Off Market Feb 2026 for $650K

$700,903

Est. refi paymentEst. refi $4,679/mo

•

936

sq ft

823 Shell Ave, Martinez, CA 94553

About this home

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.

Single-familyProperty Type

1956Year Built

$749Est. Price/Sq.Ft.

1 garage spacesParking

Listed by Josiah Wotila •DRE #02162016 • Coldwell Banker Realty

•817-637-8062 (agent)

•josiah.wotila@cbrealty.com (agent)

Bought with Tina Kaur-Campbell •DRE #01996066 • Keller Williams Realty

Redfin checked: 3 minutes ago

•Source:BAREIS #326001763

Redfin Estimate

$700,903

$51K since sold in February 2026$4,000 since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 10.7% higher than the average sale price ($633K) of 6 comparable homes.

SOLD MAY 26, 2026
$588,000
A
2 beds2 baths973 sq ft
2266 Monterey Ave, Martinez, CA 94553
SOLD JUL 8, 2026
$575,000
B
3 beds1 bath1,134 sq ft
2110 Pomona Ave, Martinez, CA 94553
SOLD MAY 5, 2026
$625,000
C
3 beds1 bath1,056 sq ft
847 Shell Ave, Martinez, CA 94553
SOLD BY REDFIN JUL 28, 2026
$680,000
D
3 beds1 bath943 sq ft
634 Teresa St, Martinez, CA 94553
SOLD JUL 15, 2026
$675,000
E
2 beds1 bath916 sq ft
2001 Boynton Ave, Martinez, CA 94553
SOLD AUG 3, 2026
$655,000
F
3 beds2 baths1,175 sq ft
854 Shell Ave, Martinez, CA 94553

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Earn from this home

Sell

$148,596

Est. take-home

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Refinance

Est. cash available

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Rent

$2,640/mo

Redfin rental estimate

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Market trends in 94553, CA

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

100.1%

+0.1% MoM

Median sale price

$800K

$7K MoM

Avg. days on market

20d

2 days MoM

Recently sold homes

125

21 MoM

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NEW 1 DAY AGO
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$770,000
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OPEN SAT, 1PM TO 4PM
$1,300,000
4 beds3.5 baths2,377 sq ft
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See all

Provided by Redfin

Sale history for 823 Shell Ave

Date

Event

Price

BAREIS #326001763

Feb 17, 2026

Sold

$650,000

$694/sq ft

Feb 6, 2026

Pending

—

Feb 2, 2026

Relisted

—

Jan 21, 2026

Contingent

—

Jan 9, 2026

Listed

$639,000

$683/sq ft

bridgeMLS, Bay East AOR, or Contra Costa AOR #40521982

Jan 2, 2012

Sold

$217,500

$232/sq ft

Jun 13, 2011

Pending

—

May 2, 2011

Listed

$220,000

$235/sq ft

bridgeMLS, Bay East AOR, or Contra Costa AOR #40092822

Aug 19, 2005

Sold

$450,000

$481/sq ft

Aug 5, 2005

Listing Removed

—

Jul 9, 2005

Listed

$449,900

$481/sq ft

Public Records

Jun 17, 2005

Sold

$450,000

$481/sq ft

bridgeMLS, Bay East AOR, or Contra Costa AOR #29003461

May 28, 1999

Sold

$160,000

$171/sq ft

May 9, 1999

Listing Removed

—

Feb 20, 1999

Listed

$169,900

$182/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$4,221 (+4.3%)

$156,295 + $122,346

$278,641

2024

$4,046 (+3.2%)

$153,231 + $119,948

$273,179

2023

$3,919 (+3.3%)

$150,227 + $117,597

$267,824

2022

$3,792 (+3.5%)

$147,282 + $115,292

$262,574

2021

$3,664 (+2.2%)

$144,395 + $113,032

$257,427

2020

$3,584 (+2.7%)

$141,564 + $110,816

$252,380

2019

$3,491 (+4.6%)

$140,113 + $109,680

$249,793

2018

$3,336 (+1.5%)

$137,366 + $107,530

$244,896

2017

$3,286 (+7.3%)

$132,033 + $103,355

$235,388

2016

$3,062 (+0.9%)

$132,033 + $103,355

$235,388

2015

$3,035 (+1.5%)

$129,445 + $101,329

$230,774

2014

$2,990 (+23.8%)

$125,004 + $97,852

$222,856

2013

$2,416 (+13.9%)

$125,004 + $97,852

$222,856

2012

$2,121 (−17.1%)

$96,198 + $75,302

$171,500

2011

$2,559 (+13.2%)

$82,736 + $64,764

$147,500

2010

$2,260 (−16.8%)

$99,407 + $80,593

$180,000

2009

$2,717 (−41.9%)

$84,220 + $68,280

$152,500

2008

$4,680

$107,415 + $87,085

$194,500

Tax history for 823 Shell Ave

Year

Property tax

Land + Additions

Assessment*

2025

$4,221 (+4.3%)

$156,295 + $122,346

$278,641

2024

$4,046 (+3.2%)

$153,231 + $119,948

$273,179

2023

$3,919 (+3.3%)

$150,227 + $117,597

$267,824

2022

$3,792 (+3.5%)

$147,282 + $115,292

$262,574

2021

$3,664 (+2.2%)

$144,395 + $113,032

$257,427

2020

$3,584 (+2.7%)

