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521 W Loma Alta Dr, Altadena

APN 5830-015-024 · map page 5830-015

SingleCurrentAssessorGoogle Maps

A 1.05-acre residential lot with no building on the tax roll at 521 W Loma Alta Dr in Altadena, Los Angeles County (APN 5830-015-024). 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 D). It is zoned A-1 (light agricultural) by Los Angeles County. It is assessed at $743,886 ($708,463 an acre), with a yearly tax bill of $9,307. Property taxes are not in default.

Size

1.05ac

45,807 sqft

Assessed

$743,886

$708,463/acre

Fire Zone

Very High

CAL FIRE

Flood Zone

D

Outside flood zone

Taxes

Current

$9,307/yr bill

Flood

Zone D

Outside flood zone

Moderate Risk

Fire

CAL FIRE hazard severity zone

Very High

High Risk

Past Fires

3 mapped fires since 1900

Eaton Fire, 2025

High Risk

Check before buying

From FEMA flood maps and CAL FIRE hazard zones. Maps can lag; confirm with the county before you buy. What the zones mean: flood, fire.

APN
5830-015-024
Area
Altadena, Los Angeles County
Zoning
A-1 · Light Agricultural
Assessor Use
Single (0102)

4,446 hrs/yr

Excellent

Summer14.4h
Winter9.9h

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Tax Status
Current
Yearly Tax Bill
$9,307

From the LA County Treasurer and Tax Collector's rolls, checked Oct 19, 2026.

↑ 603% increase2016 → 2025
'16'17'18'19'20'21'22'23$1.4M'24$729K'25
YearLandImprovementTotal
2025$729,300$0$729,300
2024$1,100,000$340,000$1,440,000
2023$48,603$69,478$118,081
2022$47,650$68,116$115,766
2021$46,716$66,781$113,497
2020$46,237$66,097$112,334
2019$45,331$64,801$110,132
2018$44,443$63,531$107,974
2017$43,572$62,286$105,858
2016$42,718$61,065$103,783

Who owns this land?

Talk to a local land agent

An agent who knows land in this area can check zoning, access, water and what nearby lots sold for, and make an offer for you.

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.

Source: la-county-assessorUpdated: 10/19/2026

Official record: county assessor

All 19 lots on assessor map book 5830, page 015 →