$650,000
SOLD FEB 17, 2026

823 Shell Ave Martinez, CA 94553

3 Beds
1 Bath
936 Sq Ft
4,748 Sq Ft Lot

Recently Sold

$694 Per Sq Ft

2% Above List Price

28 Days on Market

Highlights

  • Spa
  • Granite Flooring
  • Granite Countertops
  • Morello Park Elementary School Rated A
  • Bonus Room
  • Family Room Off Kitchen

About This Home

As of February 2026

Welcome to 823 Shell Avenue in Martinez. This updated 3-bedroom, 1-bath single-story home offers mid century vintage style and modern everyday comfort. The light-filled interior features updated flooring, contemporary lighting, and a functional open layout ideal for relaxing or entertaining. The remodeled kitchen includes white cabinetry, granite countertops, and stainless steel appliances. Bedrooms are well-sized, including a primary with custom accent wall and ceiling fan. The refreshed bathroom offers clean, modern finishes. Outside, enjoy a beautifully landscaped, drought-tolerant yard with great curb appeal, plus a private backyard perfect for entertaining or unwinding. Long driveway for off-street parking. Conveniently located near downtown Martinez, shopping, dining, parks, and commuter routes. Move-in ready.

Last Agent to Sell the Property

Josiah Wotila

Coldwell Banker Realty License #02162016 Listed on: 01/09/2026

Coldwell Banker Realty

Last Buyer's Agent

Tina Kaur-campbell

Keller Williams Realty License #01996066

Keller Williams Realty

Home Details

Home Type

  • Single Family

Year Built

  • Built in 1956

Lot Details

  • East Facing Home
  • Wood Fence

Parking

  • 1 Car Garage
  • Front Facing Garage
  • Unpaved Driveway
  • Uncovered Parking

Home Design

  • Slab Foundation
  • Composition Roof
  • Aluminum Siding

Interior Spaces

  • 936 Sq Ft Home
  • 1-Story Property
  • Ceiling Fan
  • Formal Entry
  • Family Room Off Kitchen
  • Living Room
  • Bonus Room
  • Granite Flooring

Kitchen

  • Free-Standing Gas Range
  • Dishwasher
  • Granite Countertops

Bedrooms and Bathrooms

  • 3 Bedrooms
  • Bathroom on Main Level
  • 1 Full Bathroom

Laundry

  • Laundry in Garage
  • Electric Dryer Hookup

Additional Features

  • Spa
  • Central Heating

Listing and Financial Details

  • Assessor Parcel Number 375-131-003-2

Home Details

Home Type

Single Family

Year Built

Built in 1956

Lot Details

4,748 Sq Ft Lot

Parking

1

Listing Details

  • Interior Amenities: Formal Entry
  • Type: Residential
  • Property Sub Type: Single Family Residence
  • Subtype Description: Modified
  • Directions To Property: From Southbound on Pacheco take a left onto Shell Avenue. 832 is the third house on the right before Pine Street
  • Stories: 1
  • Levels: One
  • ArchitecturalStyle: Ranch
  • Property Faces: East
  • Special Features: None

Interior Features

  • Appliances: Dishwasher, Free Standing Gas Range, Free Standing Refrigerator
  • Bedrooms: 3
  • Full Bathrooms: 1
  • Living Room Features: Other
  • Flooring: Granite, Other
  • Square Footage: 936.00
  • Bathrooms: 1
  • Family Room Features: Other
  • Kitchen Features: Granite Counter, Kitchen/Family Combo
  • Room Type: Bonus Room, Living Room, Primary Bedroom, Possible Guest
  • Main Level: Bedroom(s), Full Bath(s), Garage, Kitchen
  • Spa Features: Spa/Hot Tub Personal

Exterior Features

  • Construction Materials: Aluminum Siding, Glass, Wood
  • Foundation: Slab
  • Lot Features: See Remarks
  • Roof: Composition
  • Fencing: Fenced, Wood

Garage/Parking

  • Parking Features: Garage Facing Front, Uncovered Parking Spaces 2+
  • Total Parking Spaces: 3.00
  • Garage Spaces: 1.00
  • Driveway/Sidewalks: Paved Sidewalk, Unpaved

