Los Angeles County property record for 437 E Mariposa St, Altadena, CA 91001 · Last verified August 2026
| Property Type | Duplex |
|---|---|
| Details | 5 bd · 4 ba · 4,346 sqft · built 1937 |
| Lot Size | 1.26 acres (55,071 sqft) |
| Owner | 2 Company Names on File |
| Tax Bill | $3,671 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 5840-005-011 |
| Primary APN | 5840-005-011 |
|---|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 4 Baths |
| Units | 2 Units |
| Building Area | 4,346 sqft Living Area |
| Year Built | Built 1937 |
|---|---|
| Effective Year Built | Effective 1937 |
| Architectural Style | Duplex Single |
| Construction Type | Wood |
| Lot Area | 55,071 sqft |
| Total Buildings | 2 Buildings |
| Heating System | Floor/Wall Furnace |
|---|
| Street Address | 437 E MARIPOSA ST |
|---|---|
| City | ALTADENA |
| State | CA |
| Zip | 91001-2206 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Legal Description | MAP 1 ALTADENA LOTS 11 AND LOT 12 BLK 24 |
| Legal Subdivision | ALTADENA 01 |
| Legal Block | 24 |
| Legal Lot Number | 11,12 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | PASADENA |
| Census Block Group | 5 |
| Census Block | 5005 |
| Census Tract | 460200 |
Source: Los Angeles County records · APN 5840-005-011
Assessment roll updated May 21, 2026 · Last verified August 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 File |
|---|---|
| Mailing Address | 915 EDIE DR, DUARTE, CA 91010-2135 |
| Owner Type | Company |
| Vesting | Trust, Family Trust |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Transfer Date | Jun 18, 2024 |
| Transfer Doc | 0000412151 |
| Record Updated | Sep 20, 2026 |
Source: Los Angeles County records · Assessment roll updated May 21, 2026 · Last verified August 2026
| Type | Name |
|---|---|
| State | California |
| County | Los Angeles County |
| Unified School District | Pasadena Unified School District (KG - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $3,671.00 (-56.47%) | $262,898 (-57.85%) Land $262,898 |
| 2024 | $8,434.00 (+2.94%) | |
| 2023 | $8,193.00 (+3.36%) | $623,736 Land $388,753 Building $234,983 |
| 2022 | $7,927.00 |
Source: FEMA National Flood Hazard Layer, Los Angeles County (06037C), updated September 30, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Special Flood Hazard Area | No |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
Values are read at the parcel center point; lenders make the official flood determination.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures