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3583 Monterosa Dr, Altadena
APN 5843-003-007 · map page 5843-003
A 16,594 sq ft residential lot with no building on the tax roll at 3583 Monterosa Dr in Altadena, Los Angeles County (APN 5843-003-007). 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 $51,548, with a yearly tax bill of $1,451. 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
- 5843-003-007
- 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
- $1,451
From the LA County Treasurer and Tax Collector's rolls, checked Oct 19, 2026.
Tax Assessment History
| Year | Land | Improvement | Total |
|---|---|---|---|
| 2025 | $50,538 | $0 | $50,538 |
| 2024 | $76,252 | $85,014 | $161,266 |
| 2023 | $74,757 | $83,348 | $158,105 |
| 2022 | $73,292 | $81,714 | $155,006 |
| 2021 | $71,855 | $80,112 | $151,967 |
| 2020 | $71,119 | $79,291 | $150,410 |
| 2019 | $69,725 | $77,737 | $147,462 |
| 2018 | $68,358 | $76,213 | $144,571 |
| 2017 | $67,018 | $74,719 | $141,737 |
| 2016 | $65,704 | $73,254 | $138,958 |
Owner
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Full parcel report · $29
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Official record: county assessor