Utilities

  • Cooling: Ceiling Fan(s)
  • Sewer: Public Sewer
  • Utilities: Electric, Natural Gas Available, Public
  • Water Source: Public
  • Heating: Central, Other
  • Laundry Features: Electric, In Garage

Lot Info

  • Assessor Parcel Number: 375-131-003-2

Building Info

  • Year Built: 1956

MLS Schools

  • School District (County): Contra Costa

Ownership History

Date Name Owned For Owner Type

Purchase Details

Listed on
Jan 9, 2026
Closed on
Feb 10, 2026
Sold by
Sammut Andrew
Bought by
Szczepanski Matthew David and Szczepanski Jenna Elizabeth
Seller's Agent
Josiah Wotila
Coldwell Banker Realty
Buyer's Agent
Tina Kaur-campbell
Keller Williams Realty
List Price
$639,000
Sold Price
$650,000
Premium/Discount to List
$11,000
1.72%
Views
52

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Avg. Annual Appreciation
-26.64%
Original Mortgage
$585,000
Outstanding Balance
$585,000
Interest Rate
6.15%
Mortgage Type
New Conventional
Estimated Equity
$49,092

Purchase Details

Closed on
Aug 17, 2011
Sold by
Platinum Investing & Realty Inc
Bought by
Sammut Andrew

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$197,707
Interest Rate
4.53%
Mortgage Type
FHA

Purchase Details

Closed on
Apr 19, 2011
Sold by
Keenan Christopher M and Keenan Nehemiah B
Bought by
Platinum Investing & Realty Inc

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$105,000
Interest Rate
4.72%
Mortgage Type
Unknown

Purchase Details

Closed on
Aug 3, 2007
Sold by
Keenan Christopher M and Keenan Christopher
Bought by
Keenan Christopher M and Keenan Nehemiah B

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$368,000
Interest Rate
6.87%
Mortgage Type
Stand Alone Refi Refinance Of Original Loan

Purchase Details

Closed on
Aug 15, 2005
Sold by
Sph7
Bought by
Keenan Christopher

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$360,000
Interest Rate
6.5%
Mortgage Type
Stand Alone First

Purchase Details

Closed on
Jun 13, 2005
Sold by
Hansen Linda
Bought by
Sph7

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$321,131
Interest Rate
5.72%
Mortgage Type
Seller Take Back

Purchase Details

Closed on
May 24, 1999
Sold by
Moe Inez C Tre
Bought by
Hansen Linda

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$128,000
Interest Rate
6.86%
Mortgage Type
Purchase Money Mortgage

Purchase Details

Closed on
Sep 23, 1998
Sold by
Moe Inez C and Moe Beverly J
Bought by
Moe Inez C and Fields Beverly J

Purchase Details

Closed on
Aug 2, 1994
Sold by
Moe Inez C
Bought by
Moe Inez C and Fields Beverly J
Source: Public Records

Range of Values:

--
Value Increase
--
Percent Increase
--
Adjusted for Inflation
Collateral Analytics

Collateral Analytics Collateral Analytics AVMs (Automated Valuation Model) employ a number of statistical approaches combined with neighborhood-specific comparable selection guarantees the most up-to-date and precise valuations.

Not Available

Collateral Analytics does not have data for the current month. Please view the chart for historical values.

ICE

ICE Mortgage Technology ICE Mortgage Technology’s AVM (Automated Valuation Model) is a state-of-the-art online residential property valuation tool that provides a quick and accurate estimate of the value of almost any home in the U.S.

Not Available

ICE Mortgage Technology does not have data for the current month. Please view the chart for historical values.

First American

First American First American Data & Analytics’ next-generation AVM combines unrivaled data assets with a blended ensemble of valuation models to produce highly accurate, reliable valuations you can trust.

Not Available

First American does not have data for the current month. Please view the chart for historical values.

