2301 W Shell St is a 924 square foot house on a 4,550 square foot lot with 2 bedrooms and 1 bathroom. - it last sold on December 15, 1982 for $30,000. Based on Redfin's Martinez data, we estimate the home's value is $556,740.
Single-familyProperty Type
1922Year Built
4,550 sq ftLot Size
$603Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$556,740
$527K since sold in December 1982$10K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 7.5% higher than the average sale price ($518K) of 5 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Jan 30, 2010 • Final
Building/residential/rp/repair
Repair the roof on a residential building.
Roofing
Jan 30, 2010 • Final
Building - residential foundation repair
Perform repairs on a foundation.
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
Interior
Room Information
# of Rooms: 5
Exterior
Property Information
Subdivision Name: MARTINEZ LAND CO 06
Living Sq. Ft: 924
Ground Floor Sq. Ft: 924
Building Sq. Ft: 924
# of Stories: 1
Legal Description: MARTINEZ LAND #6 POR LOT 6 & 7 BLK 32
Lot Information
# of Buildings: 1
Land Sq. Ft: 4,550
Legal Lot Number: 6
Legal Block Number: 32
Acres: 0.1045
Zoning Code: R-6
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 2
Baths: 1.0
Sq. Ft.: 924
Stories: 1.0
Lot Size: 4,550 square feet
Style: Single Family Residential
Year Built: 1922
Year Renovated: 1972
County: Contra Costa County
APN: 3750410080
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Morello Park Elementary School
Public K-5 • Assigned • 1.3mi
9/10
Martinez Junior High School
Public 6-8 • Assigned • 0.6mi
7/10
Alhambra Senior High School
Public 9-12 • Assigned • 0.7mi
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
4/10 Fire Factor
2% 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)
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43
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45
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49
77
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80
56
87
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84
59
78
56
64
49
56
46
Jan
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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
$529,000 – $641,000
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