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3448 Hollyslope Rd, Altadena
APN 5831-016-021 · map page 5831-016
A 20,052 sq ft residential lot with no building on the tax roll at 3448 Hollyslope Rd in Altadena, Los Angeles County (APN 5831-016-021). 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 $226,501, with a yearly tax bill of $3,502. 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
- 5831-016-021
- 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
- $3,502
From the LA County Treasurer and Tax Collector's rolls, checked Oct 19, 2026.
Tax Assessment History
| Year | Land | Improvement | Total |
|---|---|---|---|
| 2025 | $222,060 | $0 | $222,060 |
| 2024 | $334,933 | $185,143 | $520,076 |
| 2023 | $328,366 | $181,513 | $509,879 |
| 2022 | $321,928 | $177,954 | $499,882 |
| 2021 | $315,616 | $174,465 | $490,081 |
| 2020 | $312,380 | $172,677 | $485,057 |
| 2019 | $306,255 | $169,292 | $475,547 |
| 2018 | $300,250 | $165,973 | $466,223 |
| 2017 | $294,363 | $162,719 | $457,082 |
| 2016 | $288,592 | $159,529 | $448,121 |
Owner
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Full parcel report · $29
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Official record: county assessor