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817 Shell Ave, Martinez, CA 94553 Property Records

Contra Costa County property record for 817 Shell Ave, Martinez, CA 94553 · Last verified July 2026

Property Highlights

Property TypeResidential > Single Family > Home
Bedrooms3 Beds
Bathrooms1 Baths
Year BuiltBuilt 1956
Square Footage936 sqft Living Area
Lot Size4,940 sqft (0.113 acres)
OccupancyOwner Occupied
Last Sale$110,000 (2017)
Tax Bill$5,277.00 (2025)

Property Details

APN / Parcel Number

Primary APN375-131-002-4
Alternative APN
  • 375-131-002

Interior

Bedrooms3 Beds
Full Baths1 Baths
Total Rooms5 Rooms
Building Area936 sqft Living Area
1st Floor936 sqft 1st Floor
Stories1 Stories

Exterior

Year BuiltBuilt 1956
Effective Year BuiltEffective 1956
Lot Area4,940 sqft (0.113 acres)
Parking Spaces1 Parking Spaces
Garage TypeAttached Garage
Garage Area280 sqft Garage

Location & Zoning

Street Address817 SHELL AVE
CityMARTINEZ
StateCA
Zip94553-3324
Property UsageResidential Property Usage
TypeResidential > Single Family > Home
Legal DescriptionMARTINEZ LAND #6 POR 1TO4 40
Legal SubdivisionMARTINEZ LAND CO 06
Legal Tract6
Legal Block40
Legal Lot Number1-4
JurisdictionCONTRA COSTA CA
Minor Civil DivisionCENTRAL CONTRA COSTA
Census Blockgroup1
Census Block1010
Census Tract319002

Owner

Source: Contra Costa County records · APN 375-131-002-4

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 Record2 Individual Names on File
Mailing Address817 SHELL AVE, MARTINEZ, CA 94553-3324
OccupancyOwner Occupied
Owner TypeOwner is an Individual, Couple or Unincorporated Entity
VestingJoint Tenants

Deeds, Mortgages & Sale History

DateDocument
Feb 09, 2021Deed of Trust, Mortgage · Conventional Mortgage
ALAMEDA MORTGAGE CORP
Jan 18, 2017Intrafamily Transfer, Transfer · Conventional Mortgage
WELLS FARGO BANK NA

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleJan 18, 2017 · Amount on Record
Deed SaleJan 18, 2017 · Amount on Record
Prior SaleDec 07, 2001 · Amount on Record
Deed Doc Number201710824
Prior Transfer DateJan 09, 2017
Prior Transfer Doc0000010824
Record RefreshedSep 20, 2026

February 2021: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionCONTRA COSTA CA
Property Address817 SHELL AVE, MARTINEZ, CA 94553-3324
Transaction TypeMortgage
Record UpdatedNov 03, 2022
Title CompanyNORTH AMERICAN TITLE

Transferred To (Grantee/Buyer)

NameVerified Name
Address817 SHELL AVE, BRIONES, CA 94553-3324

Mortgage

Document Number0000039911
DateFeb 09, 2021
Instrument2021-039911
Lender
NameALAMEDA MORTGAGE CORP
TypeMortgage Company
AddressWALNUT CREEK, CA 94596
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueMar 01, 2051

January 2017: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionCONTRA COSTA CA
Recording DateJan 18, 2017
Property Address817 SHELL AVE, MARTINEZ, CA 94553-3324
Document Number0000010824
Map ReferenceMAP14 PG297
Instrument DateJan 09, 2017
Instrument2017-010824
Transaction TypeTransfer
Record UpdatedNov 03, 2022
Title CompanyPLACER TITLE COMPANY

Transaction

AmountAmount Recorded
Tax$0.00
Amount AccuracyCalculated from Tax (Full/Partial Unknown)
Additional
  • Interfamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipJoint Tenants
Address817 SHELL AVE, MARTINEZ, CA 94553-3324

Mortgage

Document Number0000010825
DateJan 18, 2017
Instrument2017-010825
Lender
NameWELLS FARGO BANK NA
TypeBank
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueFeb 01, 2047

Tax Assessment & Valuation

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

Property Jurisdictions

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

Tax Bill & Assessment History

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

YearTax BillAssessed Value
2026$364,631 (+2%) Land $183,822 Building $180,809
2025$5,277.00 (+7.43%)$357,482 (+4.04%) Land $180,218 Building $177,264
2023$4,912.00 (+3%)$343,603 Land $173,221 Building $170,382
2022$4,769.00

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