Los Angeles County property record for 3099 Windmill Dr, Diamond Bar, CA 91765
| Property Type | Single Family Home |
|---|---|
| Details | 7 bd · 6 ba · 9,681 sqft · built 2003 |
| Lot Size | 1.75 acres (76,566 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $3,500,000 (Dec 2013) |
| Tax Bill | $52,610 (2025) |
| Deeds & Mortgages | Jun 2026 Sale Mar 2017 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 8713-021-035 |
| Primary APN | 8713-021-035 |
|---|
| Bedrooms | 7 Beds |
|---|---|
| Full Baths | 6 Baths |
| Building Area | 9,681 sqft Living Area |
| Year Built | Built 2003 |
|---|---|
| Effective Year Built | Effective 2003 |
| Construction Type | Wood |
| Lot Area | 76,566 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 3099 WINDMILL DR |
|---|---|
| City | DIAMOND BAR |
| State | CA |
| Zip | 91765-3670 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | LCR120000* |
| Legal Description | TR=50314 LOT 5 |
| Legal Subdivision | 50314 |
| Legal Tract | 50314 |
| Legal Block | 1 |
| Legal Lot Number | 5 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | EAST SAN GABRIEL VALLEY |
| Census Block Group | 1 |
| Census Block | 1005 |
| Census Tract | 403324 |
Source: Los Angeles County records, as of June 30, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Mailing Address | 3099 WINDMILL DR, DIAMOND BAR, CA 91765-3670 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Husband and Wife |
| Date | Document |
|---|---|
| Jun 17, 2026 | Grant Deed, Transfer NONE LISTED ON DOCUMENT |
| Mar 23, 2017 | Deed of Trust, Mortgage · ARM CITY NATIONAL BANK |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Dec 6, 2013 · Amount on Record |
| Deed Sale | Dec 6, 2013 · Amount on Record |
| Prior Sale | Jun 25, 2008 |
| Deed Document Number | 20131725351 |
| Prior Transfer Date | May 17, 2006 |
| Prior Transfer Doc | 0001164288 |
| Record Updated | Sep 20, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Recording Date | Jun 17, 2026 |
| Property Address | 3099 WINDMILL DR, DIAMOND BAR, CA 91765-3670 |
| Document Number | 0000445422 |
| Instrument Date | Apr 1, 2026 |
| Instrument | 2026445422 |
| Transaction Type | Transfer |
| Record Updated | Jul 12, 2026 |
| Title Company | NONE LISTED ON DOCUMENT |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 3099 WINDMILL DR, DIAMOND BAR, CA 91765-3670 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Property Address | 3099 WINDMILL DR, DIAMOND BAR, CA 91765-3670 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Name | Verified Name |
|---|
| Document Number | 0000328779 |
|---|---|
| Date | Mar 23, 2017 |
| Instrument | 17-0328779 |
| Name | CITY NATIONAL BANK |
|---|---|
| Type | Bank |
| Address | LOS ANGELES, CA 90071 |
| Type | ARM |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Apr 1, 2047 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 3.62% |
| Type Change Date | Apr 1, 2024 |
| Change Frequency | Annually |
| Min Rate At Change | 3% |
| Max Rate At Change | 8.62% |
| Index | 1-Year CMT |
| Max Rate | 8.62% |
Source: Los Angeles County assessment roll, as of May 21, 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 |
|---|---|---|
| 2025 | $52,610.00 (+7.28%) | $4,290,510 (+4.04%) Land $2,204,342 Building $2,086,168 |
| 2023 | $49,040.00 (+2.18%) | $4,123,906 Land $2,118,746 Building $2,005,160 |
| 2022 | $47,992.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
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 | High above 76% of the US · above 53% of California |
|---|---|
| Wildfire Likelihood | 0.4% 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 234 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable | 1,000 / 1,000 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Frontier, GeoLinks, Verizon.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures