634 Walnut Ave, Martinez, CA 94553 Property Records

Contra Costa County property record for 634 Walnut Ave, Martinez, CA 94553

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 2,128 sqft · built 1953
Lot Size	0.349 acres (15,200 sqft)
Owner	2 Individuals on Record
Last Sale	$290,000 (Aug 1999)
Tax Bill	$5,363 (2025)
Deeds & Mortgages	May 2017 Line of Credit Jan 2022 Mortgage
Flood Zone	Zone AO (high risk)
APN	`370-292-029-3`

Property Details

APN / Parcel Number

Primary APN	`370-292-029-3`
Alternative APN	`370-292-029`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	9 Rooms
Stories	1 Story
Building Area	2,128 sqft Living Area
1st Floor Area	2,128 sqft

Exterior

Year Built	Built 1953
Effective Year Built	Effective 1953
Lot Area	15,200 sqft (0.349 acres)

Location & Zoning

Street Address	634 WALNUT AVE
City	MARTINEZ
State	CA
Zip	94553-3962
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R10
Legal Description	ALHAMBRA VALLEY GARDEN #1 LOT 8 POR 11
Legal Subdivision	ALHAMBRA VLY GARDEN 01
Legal Lot Number	8
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	1
Census Block	1007
Census Tract	319001

Owner

Source: Contra Costa County assessment roll, 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 Individuals on Record
Mailing Address	634 WALNUT AVE, MARTINEZ, CA 94553-3962
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Joint Tenants

Deeds, Mortgages & Sale History

Date	Document
May 12, 2017	Deed of Trust, Mortgage · Line of Credit JPMORGAN CHASE BANK NA
Jan 21, 2022	Deed of Trust, Mortgage · Conventional Mortgage ROCKET MORTGAGE LLC

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Aug 3, 1999 · Amount on Record
Deed Sale	Aug 3, 1999 · Amount on Record
Deed Document Number	1999207621
Prior Transfer Date	Jul 13, 1999
Prior Transfer Doc	0000207620
Record Updated	Sep 20, 2026

May 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	634 WALNUT AVE, MARTINEZ, CA 94553-3962
Transaction Type	Mortgage
Record Updated	Nov 3, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000082763
Date	May 12, 2017
Instrument	2017-082763

Lender

Name	JPMORGAN CHASE BANK NA
Type	Bank
Address	COLUMBUS, OH 43240

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	420 Months
Due	May 1, 2052

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

January 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	634 WALNUT AVE, MARTINEZ, CA 94553-3962
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	OLD REPUBLIC TITLE CO

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	634 WALNUT AVE, MARTINEZ, CA 94553-3962

Mortgage

Document Number	0000012966
Date	Jan 21, 2022
Instrument	2022-012966

Lender

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

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	289 Months
Due	Feb 1, 2046

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		$454,614 (+2%) Land $202,537 Building $252,077
2025	$5,363.00 (+6.3%) Homeowner's exemption	$445,701 (+4.04%) Land $198,566 Building $247,135
2023	$5,045.00 (+1.71%) Homeowner's exemption	$428,396 Land $190,856 Building $237,540
2022	$4,960.00

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 AO high risk · sheet flow 1–3 ft
100-Year Floodplain	Yes 1% annual chance
Floodway	No
Base Flood Elevation	Varies along the reach; see FIRM
Flood Insurance Requirement	Required federally backed loans
Flood Insurance Cost	Premium on Record median of 38 policies
Nearby Flood Policies	38 in force
Nearby Flood Claims	1 (2023)
Most Recent Claim	Jan 2023 · Severe Winter Storms, Flooding, Landslides, And Mudslides

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 43% of the US · lower than 74% of California
Wildfire Likelihood	0.07% annual chance
Exposure	Indirect within ember reach
Adjoins Burnable Land	Yes

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 212 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
AT&T Fixed Wireless · DSL	100 / 20

May also be available: Astound Broadband, T-Mobile, Unwired, Verizon.

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