIAN PACIFIC NATIONAL BANK |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Dec 2, 2020 · Amount on File |
| Deed Sale | Dec 2, 2020 · Amount on File |
| Prior Sale | Nov 28, 2016 · Amount on File |
| Deed Document Number | 20201563775 |
| Last Transfer Date | May 1, 2023 |
| Transfer Doc | 0000447720 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Recording Date | Jul 10, 2023 |
| Property Address | 1030 SUMMITRIDGE DR, DIAMOND BAR, CA 91765-4364 |
| Document Number | 0000447719 |
| Map Reference | MB 1063 PG 72-76 |
| Instrument Date | May 1, 2023 |
| Instrument | 23-0447719 |
| Transaction Type | Transfer |
| Record Updated | Jul 24, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | 3206 MONTELLANO AVE, HACIENDA HEIGHTS, CA 91745-6149 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Recording Date | Jul 10, 2023 |
| Property Address | 1030 SUMMITRIDGE DR, DIAMOND BAR, CA 91765-4364 |
| Document Number | 0000447720 |
| Map Reference | MB 1063 PG 72-76 |
| Instrument Date | May 1, 2023 |
| Instrument | 23-0447720 |
| Transaction Type | Transfer |
| Record Updated | Jul 24, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 3206 MONTELLANO AVE, HACIENDA HEIGHTS, CA 91745-6149 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Recording Date | Apr 5, 2022 |
| Property Address | 1030 SUMMITRIDGE DR, DIAMOND BAR, CA 91765-4364 |
| Document Number | 0000375590 |
| Map Reference | MB 1063 PG 72-76 |
| Instrument Date | Mar 29, 2022 |
| Instrument | 22-0375590 |
| Transaction Type | Transfer |
| Record Updated | Apr 12, 2022 |
| Title Company | WFG NATIONAL TITLE COMPANY |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 3206 MONTELLANO AVE, HACIENDA HEIGHTS, CA 91745-6149 |
| Document Number | 0000375591 |
|---|---|
| Date | Apr 5, 2022 |
| Instrument | 22-0375591 |
| Name | GENERAL MORTGAGE CAPITAL CORP |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | May 1, 2052 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Recording Date | Dec 2, 2020 |
| Property Address | 1030 SUMMITRIDGE DR, DIAMOND BAR, CA 91765-4364 |
| Document Number | 0001563775 |
| Map Reference | MB 1063 PG 72-76 |
| Instrument Date | Oct 28, 2020 |
| Instrument | 20-1563775 |
| Transaction Type | Transfer |
| Record Updated | Sep 22, 2021 |
| Title Company | WFG NATIONAL 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 | Joint Tenants |
| Address | 3206 MONTELLANO AVE, HACIENDA HEIGHTS, CA 91745-6149 |
| Document Number | 0001563776 |
|---|---|
| Date | Dec 2, 2020 |
| Instrument | 20-1563776 |
| Name | ASIAN PACIFIC NATIONAL BANK |
|---|---|
| Type | Bank |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount on Record |
The 2025 property tax bill for 1030 Summitridge Dr was $17,431.
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 | $1,380,098 (+2%) Land $662,447 Building $717,651 | |
| 2025 | $17,431.00 | $1,353,038 Land $649,458 Building $703,580 |
| 2023 | $16,218.00 (+2.2%) | $1,300,500 (+2%) Land $624,240 Building $676,260 |
| 2022 | $15,869.00 | $1,275,000 Land $612,000 Building $663,000 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 1030 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 1030 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 |
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