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311 E Mariposa St, Altadena
APN 5835-042-018 · map page 5835-042
A 7,676 sq ft residential lot with no building on the tax roll at 311 E Mariposa St in Altadena, Los Angeles County (APN 5835-042-018). It burned in the Eaton Fire (2025). It is not in a CAL FIRE hazard zone and outside the FEMA flood zone (zone X). It is zoned R-1-7500 (single-family residence) by Los Angeles County. It is assessed at $12,980, with a yearly tax bill of $769. Property taxes are not in default.
Risk Assessment
Flood
Zone X — AREA OF MINIMAL FLOOD HAZARD
Outside flood zone
Low Risk
Fire
CAL FIRE hazard severity zone
None
Low Risk
Past Fires
1 mapped fire since 2025
Eaton Fire, 2025
High Risk
Property Details
- APN
- 5835-042-018
- Area
- Altadena, Los Angeles County
- Zoning
- R-1-7500 · Single-Family Residence
- Assessor Use
- Single (0100)
Solar
4,446 hrs/yr
Excellent
Weather & Climate
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Taxes
- Tax Status
- Current
- Yearly Tax Bill
- $769
From the LA County Treasurer and Tax Collector's rolls, checked Oct 19, 2026.
Tax Assessment History
| Year | Land | Improvement | Total |
|---|---|---|---|
| 2025 | $12,726 | $0 | $12,726 |
| 2024 | $19,195 | $64,544 | $83,739 |
| 2023 | $18,819 | $63,279 | $82,098 |
| 2022 | $18,450 | $62,039 | $80,489 |
| 2021 | $18,089 | $60,823 | $78,912 |
| 2020 | $17,904 | $60,200 | $78,104 |
| 2019 | $17,553 | $59,020 | $76,573 |
| 2018 | $17,209 | $57,863 | $75,072 |
| 2017 | $16,872 | $56,729 | $73,601 |
| 2016 | $16,542 | $55,617 | $72,159 |
Owner
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Full parcel report · $29
Can you build on it, how do you reach it, and what is it worth? Flood, fire, slope, road access, tax history and nearby sales in one report.
Official record: county assessor