126 Williamson Ct, Martinez, CA 94553 Property Records

Contra Costa County property record for 126 Williamson Ct, Martinez, CA 94553

Property Summary

Property Type	Single Family Home
Details	5 bd · 3.5 ba · 2,271 sqft · built 1996
Lot Size	0.184 acres (8,000 sqft)
Owner	Company Name on Record
Last Sale	$465,000 (Apr 2008)
Tax Bill	$10,151 (2025)
Deeds & Mortgages	Jul 2021 Mortgage Jul 2021 Transfer + 2 more
Flood Zone	Zone X (minimal risk)
APN	`161-291-028-9`

Property Details

APN / Parcel Number

Primary APN	`161-291-028-9`
Alternative APN	`161-291-028`

Interior

Bedrooms	5 Beds
Full Baths	3.5 Baths
Half Baths	1 Half Bath
Total Rooms	13 Rooms
Stories	2 Stories
Building Area	2,271 sqft Living Area
1st Floor Area	1,176 sqft
2nd Floor Area	1,095 sqft

Exterior

Year Built	Built 1996
Effective Year Built	Effective 2005
Lot Area	8,000 sqft (0.184 acres)
Garage Type	Attached
Garage Area	432 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	126 WILLIAMSON CT
City	MARTINEZ
State	CA
Zip	94553-4194
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	T7586 POR LOTS 6 & 7
Legal Subdivision	CREEKSIDE COLLECTION/SHADOWBRO
Legal Tract	7586
Legal Lot Number	6,7
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	3
Census Block	3005
Census Tract	320004

Owner

Source: Contra Costa County records, as of July 14, 2026

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

Owner of Record	Company Name on Record
Mailing Address	126 WILLIAMSON CT, MARTINEZ, CA 94553-4194
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Jul 29, 2021	Intrafamily Transfer, Transfer · Conventional Mortgage QUICKEN LOANS LLC
Jul 29, 2021	Intrafamily Transfer, Transfer OLD REPUBLIC TITLE COMPANY
May 10, 2021	Intrafamily Transfer, Transfer
Oct 16, 2019	Intrafamily Transfer, Transfer · Conventional Mortgage ONE AMERICAN BANK

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Apr 11, 2008 · Amount on Record
Deed Sale	Apr 11, 2008 · Amount on Record
Prior Sale	Aug 31, 2005 · Amount on Record
Deed Document Number	200878047
Last Transfer Date	Jul 26, 2021
Transfer Doc	0000212405
Record Updated	Oct 29, 2026

July 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Jul 29, 2021
Property Address	126 WILLIAMSON CT, MARTINEZ, CA 94553-4194
Document Number	0000212405
Map Reference	MB 359 PG 34
Instrument Date	Jul 26, 2021
Instrument	2021-212405
Transaction Type	Transfer
Record Updated	Nov 3, 2022
Title Company	OLD REPUBLIC TITLE, OLD REPUBLIC 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	Community Property
Address	126 WILLIAMSON CT, MARTINEZ, CA 94553-4194

Mortgage

Document Number	0000212406
Date	Jul 29, 2021
Instrument	2021-212406

Lender

Name	QUICKEN LOANS LLC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Aug 1, 2051

July 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Jul 29, 2021
Property Address	126 WILLIAMSON CT, MARTINEZ, CA 94553-4194
Document Number	0000212407
Map Reference	MB 359 PG 34
Instrument Date	Jul 26, 2021
Instrument	2021-212407
Transaction Type	Transfer
Record Updated	Jun 7, 2023
Title Company	OLD REPUBLIC 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 Trust
Address	126 WILLIAMSON CT, MARTINEZ, CA 94553-4194

May 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	May 10, 2021
Property Address	126 WILLIAMSON CT, MARTINEZ, CA 94553-4194
Document Number	0000139074
Map Reference	MB 359 PG 34
Instrument Date	May 3, 2021
Instrument	2021-139074
Transaction Type	Transfer
Record Updated	Jun 7, 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
Relationship	Family Trust
Address	126 WILLIAMSON CT, MARTINEZ, CA 94553-4194

October 2019: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Oct 16, 2019
Property Address	126 WILLIAMSON CT, MARTINEZ, CA 94553-4194
Document Number	0000175685
Map Reference	MB 359 PG 34
Instrument Date	Oct 7, 2019
Instrument	2019-175685
Transaction Type	Transfer
Record Updated	Jul 27, 2021
Title Company	FIRST AMERICAN 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	Community Property with Right of Survivorship
Address	126 WILLIAMSON CT, MARTINEZ, CA 94553-4194

Mortgage

Document Number	0000175686
Date	Oct 16, 2019
Instrument	2019-175686

Lender

Name	ONE AMERICAN BANK
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Nov 1, 2049

Tax Assessment & Valuation

Source: Contra Costa County assessment roll, as of July 14, 2026

Property Jurisdictions

Type	Name
State	California
County	Contra Costa County
Municipality	Martinez City
Unified School District	Mount Diablo Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$684,367 (+2%) Land $288,046 Building $396,321
2025	$10,151.00 (+12.74%)	$670,949 (+14.29%) Land $282,399 Building $388,550
2023	$9,004.00 (+12.73%)	$587,054 Land $271,434 Building $315,620
2022	$7,987.00

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

Flood

Source: FEMA National Flood Hazard Layer, effective October 12, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Claims	1 (1979)
Most Recent Claim	Oct 1979 · rainfall accumulation

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	CONTRA COSTA WATER DISTRICT serves 210,500 people · EPA ID CA0710003
Water Source	Surface water
Last State Inspection	Jan 2022
Lead	Under 1 ppb (2026–2028) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
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 454 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Unwired Fixed Wireless	300 / 25
T-Mobile Fixed Wireless	100 / 20

May also be available: Astound Broadband, AT&T, Verizon.

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