321 Willowcreek Ln, Martinez, CA 94553 Property Records

Contra Costa County property record for 321 Willowcreek Ln, Martinez, CA 94553

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.5 ba · 1,775 sqft · built 1980
Lot Size	0.238 acres (10,368 sqft)
Owner	2 Trust Names on File
Last Sale	$705,000 (Oct 2018)
Tax Bill	$10,442 (2025)
Deeds & Mortgages	Apr 2024 Transfer Oct 2020 Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`377-231-004-5`

Property Details

APN / Parcel Number

Primary APN	`377-231-004-5`
Alternative APN	`377-231-004`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	9 Rooms
Stories	2 Stories
Building Area	1,775 sqft Living Area
1st Floor Area	868 sqft
2nd Floor Area	907 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1980
Effective Year Built	Effective 1984
Architectural Style	Cluster
Exterior Material	Wood
Roof Material	Wood Shingle
Lot Area	10,368 sqft (0.238 acres)
Garage Type	Attached
Garage Area	429 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C
Heating Fuel	Gas
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	321 WILLOWCREEK LN
City	MARTINEZ
State	CA
Zip	94553-4136
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	T05057 L0020 B
Legal Subdivision	SUBDIVISION 5057
Legal Tract	05057
Legal Lot Number	20
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	1
Census Block	1013
Census Tract	320003

Owner

321 Willowcreek Ln is held in a trust since October 2018.

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

Owner of Record	2 Trust Names on File
Mailing Address	321 WILLOWCREEK LN, MARTINEZ, CA 94553-4136
Owner Type	Company
Vesting	Trust

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

Deeds, Mortgages & Sale History

Date	Document
Apr 18, 2024	Intrafamily Transfer, Transfer
Oct 9, 2020	Deed of Trust, Mortgage · Conventional Mortgage QUICKEN LOANS LLC
Sep 16, 2019	Quit Claim Deed, Transfer · Conventional Mortgage QUICKEN LNS
Oct 31, 2018	Grant Deed, Transfer · Conventional Mortgage QUICKEN LNS

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Oct 31, 2018 · Amount on File
Deed Sale	Oct 31, 2018 · Amount on File
Prior Sale	Apr 30, 2015 · Amount on File
Deed Document Number	2018177059
Prior Transfer Date	Oct 1, 1997
Prior Transfer Doc	0000183298
Record Updated	Oct 29, 2026

April 2024: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Apr 18, 2024
Property Address	321 WILLOWCREEK LN, MARTINEZ, CA 94553-4136
Document Number	0000036148
Map Reference	MB 224 PG 32
Instrument Date	Apr 15, 2024
Instrument	2024-036148
Transaction Type	Transfer
Record Updated	Apr 30, 2024

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 Living Trust
Address	321 WILLOWCREEK LN, MARTINEZ, CA 94553-4136

October 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	321 WILLOWCREEK LN, MARTINEZ, CA 94553-4136
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	STEWART TITLE OF CA INC

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	321 WILLOWCREEK LN, MARTINEZ, CA 94553-4136

Mortgage

Document Number	0000232915
Date	Oct 9, 2020
Instrument	2020-232915

Lender

Name	QUICKEN LOANS LLC
Type	Mortgage Company
Address	DETROIT, MI 48226

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Nov 1, 2050

September 2019: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Sep 16, 2019
Property Address	321 WILLOWCREEK LN, MARTINEZ, CA 94553-4136
Document Number	0000152511
Instrument Date	Sep 10, 2019
Instrument	152511
Transaction Type	Transfer
Record Updated	Sep 25, 2019
Title Company	STEWART TITLE, STEWART TITLE/CA

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	321 WILLOWCREEK LN MARTINEZ CA 945534136, MARTINEZ, CA 94553-4136

Mortgage

Document Number	152512
Date	Sep 16, 2019
Instrument	152512

Lender

Name	QUICKEN LNS
Type	Funding / Finance Company
Address	DETROIT, MI 48226-1906

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	Sep 15, 2049

October 2018: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Oct 31, 2018
Property Address	321 WILLOWCREEK LN, MARTINEZ, CA 94553-4136
Document Number	0000177059
Instrument Date	Oct 9, 2018
Instrument	177059
Transaction Type	Transfer
Record Updated	Nov 12, 2018
Title Company	CHICAGO TITLE COMPANY, CHICAGO TITLE CO

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$775.50
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	321 WILLOWCREEK LN MARTINEZ CA 945534136, MARTINEZ, CA 94553-4136

Mortgage

Document Number	177060
Date	Oct 31, 2018
Instrument	177060

Lender

Name	QUICKEN LNS
Type	Funding / Finance Company
Address	DETROIT, MI 48226-1906

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	Oct 30, 2048

Tax Assessment & Valuation

The 2025 property tax bill for 321 Willowcreek Ln was $10,442.

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	Martinez Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$802,165 (+2%) Land $409,616 Building $392,549
2025	$10,442.00	$786,437 Land $401,585 Building $384,852
2023	$9,768.00 (+2.36%)	$755,900 Land $385,992 Building $369,908
2022	$9,543.00

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

Flood

FEMA maps place 321 Willowcreek Ln in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1986.

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 Policies	2 in force
Nearby Flood Claims	1 (1986)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Feb 1986 · Severe Storms & Flooding

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 321 Willowcreek Ln 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	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 403 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
Verizon Fixed Wireless	300 / 20
AT&T DSL	100 / 20

May also be available: Astound Broadband.

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