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3636 Monterosa Dr, Altadena
APN 5843-004-017 · map page 5843-004
A 12,374 sq ft residential lot with no building on the tax roll at 3636 Monterosa Dr in Altadena, Los Angeles County (APN 5843-004-017). 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-1-10000 (single-family residence) by Los Angeles County. It is assessed at $169,374, with a yearly tax bill of $1,381. 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
- 5843-004-017
- Area
- Altadena, Los Angeles County
- Zoning
- R-1-10000 · 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
- $1,381
From the LA County Treasurer and Tax Collector's rolls, checked Oct 19, 2026.
Tax Assessment History
| Year | Land | Improvement | Total |
|---|---|---|---|
| 2025 | $166,053 | $0 | $166,053 |
| 2024 | $250,457 | $34,426 | $284,883 |
| 2023 | $245,547 | $33,751 | $279,298 |
| 2022 | $240,733 | $33,090 | $273,823 |
| 2021 | $236,013 | $32,442 | $268,455 |
| 2020 | $233,593 | $32,110 | $265,703 |
| 2019 | $229,013 | $31,481 | $260,494 |
| 2018 | $224,523 | $30,864 | $255,387 |
| 2017 | $220,121 | $30,259 | $250,380 |
| 2016 | $215,805 | $29,666 | $245,471 |
Owner
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Full parcel report · $29
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Official record: county assessor