Los Angeles County property record for 233 W 4th St, San Dimas, CA 91773
| Property Type | Duplex |
|---|---|
| Details | 5 bd · 4 ba · 2,085 sqft · built 1984 |
| Lot Size | 0.164 acres (7,134 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $220,000 (May 2000) |
| Tax Bill | $5,075 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 8387-008-041 |
| Primary APN | 8387-008-041 |
|---|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 4 Baths |
| Units | 2 Units |
| Building Area | 2,085 sqft Living Area |
| Year Built | Built 1984 |
|---|---|
| Effective Year Built | Effective 1984 |
| Architectural Style | Duplex Single |
| Construction Type | Wood |
| Lot Area | 7,134 sqft (0.164 acres) |
| Cooling System | Central |
|---|
| Street Address | 233 W 4TH ST |
|---|---|
| City | SAN DIMAS |
| State | CA |
| Zip | 91773-2147 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | SDMFD* |
| Legal Description | SAN DIMAS LOT 90 |
| Legal Subdivision | TOWN OF SAN DIMAS |
| Legal Block | 2 |
| Legal Lot Number | 90 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | EAST SAN GABRIEL VALLEY |
| Census Block Group | 2 |
| Census Block | 2006 |
| Census Tract | 401311 |
233 W 4th St, a duplex, is held in a trust since December 2012.
Source: Los Angeles County records, as of September 3, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 21254 STOCKTON PASS RD, WALNUT, CA 91789-5109 |
| Owner Type | Company |
| Vesting | Trust, Personal Trust |
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 | May 11, 2000 · Amount on File |
| Deed Sale | May 11, 2000 · Amount on File |
| Deed Document Number | 2000725688 |
| Last Transfer Date | Dec 21, 2012 |
| Transfer Doc | 0002027027 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 233 W 4th St was $5,075, up 7% from the year before.
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 | $344,878 (+2%) Land $125,405 Building $219,473 | |
| 2025 | $5,075.00 (+6.98%) | $338,117 Land $122,947 Building $215,170 |
| 2024 | $4,744.00 (+2.22%) | |
| 2023 | $4,641.00 (+1.78%) | $324,989 Land $118,174 Building $206,815 |
| 2022 | $4,560.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 233 W 4th 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 233 W 4th 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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