Los Angeles County property record for 11102 Thienes Ave, South El Monte, CA 91733
| Property Type | Duplex |
|---|---|
| Details | 5 bd · 2 ba · 2,528 sqft · built 1951 |
| Lot Size | 0.239 acres (10,391 sqft) |
| Owner | 2 Trust Names on File |
| Tax Bill | $3,919 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 8114-031-014 |
| Primary APN | 8114-031-014 |
|---|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 2 Baths |
| Units | 2 Units |
| Building Area | 2,528 sqft Living Area |
| Year Built | Built 1951 |
|---|---|
| Effective Year Built | Effective 1951 |
| Architectural Style | Duplex Single |
| Construction Type | Wood |
| Lot Area | 10,391 sqft (0.239 acres) |
| Lot Dimensions | 180 ft deep x 60 ft wide |
| Total Buildings | 2 Buildings |
| Cooling System | Central |
|---|---|
| Heating System | Floor/Wall Furnace |
| Street Address | 11102 THIENES AVE |
|---|---|
| City | SOUTH EL MONTE |
| State | CA |
| Zip | 91733-4006 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | SER1* |
| Legal Description | TRACT # 11333 LOT 3 BLK C |
| Legal Subdivision | 11333 |
| Legal Tract | 11333 |
| Legal Block | C |
| Legal Lot Number | 3 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | UPPER SAN GABRIEL VALLEY |
| Census Block Group | 3 |
| Census Block | 3001 |
| Census Tract | 433804 |
11102 Thienes Ave, a duplex, is owner-occupied and held in a trust since June 2006.
Source: Los Angeles County records, as of August 25, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 11102 THIENES AVE, SOUTH EL MONTE, CA 91733-4006 |
| Occupancy | Owner Occupied |
| 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 Transfer Date | Jun 8, 2006 |
| Transfer Doc | 0001549503 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 11102 Thienes Ave was $3,919 with a homeowner's exemption, up 10.1% from the year before.
Source: Los Angeles County assessment roll, as of August 25, 2026
| Type | Name |
|---|---|
| State | California |
| County | Los Angeles County |
| Municipality | South El Monte City |
| Secondary School District | El Monte Union High School District (09 - 12) |
| Elementary School District | Mountain View Elementary School District (KG - 08) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $238,054 (+2%) Land $55,684 Building $182,370 | |
| 2025 | $3,919.00 (+10.12%) Homeowner's exemption | $233,388 Land $54,593 Building $178,795 |
| 2024 | $3,559.00 (+3.55%) | |
| 2023 | $3,437.00 (+0.35%) Homeowner's exemption | $224,327 Land $52,474 Building $171,853 |
| 2022 | $3,425.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 11102 Thienes 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 11102 Thienes 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 | SAN GABRIEL VALLEY WATER CO.-EL MONTE private · serves 240,000 people · EPA ID CA1910039 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Aug 2024 |
| Lead | Under 1 ppb (2024–2026) action level 15 ppb |
| Water Quality | Treatment failure resolved · Jun 2019 |
|---|---|
| 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. This system sells water to local utilities; the supplier billing this address may be one of them.
Source: FCC Broadband Data Collection, based on 522 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| Starlink Satellite | 280 / 30 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: GeoLinks, Verizon.
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