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302 W Mariposa St, Altadena

APN 5829-037-004 · map page 5829-037

SingleTax defaultedAssessorGoogle Maps

A 6,312 sq ft residential lot with no building on the tax roll at 302 W Mariposa St in Altadena, Los Angeles County (APN 5829-037-004). It burned in the Eaton Fire (2025). It is not in a CAL FIRE hazard zone and outside the FEMA flood zone (zone X). It is zoned R-1-7500 (single-family residence) by Los Angeles County. It is assessed at $142,436, with a yearly tax bill of $2,007. Property taxes are in default since 2026, with $1,041 owed.

Size

6,098sqft

Assessed

$142,436

Fire Zone

None

Not in a CAL FIRE zone

Flood Zone

X

Outside flood zone

Taxes

Defaulted

$2,007/yr bill

Flood

Zone X — AREA OF MINIMAL FLOOD HAZARD

Outside flood zone

Low Risk

Fire

CAL FIRE hazard severity zone

None

Low Risk

Past Fires

1 mapped fire since 2025

Eaton Fire, 2025

High Risk

No mapped hazards

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
5829-037-004
Area
Altadena, Los Angeles County
Zoning
R-1-7500 · Single-Family Residence
Assessor Use
Single (0100)

4,446 hrs/yr

Excellent

Summer14.4h
Winter9.9h

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Tax Status
Tax defaulted
Yearly Tax Bill
$2,007
Year Defaulted
2026
Owed to Redeem
$1,041

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

↓ 40% decrease2016 → 2025
$232K'16$236K'17$241K'18$246K'19$251K'20$253K'21$258K'22$263K'23$269K'24$140K'25
YearLandImprovementTotal
2025$139,644$0$139,644
2024$210,625$58,058$268,683
2023$206,496$56,920$263,416
2022$202,448$55,804$258,252
2021$198,479$54,710$253,189
2020$196,444$54,150$250,594
2019$192,593$53,089$245,682
2018$188,817$52,049$240,866
2017$185,115$51,029$236,144
2016$181,486$50,029$231,515

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 15 lots on assessor map book 5829, page 037 →