Los Angeles County property record for 1016 Summitridge Dr, Diamond Bar, CA 91765
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,744 sqft · built 1987 |
| Lot Size | 0.141 acres (6,118 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $940,000 (Jul 2018) |
| Tax Bill | $13,782 (2025) |
| Deeds & Mortgages | Sep 2021 Line of Credit Mar 2021 Mortgage + 3 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 8701-040-058 |
| Primary APN | 8701-040-058 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Building Area | 2,744 sqft Living Area |
| Year Built | Built 1987 |
|---|---|
| Effective Year Built | Effective 1987 |
| Construction Type | Wood |
| Lot Area | 6,118 sqft (0.141 acres) |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 1016 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 4 |
| Legal Subdivision | 42571 |
| Legal Tract | 42571 |
| Legal Block | 2 |
| Legal Lot Number | 4 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | EAST SAN GABRIEL VALLEY |
| Census Block Group | 2 |
| Census Block | 2010 |
| Census Tract | 403320 |
1016 Summitridge Dr is owned and occupied by two individuals who bought it in July 2018.
Source: Los Angeles County records, as of August 25, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 1016 SUMMITRIDGE DR, DIAMOND BAR, CA 91765-4364 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
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 |
|---|---|
| Sep 7, 2021 | Deed of Trust, Mortgage · Line of Credit US BANK NA |
| Mar 15, 2021 | Deed of Trust, Mortgage · Conventional Mortgage US BANK NA |
| Feb 6, 2017 | Deed of Trust, Mortgage · Line of Credit US BANK NA |
| May 1, 2020 | Deed of Trust, Mortgage · Conventional Mortgage US BANK NA |
| Jul 11, 2018 | Grant Deed, Transfer · ARM ROYAL BUSINESS BANK |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jul 11, 2018 · Amount on File |
| Deed Sale | Jul 11, 2018 · Amount on File |
| Prior Sale | Dec 1, 2004 · Amount on File |
| Deed Document Number | 2018693094 |
| Prior Transfer Date | Dec 2, 2004 |
| Prior Transfer Doc | 0003179798 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Property Address | 1016 SUMMITRIDGE DR, DIAMOND BAR, CA 91765-4364 |
| Transaction Type | Mortgage |
| Record Updated | Sep 15, 2021 |
| Title Company | SOLIDIFI |
| Name | Verified Name |
|---|---|
| Address | 1016 SUMMITRIDGE DR, DIAMOND BAR, CA 91765-4364 |
| Document Number | 0001364657 |
|---|---|
| Date | Sep 7, 2021 |
| Instrument | 21-1364657 |
| Name | US BANK NA |
|---|---|
| Type | Bank |
| Address | LA JOLLA, CA 92037 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Property Address | 1016 SUMMITRIDGE DR, DIAMOND BAR, CA 91765-4364 |
| Transaction Type | Mortgage |
| Record Updated | Mar 22, 2021 |
| Title Company | TICOR TITLE COMPANY/CA, TICOR TITLE COMPANY OF CA |
| Name | Verified Name |
|---|---|
| Address | 1016 SUMMITRIDGE DR, DIAMOND BAR, CA 91765-4364 |
| Document Number | 0000410825 |
|---|---|
| Date | Mar 15, 2021 |
| Instrument | 21-0410825 |
| Name | US BANK NA |
|---|---|
| Type | Bank |
| Address | OWENSBORO, KY 42301 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Apr 1, 2051 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Property Address | 1016 SUMMITRIDGE DR, DIAMOND BAR, CA 91765-4364 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | SOUTHWEST FINANCIAL SVCS LTD |
| Name | Verified Name |
|---|
| Document Number | 0000148877 |
|---|---|
| Date | Feb 6, 2017 |
| Instrument | 17-0148877 |
| Name | US BANK NA |
|---|---|
| Type | Bank |
| Address | CINCINNATI, OH 45202 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Term | 358 Months |
| Due | Dec 15, 2046 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Property Address | 1016 SUMMITRIDGE DR, DIAMOND BAR, CA 91765-4364 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | FIDELITY NATIONAL TITLE |
| Name | Verified Name |
|---|
| Document Number | 0000480034 |
|---|---|
| Date | May 1, 2020 |
| Instrument | 20-0480034 |
| Name | US BANK NA |
|---|---|
| Type | Bank |
| Address | OWENSBORO, KY 42301 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | May 1, 2050 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Recording Date | Jul 11, 2018 |
| Property Address | 1016 SUMMITRIDGE DR, DIAMOND BAR, CA 91765-4364 |
| Document Number | 0000693094 |
| Map Reference | MB 1063 PG 72-76 |
| Instrument Date | Jun 4, 2018 |
| Instrument | 18-0693094 |
| Transaction Type | Transfer |
| Record Updated | Sep 22, 2021 |
| 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 | Joint Tenants |
| Address | 1016 SUMMITRIDGE DR, DIAMOND BAR, CA 91765-4364 |
| Investor | Possibly a Property Investor |
| Document Number | 0000693095 |
|---|---|
| Date | Jul 11, 2018 |
| Instrument | 18-0693095 |
| Name | ROYAL BUSINESS BANK |
|---|---|
| Type | Bank |
| Type | ARM |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Aug 1, 2048 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 4.75% |
| Type Change Date | Aug 1, 2025 |
| Change Frequency | Annually |
| Min Rate At Change | 3.75% |
| Max Rate At Change | 5.75% |
| Index | 1-Year LIBOR |
| Max Rate | 5.75% |
The 2025 property tax bill for 1016 Summitridge Dr was $13,782.
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 | $1,069,553 (+2%) Land $604,867 Building $464,686 | |
| 2025 | $13,782.00 | $1,048,582 Land $593,007 Building $455,575 |
| 2023 | $12,805.00 (+2.22%) | $1,007,867 Land $569,981 Building $437,886 |
| 2022 | $12,527.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 1016 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 1016 Summitridge Dr is moderate, ranking above 62% 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 62% of the US · lower than 62% of California |
|---|---|
| Wildfire Likelihood | 0.2% 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 414 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 |
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