1030 Shell Ave is a 1,035 square foot house on a 2,300 square foot lot with 1 bedroom and 2 bathrooms. - it last sold on August 16, 1996 for $130,000. Based on Redfin's Martinez data, we estimate the home's value is $537,693.
Single-familyProperty Type
1939Year Built
2,300 sq ftLot Size
$520Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$537,693
$408K since sold in August 1996$1,000 since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 15.9% lower than the average sale price ($640K) of 6 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Mar 27, 2019 • Active
Building/residential/ad/single family addition
Add conditioned space to the attic to create a third-level office. Enclose the lower floor porch as part of the living area, install new windows, and rebuild the front entry gable roof. Replace exterior siding with stucco, rebuild stairs and the second-floor laundry room, and repair fire damage by replacing interior walls on the second floor.
Addition
Remodel
Nov 20, 2018 • Final
Building/residential/al/alteration
Repair fire damage and perform electrical work according to the provided plans. No mechanical or plumbing work is included.
Electrical
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: 7
Exterior
Property Information
Living Sq. Ft: 1,035
Ground Floor Sq. Ft: 828
Building Sq. Ft: 1,035
# of Stories: 2
Legal Description: T164PM27 PCL B
Parking & Garage Information
Garage/Parking Sq. Ft: 360
Lot Information
# of Buildings: 1
Land Sq. Ft: 2,300
Legal Lot Number: B
Acres: 0.0528
Zoning Code: R-6
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 1
Baths: 2.0
Sq. Ft.: 1,035
Stories: 2.0
Lot Size: 2,300 square feet
Style: Single Family Residential
Year Built: 1939
Year Renovated: 2019
County: Contra Costa County
APN: 3751710199
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 • 0.8mi
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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87
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78
56
64
49
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46
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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
$511,000 – $619,000
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