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440 W Mariposa St, Altadena
APN 5829-034-023 · map page 5829-034
A 9,647 sq ft residential lot with no building on the tax roll at 440 W Mariposa St in Altadena, Los Angeles County (APN 5829-034-023). 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 $9,895, with a yearly tax bill of $661. 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
- 5829-034-023
- 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
- $661
From the LA County Treasurer and Tax Collector's rolls, checked Oct 19, 2026.
Tax Assessment History
| Year | Land | Improvement | Total |
|---|---|---|---|
| 2025 | $9,701 | $0 | $9,701 |
| 2024 | $14,633 | $31,452 | $46,085 |
| 2023 | $14,347 | $30,836 | $45,183 |
| 2022 | $14,066 | $30,232 | $44,298 |
| 2021 | $13,791 | $29,640 | $43,431 |
| 2020 | $13,650 | $29,337 | $42,987 |
| 2019 | $13,383 | $28,762 | $42,145 |
| 2018 | $13,121 | $28,199 | $41,320 |
| 2017 | $12,864 | $27,647 | $40,511 |
| 2016 | $12,612 | $27,105 | $39,717 |
Owner
Who owns this land?
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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