530 Walnut Ave, Martinez, CA 94553 Property Records

Contra Costa County property record for 530 Walnut Ave, Martinez, CA 94553 · Last verified July 2026

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,746 sqft · built 1951
Lot Size	0.18 acres (7,840 sqft)
Owner	2 Company Names on File
Last Sale	$860,000 (May 2024)
Tax Bill	$11,180 (2025)
Deeds & Mortgages	Apr 2019 Sale
Flood Zone	Zone AO (high risk)
APN	`370-292-006-1`

Property Details

APN / Parcel Number

Primary APN	`370-292-006-1`
Alternative APN	`370-292-006`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	6 Rooms
Stories	1 Story
Building Area	1,746 sqft Living Area
1st Floor Area	1,746 sqft

Exterior

Year Built	Built 1951
Effective Year Built	Effective 1980
Lot Area	7,840 sqft (0.18 acres)
Garage Type	Attached
Garage Area	472 sqft
Parking Spaces	2 Parking Spaces

Location & Zoning

Street Address	530 WALNUT AVE
City	MARTINEZ
State	CA
Zip	94553-3933
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	POR RO EL PINOLE
Legal Subdivision	EL PINOLE RHO
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	3
Census Block	3026
Census Tract	318000

Owner

Source: Contra Costa County records · APN 370-292-006-1

Assessment roll updated July 14, 2026 · Last verified July 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 File
Mailing Address	530 WALNUT AVE, MARTINEZ, CA 94553-3933
Owner Type	Company
Vesting	Life Tenant

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	May 16, 2024 · Amount on Record
Deed Sale	May 16, 2024 · Amount on Record
Prior Sale	Apr 19, 2019 · Amount on Record
Deed Document Number	202445982
Prior Transfer Date	Feb 27, 2003
Prior Transfer Doc	0000103755
Record Updated	Sep 20, 2026

April 2019: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Apr 19, 2019
Property Address	530 WALNUT AVE, MARTINEZ, CA 94553-3933
Document Number	0000054397
Instrument Date	Apr 15, 2019
Instrument	54397
Transaction Type	Transfer
Record Updated	May 16, 2019
Title Company	CHICAGO TITLE COMPANY, CHICAGO TITLE CO

Transaction

Amount	Amount Recorded
Tax	$759.00
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	530 WAINUT AVE MARTINEZ CA 94553, MARTINEZ, CA 94553

Tax Assessment & Valuation

Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 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

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

Year	Tax Bill	Assessed Value
2026		$935,544 (+6.65%) Land $478,584 Building $456,960
2025	$11,180.00 (+19.02%) Homeowner's exemption	$877,200 (+18.57%) Land $469,200 Building $408,000
2023	$9,393.00 (+1.68%)	$739,816 Land $407,435 Building $332,381
2022	$9,238.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133180003, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone AO sheet flow 1–3 ft
Special Flood Hazard Area	Yes
Flood Hazard	High
100-Year Floodplain	Yes 1% annual chance
Floodway	No
Base Flood Elevation	Varies along the reach; see FIRM
Flood Insurance Requirement	Required (federally backed mortgages)
Flood Insurance Cost	Premium on Record median of 109 individual NFIP policies nearby
Nearby Flood Policies	109 in force
Nearby Flood Claims	32 (1980–2019)
Claims Outside the SFHA	3 of 32
Most Recent Claim	Feb 2019
Claims By Storm	Severe Storms, Flooding, Mudslides, And Landslides, Jan 2006 · 12 claims Severe Storms, Flooding, Mud And Landslides, Jan 1997 · 5 claims Severe Storms, Flood, Mudslides & High Tide, Jan 1982 · 6 claims

Wildfire

Wildfire Risk	Moderate above 44% of the US · above 26% of California
Wildfire Likelihood	About 1 in 1,471 per year
Exposure	Indirect within ember reach
Adjoins Burnable Land	Yes

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.

Internet Providers

Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 212 locations within about half a mile of this property

Provider	Technology	Download / Upload (Mbps)
Xfinity	Cable	2,000 / 250
AT&T	Fixed Wireless	100 / 20
AT&T	DSL	100 / 20

May also be available at this address: Unwired, Radiate Holdings, Verizon, T-Mobile USA. Availability varies by address; speeds are provider-advertised maximums, not measured.