10003 Mattock Ave, Downey, CA 90240 Property Records

Los Angeles County property record for 10003 Mattock Ave, Downey, CA 90240

Property Summary

Property Type	Single Family Home
Details	3 bd · 3 ba · 2,505 sqft · built 1965
Lot Size	0.235 acres (10,222 sqft)
Owner	Individual Name on Record
Last Sale	$150,000 (Mar 1996)
Tax Bill	$5,214 (2025)
Deeds & Mortgages	Jun 2023 Transfer
Flood Zone	Zone X (reduced by levee)
APN	`6391-015-018`

Property Details

APN / Parcel Number

Primary APN	`6391-015-018`

Interior

Bedrooms	3 Beds
Full Baths	3 Baths
Total Rooms	12 Rooms
Stories	1 Story
Building Area	2,505 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1965
Effective Year Built	Effective 1965
Architectural Style	Contemporary
Exterior Material	Stucco
Construction Type	Wood
Roof Type	Gable
Roof Material	Wood Shingle
Lot Area	10,222 sqft (0.235 acres)
Lot Dimensions	135 ft deep x 76 ft wide

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	10003 MATTOCK AVE
City	DOWNEY
State	CA
Zip	90240-3528
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	DOR110
Legal Description	TRACT # 18006 LOT 37
Legal Subdivision	18006
Legal Tract	18006
Legal Block	2
Legal Lot Number	37
Jurisdiction	LOS ANGELES CA
Township / Civil Division	DOWNEY-NORWALK
Census Block Group	2
Census Block	2010
Census Tract	550502

Owner

Source: Los Angeles County records, as of October 2, 2026

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

Owner of Record	Individual Name on Record
Mailing Address	10003 MATTOCK AVE, DOWNEY, CA 90240-3528
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Mar 5, 1996 · Amount on Record
Deed Sale	Mar 5, 1996 · Amount on Record
Deed Document Number	1996347908
Last Transfer Date	Feb 20, 2023
Transfer Doc	0000123932
Record Updated	Oct 29, 2026

June 2023: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	LOS ANGELES CA
Recording Date	Jun 1, 2023
Property Address	10003 MATTOCK AVE, DOWNEY, CA 90240-3528
Document Number	0000357908
Map Reference	MB 445 PG 1&2
Instrument Date	May 16, 2023
Instrument	23-0357908
Transaction Type	Transfer
Record Updated	Jun 9, 2023

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	11000 WOODRUFF AVE APT 17, 17, DOWNEY, CA 90241-3915

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		$396,178 (+2%) Land $212,666 Building $183,512
2025	$5,214.00 (-68.93%) Homeowner's exemption	$388,411 (-71.65%) Land $208,497 Building $179,914
2023	$16,781.00 (+583.82%)	$1,370,000 Land $1,000,000 Building $370,000
2022	$2,454.00

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 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X reduced by levee · depends on levee performance
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	3 in force

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; 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