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3797 El Sereno Ave, Altadena
APN 5831-009-002 · map page 5831-009
A 10,849 sq ft residential lot with no building on the tax roll at 3797 El Sereno Ave in Altadena, Los Angeles County (APN 5831-009-002). It burned in the Eaton Fire (2025), and 2 earlier mapped fires reached it. It is in a Very High 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 $120,904, with a yearly tax bill of $2,080. 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
Very High
High Risk
Past Fires
3 mapped fires since 1900
Eaton Fire, 2025
High Risk
Property Details
- APN
- 5831-009-002
- Area
- Altadena, Los Angeles County
- Zoning
- R-1-7500 · 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
- $2,080
From the LA County Treasurer and Tax Collector's rolls, checked Oct 19, 2026.
Tax Assessment History
| Year | Land | Improvement | Total |
|---|---|---|---|
| 2025 | $118,534 | $0 | $118,534 |
| 2024 | $178,784 | $99,464 | $278,248 |
| 2023 | $175,279 | $97,514 | $272,793 |
| 2022 | $171,843 | $95,602 | $267,445 |
| 2021 | $168,474 | $93,728 | $262,202 |
| 2020 | $166,747 | $92,767 | $259,514 |
| 2019 | $163,478 | $90,949 | $254,427 |
| 2018 | $160,273 | $89,166 | $249,439 |
| 2017 | $157,131 | $87,418 | $244,549 |
| 2016 | $154,050 | $85,704 | $239,754 |
Owner
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Full parcel report · $29
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Official record: county assessor