321 Lake Ct, Martinez, CA 94553 Property Records

Contra Costa County property record for 321 Lake Ct, Martinez, CA 94553

Property Summary

Property Type	Townhouse
Details	3 bd · 2.5 ba · 1,686 sqft · built 1983
Lot Size	0.114 acres (4,980 sqft)
Owner	Individual Name on Record
Tax Bill	$4,911 (2025)
Deeds & Mortgages	Aug 2023 Line of Credit Jan 2018 Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`155-500-043-7`

Property Details

APN / Parcel Number

Primary APN	`155-500-043-7`
Alternative APN	`155-500-043`

Interior

Bedrooms	3 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	9 Rooms
Stories	2 Stories
Building Area	1,686 sqft Living Area
Gross Area	2,127 sqft
1st Floor Area	825 sqft
2nd Floor Area	861 sqft

Exterior

Year Built	Built 1983
Effective Year Built	Effective 1985
Architectural Style	Townhouse
Lot Area	4,980 sqft (0.114 acres)
Garage Type	Attached
Garage Area	441 sqft
Parking Spaces	2 Parking Spaces

Location & Zoning

Street Address	321 LAKE CT
City	MARTINEZ
State	CA
Zip	94553-5477
Property Category	Residential
Property Type	Residential > Condominium / Townhouse > Townhouse
Local Zoning Code	R75
Legal Description	T06313 L0043 B
Legal Subdivision	SUBDIVISION 6313
Legal Tract	06313
Legal Lot Number	43
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	4
Census Block	4000
Census Tract	321102

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	Individual Name on Record
Mailing Address	321 LAKE CT, MARTINEZ, CA 94553-5477
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Aug 4, 2023	Deed of Trust, Mortgage · Line of Credit US BANK NA
Jan 5, 2018	Deed of Trust, Mortgage · ARM BUSEY BANK
Aug 25, 2020	Deed of Trust, Mortgage · Conventional Mortgage OWNING CORPORATION
Jan 7, 2022	Intrafamily Transfer, Transfer

Assessor's Deed Record

Deed Names	Name on Deed
Last Transfer Date	Jan 7, 2022
Transfer Doc	0000003819
Record Updated	Sep 20, 2026

August 2023: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	321 LAKE CT, MARTINEZ, CA 94553-5477
Transaction Type	Mortgage
Record Updated	Aug 15, 2023
Title Company	RADIAN SETTLEMENT SERVICES INC, RADIAN SETTLEMENT SERVICES

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	321 LAKE CT, MARTINEZ, CA 94553-5477

Mortgage

Document Number	0000074408
Date	Aug 4, 2023
Instrument	2023-074408

Lender

Name	US BANK NA
Type	Bank
Address	CINCINNATI, OH 45202

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	359 Months
Due	Jul 5, 2053

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

January 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	321 LAKE CT, MARTINEZ, CA 94553-5477
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	LINEAR TITLE COMPANY OF CALI

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000002006
Date	Jan 5, 2018
Instrument	2018-002006

Lender

Name	BUSEY BANK
Type	Bank
Address	CHAMPAIGN, IL 61820

Agreement

Type	ARM
Amount	Amount Recorded
Term	360 Months
Due	Jan 1, 2048

Interest

Rate Type	Adjustable Rate
Type Change Date	Jan 1, 2025
Change Frequency	Annually
Min Rate At Change	2.25%
Max Rate At Change	8.5%
Index	1-Year LIBOR
Max Rate	8.5%

August 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	321 LAKE CT, MARTINEZ, CA 94553-5477
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	ORANGE COAST TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000180401
Date	Aug 25, 2020
Instrument	2020-180401

Lender

Name	OWNING CORPORATION
Type	Non-Lending Institution
Address	ORANGE, CA 92868

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Sep 1, 2050

January 2022: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Jan 7, 2022
Property Address	321 LAKE CT, MARTINEZ, CA 94553-5477
Document Number	0000003819
Map Reference	MB 270 PG 20
Instrument Date	Jan 7, 2022
Instrument	2022-003819
Transaction Type	Transfer
Record Updated	Nov 3, 2022

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	321 LAKE CT, MARTINEZ, CA 94553-5477

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		$367,782 (+2%) Land $159,134 Building $208,648
2025	$4,911.00 (+4.36%) Homeowner's exemption	$360,571 (+4.04%) Land $156,014 Building $204,557
2023	$4,706.00 (+0.88%) Homeowner's exemption	$346,571 Land $149,956 Building $196,615
2022	$4,665.00

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 Policies	2 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	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 445 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
AT&T DSL	100 / 20

May also be available: Verizon.

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