303 Brown St, Martinez, CA 94553 Property Records

Contra Costa County property record for 303 Brown St, Martinez, CA 94553

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,145 sqft · built 2003
Lot Size	0.092 acres (4,000 sqft)
Owner	Company Name on Record
Last Sale	$570,000 (Mar 2018)
Tax Bill	$8,571 (2025)
Deeds & Mortgages	Feb 2019 Mortgage Sep 2020 Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`372-296-010-5`

Property Details

APN / Parcel Number

Primary APN	`372-296-010-5`
Alternative APN	`372-296-010`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	7 Rooms
Stories	1 Story
Building Area	1,145 sqft Living Area
1st Floor Area	1,145 sqft

Exterior

Year Built	Built 2003
Effective Year Built	Effective 2003
Lot Area	4,000 sqft (0.092 acres)
Garage Type	Attached
Garage Area	200 sqft
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

Cooling System	Central

Location & Zoning

Street Address	303 BROWN ST
City	MARTINEZ
State	CA
Zip	94553-2516
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1
Legal Description	ORIGINAL SURVEY POR 5 70
Legal Subdivision	MARTINEZ
Legal Block	70
Legal Lot Number	5
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	1
Census Block	1008
Census Tract	318000

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	303 BROWN ST, MARTINEZ, CA 94553-2516
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Feb 21, 2019	Deed of Trust, Mortgage · FHA Mortgage NEWREZ LLC
Sep 28, 2020	Deed of Trust, Mortgage · Conventional Mortgage SIERRA PACIFIC MORTGAGE CO INC
Feb 20, 2020	Quit Claim Deed, Transfer ATTORNEY ONLY
Mar 21, 2018	Grant Deed, Transfer · FHA Mortgage NEW PENN FINANCIAL LLC

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Mar 21, 2018 · Amount on Record
Deed Sale	Mar 21, 2018 · Amount on Record
Prior Sale	Nov 21, 2014 · Amount on Record
Deed Document Number	201843718
Last Transfer Date	Feb 3, 2020
Transfer Doc	0000031841
Record Updated	Oct 29, 2026

February 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	303 BROWN ST, MARTINEZ, CA 94553-2516
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	AVENUE 365 LENDER SERVICES

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000023483
Date	Feb 21, 2019
Instrument	2019-023483

Lender

Name	NEWREZ LLC
Type	Non-Lending Institution
Address	PLYMOUTH MEETING, PA 19462

Agreement

Type	FHA Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Mar 1, 2049

September 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	303 BROWN ST, MARTINEZ, CA 94553-2516
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	FIDELITY TITLE COMPANY

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3030 BROWN STREET, MARTINEZ, CA 94553

Mortgage

Document Number	0000218811
Date	Sep 28, 2020
Instrument	2020-218811

Lender

Name	SIERRA PACIFIC MORTGAGE CO INC
Type	Mortgage Company
Address	FOLSOM, CA 95630

Agreement

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

February 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Feb 20, 2020
Property Address	303 BROWN ST, MARTINEZ, CA 94553-2516
Document Number	0000031841
Instrument Date	Feb 3, 2020
Instrument	31841
Transaction Type	Transfer
Record Updated	Mar 9, 2020
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	303 BROWN ST MARTINEZ CA 945532516, MARTINEZ, CA 94553-2516

March 2018: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Mar 21, 2018
Property Address	303 BROWN ST, MARTINEZ, CA 94553-2516
Document Number	0000043718
Instrument Date	Mar 15, 2018
Instrument	2018-043718
Transaction Type	Transfer
Record Updated	Nov 3, 2022
Title Company	NORTH AMERICAN TITLE

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property with Right of Survivorship
Address	303 BROWN ST, MARTINEZ, CA 94553-2516

Mortgage

Document Number	0000043719
Date	Mar 21, 2018
Instrument	2018-043719

Lender

Name	NEW PENN FINANCIAL LLC
Type	Mortgage Company

Agreement

Type	FHA Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Apr 1, 2048

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		$661,528 (+2%) Land $391,695 Building $269,833
2025	$8,571.00 (+6.47%)	$648,558 (+4.04%) Land $384,015 Building $264,543
2023	$8,050.00 (+1.67%)	$623,375 Land $369,104 Building $254,271
2022	$7,918.00

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
Nearest Special Flood Hazard Area	Zone AO, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on Record median of 23 policies
Community Rating System	Class 6 (20% premium discount)
Nearby Flood Policies	23 in force
Nearby Flood Claims	12 (1980–2022)
Claims Outside the SFHA	3 of 12
Most Recent Claim	Dec 2022 · Severe Winter Storms, Flooding, Landslides, And Mudslides
Claims by Event	Severe Storms, Flooding, Mudslides, And Landslides, Jan 2006 · 5 claims Severe Storms, Flooding, Mud And Landslides, Jan 1997 · 2 claims

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	Moderate above 54% of the US · lower than 68% of California
Wildfire Likelihood	0.1% annual chance
Exposure	Indirect 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	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 358 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Astound Broadband Fiber · Cable in parts of the area	1,500 / 1,500
Verizon Fixed Wireless	300 / 20
T-Mobile Fixed Wireless	100 / 20
AT&T Fixed Wireless · DSL · Fiber in parts of the area	100 / 20

May also be available: Unwired.

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