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3497 Hollyslope Rd, Altadena
APN 5831-015-052 · map page 5831-015
A 42,545 sq ft residential lot with no building on the tax roll at 3497 Hollyslope Rd in Altadena, Los Angeles County (APN 5831-015-052). 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-1-20000 (single-family residence) by Los Angeles County. It is assessed at $103,009, with a yearly tax bill of $1,868. 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
- 5831-015-052
- Area
- Altadena, Los Angeles County
- Zoning
- R-1-20000 · Single-Family Residence
- Assessor Use
- Two Units (0200)
Solar
4,446 hrs/yr
Excellent
Weather & Climate
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Taxes
- Tax Status
- Current
- Yearly Tax Bill
- $1,868
From the LA County Treasurer and Tax Collector's rolls, checked Oct 19, 2026.
Tax Assessment History
| Year | Land | Improvement | Total |
|---|---|---|---|
| 2025 | $155,367 | $221,672 | $377,039 |
| 2024 | $152,321 | $217,326 | $369,647 |
| 2023 | $149,335 | $213,065 | $362,400 |
| 2022 | $146,407 | $208,888 | $355,295 |
| 2021 | $143,537 | $204,793 | $348,330 |
| 2020 | $142,066 | $202,694 | $344,760 |
| 2019 | $139,281 | $198,720 | $338,001 |
| 2018 | $136,550 | $194,824 | $331,374 |
| 2017 | $133,873 | $191,004 | $324,877 |
| 2016 | $131,249 | $187,259 | $318,508 |
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