Los Angeles County property record for 2231 Mountain Ave, Duarte, CA 91010
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,160 sqft · built 1949 |
| Lot Size | 0.125 acres (5,426 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $255,000 (Apr 2009) |
| Tax Bill | $4,658 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 8521-009-015 |
| Primary APN | 8521-009-015 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,160 sqft Living Area |
| Year Built | Built 1949 |
|---|---|
| Effective Year Built | Effective 1951 |
| Architectural Style | Conventional |
| Exterior Material | Stucco |
| Construction Type | Wood |
| Roof Type | Gable |
| Roof Material | Composition Shingle |
| Lot Area | 5,426 sqft (0.125 acres) |
| Lot Dimensions | 109 ft deep x 52 ft wide |
| Heating System | Floor/Wall Furnace |
|---|
| Street Address | 2231 MOUNTAIN AVE |
|---|---|
| City | DUARTE |
| State | CA |
| Zip | 91010-3557 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | LCA15000* |
| Legal Description | TRACT # 15959 LOT 48 |
| Legal Subdivision | 15959 |
| Legal Tract | 15959 |
| Legal Block | 1 |
| Legal Lot Number | 48 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | UPPER SAN GABRIEL VALLEY |
| Census Block Group | 1 |
| Census Block | 1010 |
| Census Tract | 431200 |
2231 Mountain Ave is held in a trust since November 2024.
Source: Los Angeles County records, as of August 25, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 18430 BROOKHURST ST, 202I, FOUNTAIN VALLEY, CA 92708-6766 |
| 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.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Apr 29, 2009 · Amount on File |
| Deed Sale | Apr 29, 2009 · Amount on File |
| Prior Sale | Nov 17, 2008 · Amount on File |
| Deed Document Number | 2009626815 |
| Last Transfer Date | Nov 24, 2024 |
| Transfer Doc | 0000867401 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 2231 Mountain Ave was $4,658.
Source: Los Angeles County assessment roll, as of August 25, 2026
| Type | Name |
|---|---|
| State | California |
| County | Los Angeles County |
| Unified School District | Duarte Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $334,931 (+2%) Land $237,871 Building $97,060 | |
| 2025 | $4,658.00 | $328,364 Land $233,207 Building $95,157 |
| 2023 | $4,362.00 (+2.49%) | $315,615 Land $224,152 Building $91,463 |
| 2022 | $4,256.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 2231 Mountain Ave 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 2231 Mountain Ave 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 | CAL-AM WATER COMPANY - DUARTE private · serves 24,767 people · EPA ID CA1910186 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Feb 2025 |
| Lead | 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 858 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Frontier Fiber | 5,000 / 5,000 |
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| Starlink Satellite | 280 / 30 |
May also be available: GeoLinks, T-Mobile.
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