Los Angeles County property record for 309 W 3rd St, San Dimas, CA 91773
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 818 sqft · built 1912 |
| Lot Size | 0.159 acres (6,906 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $355,000 (Aug 2013) |
| Tax Bill | $5,643 (2025) |
| Deeds & Mortgages | Jun 2017 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 8386-013-085 |
| Primary APN | 8386-013-085 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Building Area | 818 sqft Living Area |
| Year Built | Built 1912 |
|---|---|
| Effective Year Built | Effective 1912 |
| Construction Type | Wood |
| Lot Area | 6,906 sqft (0.159 acres) |
| Heating System | Floor/Wall Furnace |
|---|
| Street Address | 309 W 3RD ST |
|---|---|
| City | SAN DIMAS |
| State | CA |
| Zip | 91773-2033 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | SDMFD* |
| Legal Description | LAND DESC IN DOC 1134145,080113 LOT 4, POR LOT 1 TR=682, POR LOT 14 TR=536 |
| Legal Subdivision | RANCHO SAN JOSE |
| Legal Tract | 682,536 |
| Legal Block | 2 |
| Legal Lot Number | 4 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | EAST SAN GABRIEL VALLEY |
| Census Block Group | 2 |
| Census Block | 2017 |
| Census Tract | 401311 |
309 W 3rd St is owned and occupied by two individuals who bought it in August 2013.
Source: Los Angeles County records, as of August 25, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 309 W 3RD ST, SAN DIMAS, CA 91773-2033 |
| 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.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Aug 1, 2013 · Amount on File |
| Deed Sale | Aug 1, 2013 · Amount on File |
| Prior Sale | Mar 30, 2012 · Amount on File |
| Deed Document Number | 20131134145 |
| Prior Transfer Date | Jun 27, 1999 |
| Prior Transfer Doc | 0001229266 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Property Address | 309 W 3RD ST, SAN DIMAS, CA 91773-2033 |
| Transaction Type | Mortgage |
| Record Updated | Jul 21, 2022 |
| Title Company | ORANGE COAST TITLE CO SOCAL |
| Name | Verified Name |
|---|
| Document Number | 0000609981 |
|---|---|
| Date | Jun 2, 2017 |
| Instrument | 17-0609981 |
| Name | UNITED WHOLESALE MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Address | TROY, MI 48083 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 240 Months |
| Due | Jun 1, 2037 |
The 2025 property tax bill for 309 W 3rd St was $5,643.
Source: Los Angeles County assessment roll, as of August 25, 2026
| Type | Name |
|---|---|
| State | California |
| County | Los Angeles County |
| Municipality | San Dimas City |
| Unified School District | Bonita Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $443,872 (+2%) Land $375,109 Building $68,763 | |
| 2025 | $5,643.00 | $435,169 Land $367,754 Building $67,415 |
| 2023 | $5,288.00 (+1.67%) | $418,274 Land $353,475 Building $64,799 |
| 2022 | $5,201.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 309 W 3rd St 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.
The area around 309 W 3rd St has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land 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 | GSWC-SAN DIMAS private · serves 56,564 people · EPA ID CA1910142 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | May 2025 |
| Also Mapped Here | METROPOLITAN WATER DIST. OF SO. CAL. |
| Lead | 2 ppb (2024–2026) 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 517 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Frontier Fiber | 7,000 / 7,000 |
| Spectrum Cable | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: GeoLinks.
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