2100 Walnut St, Martinez, CA 94553 Property Records

Contra Costa County property record for 2100 Walnut St, Martinez, CA 94553

Property Summary

Property Type	Single Family Home
Details	2 bd · 2 ba · 1,256 sqft · built 1976
Lot Size	0.096 acres (4,200 sqft)
Owner	2 Company Names on Record
Last Sale	$330,000 (Jun 2002)
Tax Bill	$6,608 (2025)
Deeds & Mortgages	Apr 2026 Sale Nov 2021 Mortgage + 3 more
Flood Zone	Zone X (minimal risk)
APN	`375-053-030-9`

Property Details

APN / Parcel Number

Primary APN	`375-053-030-9`
Alternative APN	`375-053-030`

Interior

Bedrooms	2 Beds
Full Baths	2 Baths
Total Rooms	6 Rooms
Stories	1 Story
Building Area	1,256 sqft Living Area
1st Floor Area	1,256 sqft

Exterior

Year Built	Built 1976
Effective Year Built	Effective 1978
Lot Area	4,200 sqft (0.096 acres)
Garage Type	Attached
Garage Area	546 sqft
Parking Spaces	2 Parking Spaces

Location & Zoning

Street Address	2100 WALNUT ST
City	MARTINEZ
State	CA
Zip	94553-2744
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R-6
Legal Description	MARTINEZ LD CO #5 LOT 6 BLK 17
Legal Subdivision	MARTINEZ LAND CO 05
Legal Tract	5
Legal Block	17
Legal Lot Number	6
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	2
Census Block	2015
Census Tract	319002

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	2 Company Names on Record
Mailing Address	2100 WALNUT ST, MARTINEZ, CA 94553-2744
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Revocable Trust

Deeds, Mortgages & Sale History

Date	Document
Apr 6, 2026	Grant Deed, Transfer NONE LISTED ON DOCUMENT
Nov 24, 2021	Deed of Trust, Mortgage · Conventional Mortgage ROCKET MORTGAGE LLC
Apr 21, 2022	Deed of Trust, Mortgage · Line of Credit BANK OF AMERICA NA
Apr 24, 2020	Deed of Trust, Mortgage · Line of Credit BANK OF AMERICA
Feb 29, 2020	Deed of Trust, Mortgage · Conventional Mortgage QUICKEN LNS

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jun 20, 2002 · Amount on Record
Deed Sale	Jun 20, 2002 · Amount on Record
Deed Document Number	2002217452
Last Transfer Date	Jul 16, 2009
Transfer Doc	0000183589
Record Updated	Oct 29, 2026

April 2026: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Apr 6, 2026
Property Address	2100 WALNUT ST, MARTINEZ, CA 94553-2744
Document Number	0000034196
Instrument Date	Mar 31, 2026
Instrument	202634196
Transaction Type	Transfer
Record Updated	Aug 27, 2026
Title Company	NONE LISTED ON DOCUMENT

Transaction

Tax	$0.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	2100 WALNUT ST, MARTINEZ, CA 94553-2744

November 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	2100 WALNUT ST, MARTINEZ, CA 94553-2744
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	AMROCK INC

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	2100 WALNUT ST, BRIONES, CA 94553-2744

Mortgage

Document Number	0000324159
Date	Nov 24, 2021
Instrument	2021-324159

Lender

Name	ROCKET MORTGAGE LLC
Type	Mortgage Company
Address	DETROIT, MI 48226

Agreement

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

April 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	2100 WALNUT ST, MARTINEZ, CA 94553-2744
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	WFG LENDER SERVICES

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	2100 WALNUT ST, MARTINEZ, CA 94553-2744

Mortgage

Document Number	0000069487
Date	Apr 21, 2022
Instrument	2022-069487

Lender

Name	BANK OF AMERICA NA
Type	Bank
Address	TAMPA, FL 33634

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

April 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	2100 WALNUT ST, MARTINEZ, CA 94553-2744
Document Number	0000084366
Instrument Date	Apr 24, 2020
Transaction Type	Mortgage
Record Updated	May 12, 2020
Title Company	TITLE365 - OMAHA

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	2100 WALNUT ST MARTINEZ CA 945532744, MARTINEZ, CA 94553-2744

Mortgage

Document Number	0000084366
Date	May 5, 2020
Instrument	84366

Lender

Name	BANK OF AMERICA
Type	Bank
Address	TAMPA, FL 33634

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate

February 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	2100 WALNUT ST, MARTINEZ, CA 94553-2744
Document Number	0000042997
Instrument Date	Feb 29, 2020
Transaction Type	Mortgage
Record Updated	Mar 18, 2020
Title Company	AMROCK TITLE CA INC

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Husband and Wife
Address	2100 WALNUT ST MARTINEZ CA 945532744, MARTINEZ, CA 94553-2744

Mortgage

Document Number	0000042997
Date	Mar 6, 2020
Instrument	42997

Lender

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

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Mar 5, 2050

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	Martinez Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$497,238 (+2%) Land $286,289 Building $210,949
2025	$6,608.00 (+6.51%) Homeowner's exemption	$487,489 (+4.04%) Land $280,676 Building $206,813
2023	$6,204.00 (+1.65%) Homeowner's exemption	$468,561 Land $269,778 Building $198,783
2022	$6,103.00

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

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Low lower than 80% of the US · lower than 88% of California
Wildfire Likelihood	0.01% annual chance
Exposure	None beyond 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	CITY OF MARTINEZ serves 31,015 people · EPA ID CA0710006
Water Source	Purchased surface water from CONTRA COSTA WATER DISTRICT
Last State Inspection	Oct 2025
Lead	Under 1 ppb (2023–2025) 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 765 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber · DSL · Fixed Wireless in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250
Astound Broadband Fiber	1,500 / 1,500
Unwired Fixed Wireless	300 / 25

May also be available: T-Mobile, Verizon.

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