Los Angeles County property record for 523 E Mariposa Ave, El Segundo, CA 90245
| Property Type | Duplex |
|---|---|
| Details | 3 bd · 2 ba · 1,678 sqft · built 1964 |
| Lot Size | 0.143 acres (6,225 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $775,000 (Oct 2008) |
| Tax Bill | $11,406 (2025) |
| Deeds & Mortgages | Apr 2022 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 4133-008-025 |
| Primary APN | 4133-008-025 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Units | 2 Units |
| Stories | 1 Story |
| Building Area | 1,678 sqft Living Area |
| Year Built | Built 1964 |
|---|---|
| Effective Year Built | Effective 1964 |
| Architectural Style | Duplex Single |
| Construction Type | Wood |
| Lot Area | 6,225 sqft (0.143 acres) |
| Total Buildings | 2 Buildings |
| Heating System | Floor/Wall Furnace |
|---|
| Street Address | 523 E MARIPOSA AVE |
|---|---|
| City | EL SEGUNDO |
| State | CA |
| Zip | 90245-3013 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | ESR2YY |
| Legal Description | TRACT NO 2368 THAT PART S OF N 150 FT MEASURED ON E AND W LINES OF LOT 7 |
| Legal Subdivision | 2368 |
| Legal Tract | 2368 |
| Legal Block | 2 |
| Legal Lot Number | 7 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | SOUTH BAY CITIES |
| Census Block Group | 2 |
| Census Block | 2008 |
| Census Tract | 620001 |
Source: Los Angeles County records, as of May 21, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Company Names on Record |
|---|---|
| Mailing Address | 523 E MARIPOSA AVE, EL SEGUNDO, CA 90245-3013 |
| Owner Type | Company |
| Vesting | Borrower in Default |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Oct 30, 2008 · Amount on Record |
| Deed Sale | Oct 30, 2008 · Amount on Record |
| Prior Sale | Apr 11, 2006 · Amount on Record |
| Deed Document Number | 20081928737 |
| Last Transfer Date | Apr 20, 2022 |
| Transfer Doc | 0000472077 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Recording Date | Apr 29, 2022 |
| Property Address | 523 E MARIPOSA AVE, EL SEGUNDO, CA 90245-3013 |
| Document Number | 0000472077 |
| Map Reference | MB 22 PG 145 |
| Instrument Date | Apr 20, 2022 |
| Instrument | 22-0472077 |
| Transaction Type | Transfer |
| Record Updated | Jun 7, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Living Trust |
| Address | 523 E MARIPOSA AVE, EL SEGUNDO, CA 90245-3013 |
Source: Los Angeles County assessment roll, as of May 21, 2026
| Type | Name |
|---|---|
| State | California |
| County | Los Angeles County |
| Municipality | El Segundo City |
| Unified School District | El Segundo Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $11,406.00 (+2.41%) | $998,003 (+4.04%) Land $804,847 Building $193,156 |
| 2024 | $11,138.00 (+2.68%) | |
| 2023 | $10,847.00 (-1.09%) | $959,251 Land $773,595 Building $185,656 |
| 2022 | $10,966.00 |
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 | EL SEGUNDO-CITY, WATER DEPT. serves 16,777 people · EPA ID CA1910040 |
|---|---|
| Water Source | Purchased surface water from METROPOLITAN WATER DIST. OF SO. CAL. |
| Last State Inspection | Mar 2024 |
| Lead | Under 1 ppb (2021–2023) 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 865 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom Fiber | 10,000 / 10,000 |
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| Verizon Fixed Wireless | 1,000 / 75 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
May also be available: Astound Broadband, GeoLinks.
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