487 Arthur Rd, Martinez, CA 94553 Property Records

Contra Costa County property record for 487 Arthur Rd, Martinez, CA 94553

Property Summary

Property Type	Single Family Home
Details	2 bd · 2 ba · 1,404 sqft · built 1940
Lot Size	0.19 acres (8,276 sqft)
Owner	2 Individual Names on File
Last Sale	$80,000 (Nov 1994)
Tax Bill	$3,401 (2025)
Deeds & Mortgages	Nov 2022 Transfer
Flood Zone	Zone X (minimal risk)
APN	`380-070-002-7`

Property Details

APN / Parcel Number

Primary APN	`380-070-002-7`
Alternative APN	`380-070-002`

Interior

Bedrooms	2 Beds
Full Baths	2 Baths
Total Rooms	5 Rooms
Stories	1 Story
Building Area	1,404 sqft Living Area
1st Floor Area	1,404 sqft

Exterior

Year Built	Built 1940
Effective Year Built	Effective 1940
Lot Area	8,276 sqft (0.19 acres)
Garage Type	Attached
Garage Area	180 sqft

Location & Zoning

Street Address	487 ARTHUR RD
City	MARTINEZ
State	CA
Zip	94553-1458
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R6
Legal Description	RO LAS JUNTAS
Legal Subdivision	LAS JUNTAS RHO
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	1
Census Block	1021
Census Tract	320001

Owner

Source: Contra Costa County assessment roll, APN 380-070-002-7, as of 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 Individual Names on File
Mailing Address	487 ARTHUR RD, MARTINEZ, CA 94553-1458
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Joint Tenants

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Nov 08, 1994 · Amount on Record
Deed Sale	Nov 08, 1994 · Amount on Record
Deed Document Number	1994272930
Last Transfer Date	Jun 16, 2022
Transfer Doc	0000173760
Record Updated	Sep 20, 2026

November 2022: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Nov 15, 2022
Property Address	487 ARTHUR RD, MARTINEZ, CA 94553-1458
Document Number	0000173760
Instrument Date	Jun 16, 2022
Instrument	2022-173760
Transaction Type	Transfer
Record Updated	Nov 24, 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
Relationship	Joint Tenants
Address	487 ARTHUR RD, MARTINEZ, CA 94553-1458

Tax Assessment & Valuation

Source: Contra Costa County assessment roll as of July 14, 2026 · Last verified July 2026

Property Jurisdictions

Type	Name
State	California
County	Contra Costa County
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		$205,560 (+2%) Land $102,780 Building $102,780
2025	$3,401.00 (+8%) Homeowner's exemption	$201,530 (+4.04%) Land $100,765 Building $100,765
2023	$3,149.00 (+3.72%) Homeowner's exemption	$193,706 Land $96,853 Building $96,853
2022	$3,036.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), as of October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133200011, as of September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition, as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Community Rating System	Class 6 (20% premium discount)
Nearby Flood Policies	2 in force
Nearby Flood Claims	1 (1998)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Jan 1998 · rainfall accumulation

Wildfire

Wildfire Risk	Low lower than 99.1% of the US · lower than 99.2% of California
Wildfire Likelihood	Under 0.01% annual chance
Exposure	None beyond ember reach

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, 497 locations within half a mile, as of December 31, 2025 · Last verified October 2026

Provider	Max Down / Up (Mbps)
AT&T Fiber · Fixed Wireless, DSL in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250
Unwired Fixed Wireless	300 / 25
Verizon Fixed Wireless	300 / 20
T-Mobile USA Fixed Wireless	100 / 20

May also be available: Radiate Holdings.

Drinking Water

Source: EPA Safe Drinking Water Information System, water system CA0710003, as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	CONTRA COSTA WATER DISTRICT serves 210,500 people
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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.