Quantarium

Quantarium Quantarium’s valuation service, repeatedly proven the industry’s most accurate and comprehensive, is supercharged with a self-learning and auto-tuning AI engine that continually becomes smarter and more accurate as it processes daily inputs from the industry’s leading RE data lake.

Not Available

Quantarium does not have data for the current month. Please view the chart for historical values.

Average Value
Not Available
List Price
Sold Price
Create a Home Valuation Report for This Property
The Home Valuation Report is an in-depth analysis detailing your home's value as well as a comparison with similar homes in the area

Home Values in the Area

Source: Public Records

Average Home Value in this Area

Source: Public Records

Purchase History

Date Type Sale Price Title Company
Grant Deed $650,000 Fidelity National Title Compan
Corporate Deed $217,500 Old Republic Title Company
Trustee Deed $143,100 None Available
Interfamily Deed Transfer -- Stewart Title Bats
Grant Deed $450,000 First American Title Co
Grant Deed $450,000 First American Title
Grant Deed $160,000 Old Republic Title Company
Interfamily Deed Transfer -- Old Republic Title Company
Interfamily Deed Transfer -- Old Republic Title Company
Interfamily Deed Transfer -- Old Republic Title Company
Interfamily Deed Transfer -- --
Quit Claim Deed -- --
Source: Public Records

Mortgage History

Date Status Loan Amount Loan Type
Open $585,000 New Conventional
Previous Owner $197,707 FHA
Previous Owner $105,000 Unknown
Previous Owner $368,000 Stand Alone Refi Refinance Of Original Loan
Previous Owner $360,000 Stand Alone First
Previous Owner $321,131 Seller Take Back
Previous Owner $128,000 Purchase Money Mortgage
Source: Public Records

Property History

Date Event Price List to Sale Price per Sq Ft
02/17/2026 02/17/26 Sold $650,000 +1.7% $694 / Sq Ft
02/06/2026 02/06/26 Pending -- -- --
02/02/2026 02/02/26 For Sale $639,000 0.0% $683 / Sq Ft
01/20/2026 01/20/26 Pending -- -- --
01/09/2026 01/09/26 For Sale $639,000 -- $683 / Sq Ft
Source: Bay Area Real Estate Information Services (BAREIS)

Tax History

Year Tax Paid Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. Land Improvement
2025 $4,221 $273,179 $153,231 $119,948
2024 $3,919 $267,824 $150,227 $117,597
2023 $3,919 $262,574 $147,282 $115,292
2022 $3,792 $257,427 $144,395 $113,032
2021 $3,664 $252,380 $141,564 $110,816
2019 $3,491 $244,896 $137,366 $107,530
2018 $3,336 $240,095 $134,673 $105,422
2017 $3,286 $235,388 $132,033 $103,355
2016 $3,062 $230,774 $129,445 $101,329
2015 $3,035 $227,308 $127,501 $99,807
2014 $2,991 $222,856 $125,004 $97,852
Source: Public Records

Agents Affiliated with this Home

  • J

    Seller's Agent in 2026

    Josiah Wotila

    Coldwell Banker Realty

    (707) 206-4500

    1 in this area

    8 Total Sales

    Josiah Wotila
    Section Image
  • Tina Kaur-campbell

    Buyer's Agent in 2026

    Tina Kaur-campbell

    Keller Williams Realty

    (510) 717-3281

    1 in this area

    77 Total Sales

    Tina Kaur-campbell
    Section Image
See All Agents

Map

Source: Bay Area Real Estate Information Services (BAREIS)

MLS Number: 326001763

Bay Area Real Estate Information Services (BAREIS)

APN: 375-131-003-2

California Contra Costa County Martinez 94553

823 Shell Ave, Martinez, CA

Sold

Detached

Disclaimer: Certain information contained herein is derived from information provided by parties other than Homes.com. All information provided is deemed reliable, but is not guaranteed to be accurate and should be independently verified.

Bay Area Real Estate Information Services (BAREIS) Listing information deemed reliable but not guaranteed. Copyright 2026 Bay Area Real Estate Information Services, Inc. All Right Reserved.

Nearby Homes
Your Personal Tour Guide

Ask me questions while you tour the home.