Los Angeles County property record for 10550 Marsen St, El Monte, CA 91731
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,330 sqft · built 1950 |
| Lot Size | 0.12 acres (5,229 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $3,148 (2025) |
| Deeds & Mortgages | Mar 2018 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 8576-019-012 |
| Primary APN | 8576-019-012 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,330 sqft Living Area |
| Year Built | Built 1950 |
|---|---|
| Effective Year Built | Effective 1955 |
| Architectural Style | Conventional |
| Exterior Material | Stucco |
| Construction Type | Wood |
| Roof Type | Hip |
| Roof Material | Composition Shingle |
| Lot Area | 5,229 sqft (0.12 acres) |
| Lot Dimensions | 105 ft deep x 33 ft wide |
| Garage Type | Detached |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Water Source | Commercial |
| Street Address | 10550 MARSEN ST |
|---|---|
| City | EL MONTE |
| State | CA |
| Zip | 91731-1546 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | EMR1A* |
| Legal Description | TRACT # 15900 LOT 157 |
| Legal Subdivision | 15900 |
| Legal Tract | 15900 |
| Legal Block | 1 |
| Legal Lot Number | 157 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | UPPER SAN GABRIEL VALLEY |
| Census Block Group | 1 |
| Census Block | 1000 |
| Census Tract | 432300 |
10550 Marsen St is owned and occupied by an individual who acquired it in May 2004.
Source: Los Angeles County records, as of August 25, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 10550 MARSEN ST, EL MONTE, CA 91731-1546 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
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 | Name on Deed |
|---|---|
| Last Transfer Date | May 13, 2004 |
| Transfer Doc | 0001310807 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Property Address | 10550 MARSEN ST, EL MONTE, CA 91731-1546 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | CHICAGO TITLE |
| Name | Verified Name |
|---|
| Document Number | 0000258989 |
|---|---|
| Date | Mar 16, 2018 |
| Instrument | 18-0258989 |
| Name | FIRST CITY CU |
|---|---|
| Type | Credit Union |
| Address | LOS ANGELES, CA 90012 |
| Amount | Amount on Record |
|---|---|
| Term | 300 Months |
| Due | Mar 16, 2043 |
The 2025 property tax bill for 10550 Marsen St was $3,148 with a homeowner's exemption.
Source: Los Angeles County assessment roll, as of August 25, 2026
| Type | Name |
|---|---|
| State | California |
| County | Los Angeles County |
| Municipality | El Monte City |
| Elementary School District | El Monte City School District (KG - 08) |
| Secondary School District | El Monte Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $197,592 (+2%) Land $72,209 Building $125,383 | |
| 2025 | $3,148.00 Homeowner's exemption | $193,719 Land $70,794 Building $122,925 |
| 2023 | $2,930.00 (+4.23%) Homeowner's exemption | $186,198 Land $68,046 Building $118,152 |
| 2022 | $2,811.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 10550 Marsen 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 10550 Marsen 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-SOUTH ARCADIA private · serves 27,430 people · EPA ID CA1910212 |
|---|---|
| Water Source | Groundwater |
| 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 518 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL in parts of the area | 5,000 / 5,000 |
| Spectrum Cable | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: GeoLinks.
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