Los Angeles County property record for 3309 Prospect Ave, Rosemead, CA 91770
| Property Type | Duplex |
|---|---|
| Details | 5 bd · 3 ba · 2,072 sqft · built 1965 |
| Lot Size | 0.129 acres (5,597 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $805,000 (May 2016) |
| Tax Bill | $12,504 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 5286-012-031 |
| Primary APN | 5286-012-031 |
|---|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3 Baths |
| Units | 2 Units |
| Building Area | 2,072 sqft Living Area |
| Year Built | Built 1965 |
|---|---|
| Effective Year Built | Effective 1975 |
| Architectural Style | Duplex Single |
| Construction Type | Wood |
| Lot Area | 5,597 sqft (0.129 acres) |
| Lot Dimensions | 107 ft deep x 52 ft wide |
| Cooling System | HVAC |
|---|
| Street Address | 3309 PROSPECT AVE |
|---|---|
| City | ROSEMEAD |
| State | CA |
| Zip | 91770-2236 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | RMR2* |
| Legal Description | ANDOVER TR S 51.88 FT OF N 93.13 FT OF E 111.5 FT (EX OF ST) OF LOT 28 |
| Legal Subdivision | ANDOVER TRACT |
| Legal Tract | S |
| Legal Block | 2 |
| Legal Lot Number | 28 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | SOUTHWEST SAN GABRIEL VALLEY |
| Census Block Group | 2 |
| Census Block | 2005 |
| Census Tract | 482303 |
Source: Los Angeles County records, as of August 25, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 3309 PROSPECT AVE, ROSEMEAD, CA 91770-2236 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | May 11, 2016 · Amount on Record |
| Deed Sale | May 11, 2016 · Amount on Record |
| Prior Sale | May 13, 2015 · Amount on Record |
| Deed Document Number | 2016540022 |
| Prior Transfer Date | Aug 30, 2000 |
| Prior Transfer Doc | 0001362783 |
| Record Updated | Oct 29, 2026 |
Source: Los Angeles County assessment roll, as of August 25, 2026
| Type | Name |
|---|---|
| State | California |
| County | Los Angeles County |
| Municipality | Rosemead City |
| Secondary School District | Alhambra Unified School District (9-12) (09 - 12) |
| Elementary School District | Garvey Elementary School District (KG - 08) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $972,008 (+2%) Land $730,517 Building $241,491 | |
| 2025 | $12,504.00 (+4.74%) | $952,950 (+4.04%) Land $716,194 Building $236,756 |
| 2024 | $11,938.00 (+3.86%) | |
| 2023 | $11,494.00 (+5.02%) | $915,947 Land $688,384 Building $227,563 |
| 2022 | $10,945.00 |
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 | 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-SOUTH SAN GABRIEL private · serves 26,451 people · EPA ID CA1910223 |
|---|---|
| Water Source | Purchased surface water from METROPOLITAN WATER DIST. OF SO. CAL. |
| Last State Inspection | Mar 2026 |
| Lead | Under 1 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 751 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: AT&T, GeoLinks.
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