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3518 Hollyslope Rd, Altadena
APN 5831-016-012 · map page 5831-016
A 40,980 sq ft residential lot with no building on the tax roll at 3518 Hollyslope Rd in Altadena, Los Angeles County (APN 5831-016-012). 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 $769,467, with a yearly tax bill of $9,417. 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
- 5831-016-012
- Area
- Altadena, Los Angeles County
- Zoning
- R-1-20000 · 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
- $9,417
From the LA County Treasurer and Tax Collector's rolls, checked Oct 19, 2026.
Tax Assessment History
| Year | Land | Improvement | Total |
|---|---|---|---|
| 2025 | $754,380 | $0 | $754,380 |
| 2024 | $1,137,828 | $409,615 | $1,547,443 |
| 2023 | $1,115,518 | $401,584 | $1,517,102 |
| 2022 | $1,093,646 | $393,710 | $1,487,356 |
| 2021 | $1,072,202 | $385,991 | $1,458,193 |
| 2020 | $1,061,208 | $382,034 | $1,443,242 |
| 2019 | $1,040,400 | $374,544 | $1,414,944 |
| 2018 | $1,020,000 | $367,200 | $1,387,200 |
| 2017 | $1,000,000 | $360,000 | $1,360,000 |
| 2016 | $424,555 | $232,992 | $657,547 |
Owner
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Full parcel report · $29
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Official record: county assessor