$141,564 + $110,816

$252,380

2019

$3,491 (+4.6%)

$140,113 + $109,680

$249,793

2018

$3,336 (+1.5%)

$137,366 + $107,530

$244,896

2017

$3,286 (+7.3%)

$132,033 + $103,355

$235,388

2016

$3,062 (+0.9%)

$132,033 + $103,355

$235,388

2015

$3,035 (+1.5%)

$129,445 + $101,329

$230,774

2014

$2,990 (+23.8%)

$125,004 + $97,852

$222,856

2013

$2,416 (+13.9%)

$125,004 + $97,852

$222,856

2012

$2,121 (−17.1%)

$96,198 + $75,302

$171,500

2011

$2,559 (+13.2%)

$82,736 + $64,764

$147,500

2010

$2,260 (−16.8%)

$99,407 + $80,593

$180,000

2009

$2,717 (−41.9%)

$84,220 + $68,280

$152,500

2008

$4,680

$107,415 + $87,085

$194,500

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Public record

Public record
Permits

Beds

Baths

Stories

Lot width

—

Lot depth

—

Lot size

4,750 Sq. Ft.

Year renovated

1970

Sq. Ft.

936

Year built

1956

Style

Single Family Residential

County

Contra Costa County

APN

3751310032

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jul 13, 2026.

Jan 30, 2010 • Final

Building - residential mechanical

Work on a furnace and flue.

HVAC

Apr 10, 2009 • Final

Building/rrip/single family/na

Work on a single-family home.

Remodel

Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.

Property details

Parking

Parking & Garage Information
Parking Total: 3
Parking Features: Garage Facing Front
Garage Spaces: 1
Driveway Sidewalks: Paved Sidewalk, Unpaved

Interior

Bathroom Information
# of Bathrooms (Total): 1
# of Bathrooms (Full): 1

Bedroom Information
# of Bedrooms (Total): 3

Heating & Cooling
Cooling: Ceiling Fan(s)
Heating: Central, Other

Interior Features
Appliances: Dishwasher, Free Standing Gas Range, Free Standing Refrigerator
Flooring: Granite, Other
Interior Features: Formal Entry
Laundry Features: Electric, In Garage
# of Stories: 1

Room Information
Room Types: Bonus Room, Living Room, Possible Guest
Family Room Features: Other
Kitchen Features: Granite Counter, Kitchen/Family Combo
Living Room Features: Other
Levels: One
Main Level: Bedroom(s), Full Bath(s), Garage, Kitchen

Exterior

Exterior Features
Allows Horses: No
Fencing: Fenced, Wood
Roof: Composition

Pool Information
Has Private Pool: No
Has Spa: Yes
Spa Features: Spa/Hot Tub Personal

Property Information
Property Faces: East
ADU 2nd Unit: No
Property Type: Residential
Property Sub Type: Single Family Residence

Lot Information
Lot Features: See Remarks

Utilities

Utilities Information
Utilities: Natural Gas Available
Sewer: Public Sewer

Location

HOA Information
Association YN: No

School Information
School District County: Contra Costa

Location Information
Area: Martinez

Community Information
Senior Community: No

Public facts

Beds: 3
Baths: 1.0
Sq. Ft.: 936
Stories: 1.0
Lot Size: 4,750 square feet
Style: Single Family Residential
Year Built: 1956
Year Renovated: 1970
County: Contra Costa County
APN: 3751310032

Home facts updated by county records on Jul 13, 2026

Around this home

Schools

Morello Park Elementary School

Public K-5 • Assigned • 1.4mi

9/10

Martinez Junior High School

Public 6-8 • Assigned • 0.5mi

7/10

Alhambra Senior High School

Public 9-12 • Assigned • 0.6mi

8/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

5/10 Fire Factor

3% chance of being in a wildfire in next 30 years

4/10 Heat Factor

7 days above 97° expected this year, 15 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

8/10 Air Factor

13 unhealthy days expected this year, 13 days in 30 years

Provided by First Street

Historical weather

Martinez, CA • 94553

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 11.8 hours in June and 4.8 hours in December, placing it above the U.S. average for solar exposure.

11.8 hrs

4.8 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$666,000 – $807,000

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Home values near 823 Shell Ave

Data from public records.

Address	Redfin Estimate
824 Shell Avenue, Martinez, CA 3 Beds \| 2 Baths \| 1823 Sq. Ft.	$805,120
855 Shell Avenue, Martinez, CA 2 Beds \| 2 Baths \| 849 Sq. Ft.	$574,099

Address	Redfin Estimate
847 Shell Avenue, Martinez, CA 3 Beds \| 1 Baths \| 1056 Sq. Ft.	$719,652
830 Shell Avenue Unit A, Martinez, CA 2 Beds \| 1 Baths \| 1097 Sq. Ft.	$593,371

Address	Redfin Estimate
841 Shell Avenue, Martinez, CA 3 Beds \| 1 Baths \| 1216 Sq. Ft.	$633,003
817 Shell Avenue, Martinez, CA 3 Beds \| 1 Baths \| 936 Sq. Ft.	$593,702

Property information provided by BAREIS when last listed in 2026. This data may not match . Learn more.

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About this home

Redfin Estimate

Earn from this home

Market trends in 94553, CA

Sale history for 823 Shell Ave

Tax history for 823 Shell Ave

Public record

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 94553

Home values near 823 Shell Ave

More real estate resources