10348 Mattock Ave, Downey, CA 90241 Property Records

Los Angeles County property record for 10348 Mattock Ave, Downey, CA 90241

Property Summary

Property Type	Single Family Home
Details	2 bd · 3 ba · 1,854 sqft · built 1953
Lot Size	0.174 acres (7,591 sqft)
Owner	2 Company Names on Record
Tax Bill	$3,970 (2025)
Flood Zone	Zone X (reduced by levee)
APN	`6287-004-029`

Property Details

APN / Parcel Number

Primary APN	`6287-004-029`

Interior

Bedrooms	2 Beds
Full Baths	3 Baths
Total Rooms	8 Rooms
Stories	1 Story
Building Area	1,854 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1953
Effective Year Built	Effective 1963
Architectural Style	Conventional
Exterior Material	Stucco
Construction Type	Wood
Roof Type	Gable
Roof Material	Wood Shingle
Lot Area	7,591 sqft (0.174 acres)
Lot Dimensions	115 ft deep x 66 ft wide

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	10348 MATTOCK AVE
City	DOWNEY
State	CA
Zip	90241-3005
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	DOR17500*
Legal Description	TRACT # 17563 LOT 93
Legal Subdivision	17563
Legal Tract	17563
Legal Block	2
Legal Lot Number	93
Jurisdiction	LOS ANGELES CA
Township / Civil Division	DOWNEY-NORWALK
Census Block Group	2
Census Block	2001
Census Tract	551001

Owner

Source: Los Angeles County records, as of August 25, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	2 Company Names on Record
Mailing Address	10348 MATTOCK AVE, DOWNEY, CA 90241-3005
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Family Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Transfer Date	Jul 6, 2006
Transfer Doc	0001514943
Record Updated	Oct 29, 2026

Tax Assessment & Valuation

Source: Los Angeles County assessment roll, as of August 25, 2026

Property Jurisdictions

Type	Name
State	California
County	Los Angeles County
Municipality	Downey City
Unified School District	Downey Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$298,065 (+2%) Land $141,766 Building $156,299
2025	$3,970.00 (+5.28%) Homeowner's exemption	$292,222 (+4.04%) Land $138,987 Building $153,235
2023	$3,771.00 (+5.04%) Homeowner's exemption	$280,877 Land $133,591 Building $147,286
2022	$3,590.00

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

Source: FEMA National Flood Hazard Layer, effective September 30, 2026

FEMA Flood Zone	Zone X reduced by levee · depends on levee performance
Flood Insurance Requirement	Not required lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Not rated no burnable land within ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water System	DOWNEY - CITY, WATER DEPT. serves 110,556 people · EPA ID CA1910034
Water Source	Groundwater
Lead	Under 1 ppb (2021–2023) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	Coliform assessment Feb 2018
Monitoring and Reporting	None last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 486 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Frontier Fiber	7,000 / 7,000
Spectrum Cable	1,000 / 1,000
Verizon Fixed Wireless	300 / 20
Starlink Satellite	280 / 30
T-Mobile Fixed Wireless	100 / 20
AT&T Fixed Wireless	100 / 20