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850 Shell Ave, Martinez, CA 94553 Property Records

Contra Costa County property record for 850 Shell Ave, Martinez, CA 94553 · Last verified August 2026

Property Highlights

Property TypeResidential > Single Family > Home
Bedrooms3 Beds
Bathrooms2 Baths
Year BuiltBuilt 1980
Square Footage1,148 sqft Living Area
Lot Size4,680 sqft (0.107 acres)
OccupancyOwner Occupied
Last Sale$650,000 (2023)
Tax Bill$8,812.00 (2025)

Property Details

APN / Parcel Number

Primary APN375-133-013-9
Alternative APN
  • 375-133-013

Interior

Bedrooms3 Beds
Full Baths2 Baths
Total Rooms5 Rooms
Building Area1,148 sqft Living Area
1st Floor1,148 sqft 1st Floor
Stories1 Stories

Exterior

Year BuiltBuilt 1973
Effective Year BuiltEffective 1980
Lot Area4,680 sqft (0.107 acres)
Parking Spaces1 Parking Spaces
Garage TypeAttached Garage
Garage Area297 sqft Garage

Utilities and HVAC

Heating SystemForced Air with Air Conditioning Heating

Location & Zoning

Street Address850 SHELL AVE
CityMARTINEZ
StateCA
Zip94553-3357
Property UsageResidential Property Usage
TypeResidential > Single Family > Home
Legal DescriptionPARCEL MAP 22 PG 41 PCL B
Legal SubdivisionPM 22 41
Legal Tract22PM41
JurisdictionCONTRA COSTA CA
Minor Civil DivisionCENTRAL CONTRA COSTA
Census Blockgroup3
Census Block3004
Census Tract319002

Owner

Source: Contra Costa County records · APN 375-133-013-9

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 Record2 Individual Names on File
Mailing Address850 SHELL AVE, MARTINEZ, CA 94553-3357
OccupancyOwner Occupied
Owner TypeOwner is an Individual, Couple or Unincorporated Entity
VestingJoint Tenants

Deeds, Mortgages & Sale History

DateDocument
Feb 13, 2026Deed of Trust, Mortgage · Federal Housing Administration (FHA) Mortgage
AMERICAN PACIFIC MORTGAGE CORP
Jul 27, 2023Grant Deed, Transfer · Federal Housing Administration (FHA) Mortgage
PLANET HOME LENDING LLC
Apr 26, 2021Deed of Trust, Mortgage
FREMONT BANK

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleJul 27, 2023 · Amount on Record
Deed SaleJul 27, 2023 · Amount on Record
Deed Doc Number202371818
Prior Transfer DateJul 21, 2023
Prior Transfer Doc0000071817
Record RefreshedSep 20, 2026

February 2026: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionCONTRA COSTA CA
Property Address850 SHELL AVE, MARTINEZ, CA 94553-3357
Transaction TypeMortgage
Record UpdatedFeb 25, 2026
Title CompanyORTC

Transferred To (Grantee/Buyer)

NameVerified Name
Address850 SHELL AVE, MARTINEZ, CA 94553-3357

Mortgage

Document Number0000014578
DateFeb 13, 2026
Instrument2026- 014578
Lender
NameAMERICAN PACIFIC MORTGAGE CORP
TypeMortgage Company
Address3000 LAVA RIDGE CT STE 200, ROSEVILLE, CA 95661
Agreement
TypeFederal Housing Administration (FHA) Mortgage
AmountAmount Recorded
Term361 Months
DueMar 01, 2056

July 2023: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionCONTRA COSTA CA
Recording DateJul 27, 2023
Property Address850 SHELL AVE, MARTINEZ, CA 94553-3357
Document Number0000071818
Map ReferenceMB 22 PG 41
Instrument DateJul 18, 2023
Instrument2023-071818
Transaction TypeTransfer
Record UpdatedAug 08, 2023
Title CompanyORANGE COAST TITLE COMPANY/NTHRN CA, ORANGE COAST TTL CO OF NOCAL

Transaction

AmountAmount Recorded
DownpaymentDownpayment on File
Loan-to-Value (LTV)LTV on Record
Tax$0.00
Amount AccuracyRounded Values by County
Additional
  • Arms Length Transaction

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipJoint Tenants
Address850 SHELL AVE, MARTINEZ, CA 94553-3357

Mortgage

Document Number0000071819
DateJul 27, 2023
Instrument2023-071819
Lender
NamePLANET HOME LENDING LLC
TypeMortgage Company
Agreement
TypeFederal Housing Administration (FHA) Mortgage
AmountAmount Recorded
Term361 Months
DueAug 01, 2053

April 2021: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionCONTRA COSTA CA
Property Address850 SHELL AVE, MARTINEZ, CA 94553-3357
Transaction TypeMortgage
Record UpdatedNov 03, 2022
Title CompanyFIDELITY NATIONAL TITLE

Transferred To (Grantee/Buyer)

NameVerified Name
Address850 SHELL AVE, MARTINEZ, CA 94553-3357

Mortgage

Document Number0000124777
DateApr 26, 2021
Instrument2021-124777
Lender
NameFREMONT BANK
TypeBank
AddressLIVERMORE, CA 94551
Agreement
AmountAmount Recorded
Term361 Months
DueMay 01, 2051

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$676,260 (+2%) Land $447,372 Building $228,888
2025$8,812.00 (+415.02%)$663,000 (+797.83%) Land $438,600 Building $224,400
2023$1,711.00 (+5.49%) Homeowner's exemption$73,845 Land $14,010 Building $59,835
2022$1,622.00

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