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403 W Loma Alta Dr, Altadena

APN 5830-016-045 · map page 5830-016

SingleTax defaultedAssessorGoogle Maps

A 11,255 sq ft residential lot with no building on the tax roll at 403 W Loma Alta Dr in Altadena, Los Angeles County (APN 5830-016-045). It burned in the Eaton Fire (2025). 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 $414,497, with a yearly tax bill of $480. Property taxes are in default since 2026.

Size

11,326sqft

Assessed

$414,497

Fire Zone

Very High

CAL FIRE

Flood Zone

X

Outside flood zone

Taxes

Defaulted

$480/yr bill

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

1 mapped fire since 2025

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
5830-016-045
Area
Altadena, Los Angeles County
Zoning
R-1-10000 · Single-Family Residence
Assessor Use
Single (01D6)

4,446 hrs/yr

Excellent

Summer14.4h
Winter9.9h

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Tax Status
Tax defaulted
Yearly Tax Bill
$480
Year Defaulted
2026

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

↑ 31% increase2016 → 2025
$751K'16$766K'17$781K'18$797K'19$813K'20$821K'21$837K'22$854K'23$871K'24$986K'25
YearLandImprovementTotal
2025$625,184$361,153$986,337
2024$612,926$258,387$871,313
2023$600,908$253,321$854,229
2022$589,126$248,354$837,480
2021$577,575$243,485$821,060
2020$571,653$240,989$812,642
2019$560,445$236,264$796,709
2018$549,456$231,632$781,088
2017$538,683$227,091$765,774
2016$528,121$222,639$750,760

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 21 lots on assessor map book 5830, page 016 →