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520 Arthur Rd, Martinez, CA 94553 Property Records

Contra Costa County property record for 520 Arthur Rd, Martinez, CA 94553 · Last verified August 2026

Property Summary

Property TypeSingle Family Home
Details2 bd · 1 ba · 1,011 sqft · built 1940
Lot Size0.19 acres (8,276 sqft)
OwnerCompany Name on File
Last Sale$325,000 (Dec 2024)
Tax Bill$6,473 (2025)
Deeds & MortgagesJul 2026 Mortgage
Jan 2026 Construction Loan
+ 1 more
Flood ZoneZone X (minimal risk)
APN380-120-045-6

Property Details

APN / Parcel Number

Primary APN380-120-045-6
Alternative APN
  • 380-120-045

Interior

Bedrooms2 Beds
Full Baths1 Bath
Total Rooms5 Rooms
Stories1 Story
Building Area1,011 sqft Living Area
1st Floor Area1,011 sqft

Exterior

Year BuiltBuilt 1940
Effective Year BuiltEffective 1940
Lot Area8,276 sqft (0.19 acres)
Garage TypeAttached
Garage Area300 sqft
Parking Spaces1 Parking Space

Location & Zoning

Street Address520 ARTHUR RD
CityMARTINEZ
StateCA
Zip94553-1402
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionPOR RO LAS JUNTAS
Legal SubdivisionLAS JUNTAS RHO
JurisdictionCONTRA COSTA CA
Township / Civil DivisionCENTRAL CONTRA COSTA
Census Block Group1
Census Block1015
Census Tract320001

Owner

Source: Contra Costa County records · APN 380-120-045-6

Assessment roll updated July 14, 2026 · Last verified August 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of RecordCompany Name on File
Mailing Address2306 SAXON ST, MARTINEZ, CA 94553-3348
Owner TypeCompany
VestingLimited Liability Partnership

Deeds, Mortgages & Sale History

DateDocument
Jul 20, 2026Deed of Trust, Mortgage · Conventional Mortgage
NONE LISTED ON DOCUMENT
Jan 09, 2026Grant Deed, Transfer · Construction Mortgage
LOAN FUNDER LLC
Jun 04, 2018Deed of Trust, Mortgage · Conventional Mortgage
LOANDEPOT.COM LLC

Assessor's Deed Record

Deed NamesVerified Name on Deed
Last SaleDec 27, 2024 · Amount on Record
Deed SaleDec 27, 2024 · Amount on Record
Deed Document Number2024138218
Prior Transfer DateJul 30, 2015
Prior Transfer Doc0000158763
Record UpdatedSep 20, 2026

July 2026: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionCONTRA COSTA CA
Recording DateJul 20, 2026
Property Address520 ARTHUR RD, MARTINEZ, CA 94553-1402
Document Number0000076185
Instrument DateJul 09, 2026
Instrument202676185
Transaction TypeMortgage
Record UpdatedJul 27, 2026
Title CompanyNONE LISTED ON DOCUMENT

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipLimited Liability Partnership, 266
Address2306 SAXON ST, MARTINEZ, CA 94553-3348

Mortgage

Document Number0000076185,
DateJul 20, 2026
Instrument202676185
Lender
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term360 Months
Interest
Rate6.52%
Max Rate-1%

January 2026: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionCONTRA COSTA CA
Recording DateJan 09, 2026
Property Address520 ARTHUR RD, MARTINEZ, CA 94553-1402
Document Number0000002496
Instrument DateDec 22, 2025
Instrument2026- 002496
Transaction TypeTransfer
Record UpdatedJan 20, 2026
Title CompanyCHICAGO TITLE COMPANY

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address2306 SAXON ST, MARTINEZ, CA 94553-3348

Mortgage

Document Number0000002497
DateJan 09, 2026
Instrument2026- 002497
Lender
NameLOAN FUNDER LLC
TypeMortgage Company
Agreement
TypeConstruction Mortgage
AmountAmount Recorded
Term361 Months
DueFeb 01, 2056

June 2018: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionCONTRA COSTA CA
Property Address520 ARTHUR RD, MARTINEZ, CA 94553-1402
Document Number0000094377
Instrument DateJun 04, 2018
Transaction TypeMortgage
Record UpdatedJun 20, 2018
Title CompanyWFG LENDER SERVICES

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipJoint Tenants with Right of Survivorship
Address2543 PLUMMER AVE SAN JOSE CA 951254858, SAN JOSE, CA 95125-4858

Mortgage

Document Number0000094377
DateJun 14, 2018
Instrument94377
Lender
NameLOANDEPOT.COM LLC
TypeFunding / Finance Company
AddressFOOTHILL RANCH, CA 92610
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term360 Months
DueJun 13, 2048

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateCalifornia
CountyContra Costa County
Unified School DistrictMartinez Unified School District (KG - 12)

Tax Bill & Assessment History

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

YearTax BillAssessed Value
2026$476,700 (+3.63%) Land $367,200 Building $109,500
2025$6,473.00 (+359.73%)$460,000 (+1,311.04%) Land $360,000 Building $100,000
2023$1,408.00 (+6.02%)$32,600 Land $15,518 Building $17,082
2022$1,328.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood ZoneZone X
Flood HazardMinimal
500-Year FloodplainNo
Special Flood Hazard AreaNo
Nearest Special Flood Hazard AreaZone AE, within 500 ft

Wildfire

Wildfire RiskNot rated
no burnable land in reach
Wildfire LikelihoodNegligible
ExposureNone
beyond ember reach

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

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