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10051 Mattock Ave, Downey

APN 6391-015-012

SingleCurrentAssessorGoogle Maps

A 10,277 sq ft residential lot with no building on the tax roll at 10051 Mattock Ave in Downey, Los Angeles County (APN 6391-015-012). It is not in a CAL FIRE hazard zone and outside the FEMA flood zone (zone X). It is assessed at $747,394, with a yearly tax bill of $9,474. Property taxes are not in default.

Size

10,454sqft

Assessed

$747,394

Fire Zone

None

Not in a CAL FIRE zone

Flood Zone

X

Outside flood zone

Taxes

Current

$9,474/yr bill

Flood

Zone X — AREA WITH REDUCED FLOOD RISK DUE TO LEVEE

Outside flood zone

Low Risk

Fire

CAL FIRE hazard severity zone

None

Low Risk

Past Fires

CAL FIRE perimeters since 1878

None mapped

Low 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
6391-015-012
Area
Downey, Los Angeles County
Assessor Use
Single (0101)

4,445 hrs/yr

Excellent

Summer14.4h
Winter9.9h

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Tax Status
Current
Yearly Tax Bill
$9,474

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

↓ 36% decrease2016 → 2025
$1.1M'16$1.0M'17$525K'18$592K'19$670K'20$677K'21$690K'22$704K'23$718K'24$733K'25
YearLandImprovementTotal
2025$732,740$0$732,740
2024$718,373$0$718,373
2023$704,288$0$704,288
2022$690,479$0$690,479
2021$676,941$0$676,941
2020$670,000$0$670,000
2019$591,600$0$591,600
2018$525,000$0$525,000
2017$532,000$507,000$1,039,000
2016$809,992$338,221$1,148,213

Who owns this land?

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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.

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

Official record: county assessor