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2509 Marengo Ave, Altadena
APN 5835-032-032 · map page 5835-032
A 37,555 sq ft residential lot with no building on the tax roll at 2509 Marengo Ave in Altadena, Los Angeles County (APN 5835-032-032). 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 $116,488, with a yearly tax bill of $2,323. 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
- 5835-032-032
- 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
- $2,323
From the LA County Treasurer and Tax Collector's rolls, checked Oct 19, 2026.
Tax Assessment History
| Year | Land | Improvement | Total |
|---|---|---|---|
| 2025 | $114,204 | $0 | $114,204 |
| 2024 | $172,253 | $277,447 | $449,700 |
| 2023 | $168,876 | $272,007 | $440,883 |
| 2022 | $165,565 | $266,674 | $432,239 |
| 2021 | $162,319 | $261,446 | $423,765 |
| 2020 | $160,655 | $258,766 | $419,421 |
| 2019 | $157,505 | $253,693 | $411,198 |
| 2018 | $154,417 | $248,719 | $403,136 |
| 2017 | $151,390 | $243,843 | $395,233 |
| 2016 | $148,422 | $239,062 | $387,484 |
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