9803 Mattock Ave, Downey, CA 90240 Property Records

Los Angeles County property record for 9803 Mattock Ave, Downey, CA 90240

Property Summary

Property Type	Single Family Home
Details	4 bd · 4 ba · 3,657 sqft · built 1966
Lot Size	0.235 acres (10,225 sqft)
Owner	2 Trust Names on File
Last Sale	$810,000 (Jan 2005)
Tax Bill	$14,148 (2025)
Deeds & Mortgages	Feb 2021 Transfer Feb 2021 Mortgage
Flood Zone	Zone X (reduced by levee)
APN	`6391-022-015`

Property Details

APN / Parcel Number

Primary APN	`6391-022-015`

Interior

Bedrooms	4 Beds
Full Baths	4 Baths
Total Rooms	15 Rooms
Stories	2 Stories
Building Area	3,657 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1966
Effective Year Built	Effective 1971
Architectural Style	Conventional
Exterior Material	Stucco
Construction Type	Wood
Roof Type	Gable
Roof Material	Wood Shingle
Lot Area	10,225 sqft (0.235 acres)
Lot Dimensions	110 ft deep x 91 ft wide
Garage Type	Attached

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central
Water Source	Commercial

Location & Zoning

Street Address	9803 MATTOCK AVE
City	DOWNEY
State	CA
Zip	90240-3524
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	DOR110
Legal Description	TRACT NO 25476 LOT 12
Legal Subdivision	25476
Legal Tract	25476
Legal Block	2
Legal Lot Number	12
Jurisdiction	LOS ANGELES CA
Township / Civil Division	DOWNEY-NORWALK
Census Block Group	2
Census Block	2001
Census Tract	550502

Owner

9803 Mattock Ave is owner-occupied and held in a trust since February 2021.

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

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Owner of Record	2 Trust Names on File
Mailing Address	9803 MATTOCK AVE, DOWNEY, CA 90240-3524
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Family Trust

Deeds, Mortgages & Sale History

Date	Document
Feb 8, 2021	Intrafamily Transfer, Transfer WFG NATIONAL TITLE COMPANY
Feb 8, 2021	Intrafamily Transfer, Transfer · Conventional Mortgage QUICKEN LOANS LLC

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jan 25, 2005 · Amount on File
Deed Sale	Jan 25, 2005 · Amount on File
Prior Sale	Dec 22, 1994 · Amount on File
Deed Document Number	2005174982
Last Transfer Date	Feb 2, 2021
Transfer Doc	0000217925
Record Updated	Oct 29, 2026

February 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	LOS ANGELES CA
Recording Date	Feb 8, 2021
Property Address	9803 MATTOCK AVE, DOWNEY, CA 90240-3524
Document Number	0000217927
Map Reference	MB 755 PG 45&46
Instrument Date	Feb 2, 2021
Instrument	21-0217927
Transaction Type	Transfer
Record Updated	Jun 7, 2023
Title Company	WFG NATIONAL TITLE COMPANY

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
Relationship	Family Revocable Trust
Address	9803 MATTOCK AVE, DOWNEY, CA 90240-3524

February 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	LOS ANGELES CA
Recording Date	Feb 8, 2021
Property Address	9803 MATTOCK AVE, DOWNEY, CA 90240-3524
Document Number	0000217925
Map Reference	MB 755 PG 45&46
Instrument Date	Feb 2, 2021
Instrument	21-0217925
Transaction Type	Transfer
Record Updated	Sep 22, 2021
Title Company	WFT NATIONAL TITLE, WFG NATIONAL TITLE

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
Relationship	Joint Tenants
Address	9803 MATTOCK AVE, DOWNEY, CA 90240-3524

Mortgage

Document Number	0000217926
Date	Feb 8, 2021
Instrument	21-0217926

Lender

Name	QUICKEN LOANS LLC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Mar 1, 2051

Tax Assessment & Valuation

The 2025 property tax bill for 9803 Mattock Ave was $14,148 with a homeowner's exemption.

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		$1,151,636 (+2%) Land $696,670 Building $454,966
2025	$14,148.00 Homeowner's exemption	$1,129,056 Land $683,010 Building $446,046
2023	$13,425.00 (+5.34%) Homeowner's exemption	$1,085,215 Land $656,489 Building $428,726
2022	$12,745.00

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

Flood

FEMA maps place 9803 Mattock Ave in Zone X, where a levee reduces flood risk.

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

The area around 9803 Mattock Ave has no burnable land within ember reach, so its wildfire risk is not rated.

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 680 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
T-Mobile Fixed Wireless	100 / 20

May also be available: AT&T.

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