1445 Shell Ave is a 893 square foot house on a 5,550 square foot lot with 2 bedrooms and 1 bathroom. Based on Redfin's Martinez data, we estimate the home's value is $483,163.
Single-familyProperty Type
1936Year Built
5,550 sq ftLot Size
$541Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$483,163
$2,000 since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 11.6% lower than the average sale price ($546K) 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 electrical
Perform a service change on the electrical system.
Electrical
Jul 2, 2009 • Final
Building/rrip/single family/na
Work on a duplex.
Addition
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: 6
Exterior
Property Information
Subdivision Name: SHELL CITY
Living Sq. Ft: 893
Ground Floor Sq. Ft: 893
Building Sq. Ft: 893
# of Stories: 1
Legal Description: SHELL CITY LOT 10
Parking & Garage Information
Garage/Parking Sq. Ft: 324
Lot Information
# of Buildings: 1
Land Sq. Ft: 5,550
Legal Lot Number: 10
Acres: 0.1274
Zoning Code: D-1
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 2
Baths: 1.0
Sq. Ft.: 893
Stories: 1.0
Lot Size: 5,550 square feet
Style: Single Family Residential
Year Built: 1936
Year Renovated: —
County: Contra Costa County
APN: 3780920074
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Las Juntas Elementary School
Public K-5 • Assigned • 1.4mi
5/10
Martinez Junior High School
Public 6-8 • Assigned • 0.7mi
7/10
Alhambra Senior High School
Public 9-12 • Assigned • 1.1mi
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)
60
43
62
45
70
49
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49
77
53
80
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80
56
87
59
84
59
78
56
64
49
56
46
Jan
Feb
Mar
Apr
May
Jun
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Aug
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Oct
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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
$460,000 – $556,000
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