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501 Concha St, Altadena
APN 5842-021-007 · map page 5842-021
A 10,491 sq ft residential lot with no building on the tax roll at 501 Concha St in Altadena, Los Angeles County (APN 5842-021-007). 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-1-10000 (single-family residence) by Los Angeles County. It is assessed at $495,074, with a yearly tax bill of $6,500. 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
- 5842-021-007
- Area
- Altadena, Los Angeles County
- Zoning
- R-1-10000 · Single-Family Residence
- Assessor Use
- Single (0101)
Solar
4,446 hrs/yr
Excellent
Weather & Climate
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Taxes
- Tax Status
- Current
- Yearly Tax Bill
- $6,500
From the LA County Treasurer and Tax Collector's rolls, checked Oct 19, 2026.
Tax Assessment History
| Year | Land | Improvement | Total |
|---|---|---|---|
| 2025 | $485,367 | $0 | $485,367 |
| 2024 | $732,077 | $313,811 | $1,045,888 |
| 2023 | $717,723 | $307,658 | $1,025,381 |
| 2022 | $703,650 | $301,626 | $1,005,276 |
| 2021 | $689,853 | $295,712 | $985,565 |
| 2020 | $682,780 | $292,680 | $975,460 |
| 2019 | $669,393 | $286,942 | $956,335 |
| 2018 | $656,268 | $281,316 | $937,584 |
| 2017 | $211,885 | $251,751 | $463,636 |
| 2016 | $207,731 | $246,815 | $454,546 |
Owner
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Official record: county assessor