1425 Shell Ave is a 2,590 square foot multi-family home on a 5,550 square foot lot with 6 bedrooms and 2 bathrooms. Based on Redfin's Martinez data, we estimate the home's value is $745,112.
Multi-familyProperty Type
1938Year Built
5,550 sq ftLot Size
$288Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$745,112
$3,000 since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 0.7% higher than the average sale price ($740K) of 6 comparable homes.
As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2025
$2,781 (+3.0%)
$16,466 + $35,730
$52,196
2024
$2,699 (+7.0%)
$16,144 + $35,030
$51,174
2023
$2,523 (+6.7%)
$15,828 + $34,344
$50,172
2022
$2,365 (+7.2%)
$15,518 + $33,671
$49,189
2021
$2,207 (+6.6%)
$15,214 + $33,011
$48,225
2020
$2,070 (+6.2%)
$14,916 + $32,364
$47,280
2019
$1,949 (+5.1%)
$14,764 + $32,033
$46,797
2018
$1,855 (+2.6%)
$14,475 + $31,405
$45,880
2017
$1,809 (+5.9%)
$13,914 + $30,187
$44,101
2016
$1,708 (+4.8%)
$13,914 + $30,187
$44,101
2015
$1,629 (+2.2%)
$13,642 + $29,596
$43,238
2014
$1,594 (+6.8%)
$13,175 + $28,581
$41,756
2013
$1,493 (+2.7%)
$13,175 + $28,581
$41,756
2012
$1,453 (+0.5%)
$13,116 + $28,452
$41,568
2011
$1,446 (+0.3%)
$12,859 + $27,895
$40,754
2010
$1,442 (−2.5%)
$12,607 + $27,349
$39,956
2009
$1,478 (+4.8%)
$12,513 + $27,145
$39,658
2008
$1,411
$12,543 + $27,210
$39,753
Tax history for 1425 Shell Ave
Year
Property tax
Land + Additions
Assessment*
2025
$2,781 (+3.0%)
$16,466 + $35,730
$52,196
2024
$2,699 (+7.0%)
$16,144 + $35,030
$51,174
2023
$2,523 (+6.7%)
$15,828 + $34,344
$50,172
2022
$2,365 (+7.2%)
$15,518 + $33,671
$49,189
2021
$2,207 (+6.6%)
$15,214 + $33,011
$48,225
2020
$2,070 (+6.2%)
$14,916 + $32,364
$47,280
2019
$1,949 (+5.1%)
$14,764 + $32,033
$46,797
2018
$1,855 (+2.6%)
$14,475 + $31,405
$45,880
2017
$1,809 (+5.9%)
$13,914 + $30,187
$44,101
2016
$1,708 (+4.8%)
$13,914 + $30,187
$44,101
2015
$1,629 (+2.2%)
$13,642 + $29,596
$43,238
2014
$1,594 (+6.8%)
$13,175 + $28,581
$41,756
2013
$1,493 (+2.7%)
$13,175 + $28,581
$41,756
2012
$1,453 (+0.5%)
$13,116 + $28,452
$41,568
2011
$1,446 (+0.3%)
$12,859 + $27,895
$40,754
2010
$1,442 (−2.5%)
$12,607 + $27,349
$39,956
2009
$1,478 (+4.8%)
$12,513 + $27,145
$39,658
2008
$1,411
$12,543 + $27,210
$39,753
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Jul 1, 2004 • Final
Building - residential electrical
Upgrade the electrical service.
Electrical
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: 11
Exterior
Property Information
Subdivision Name: SHELL CITY
Living Sq. Ft: 2,590
Ground Floor Sq. Ft: 1,680
Building Sq. Ft: 2,590
# of Stories: 1
Legal Description: SHELL CITY LOT 9
Parking & Garage Information
Garage/Parking Sq. Ft: 770
Lot Information
# of Buildings: 1
Land Sq. Ft: 5,550
Legal Lot Number: 9
Acres: 0.1274
Depth Footage: 111
Front Footage: 50
Zoning Code: D-1
County Use Description: DUPLEX
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 6
Baths: 2.0
Sq. Ft.: 2,590
Stories: 1.0
Lot Size: 5,550 square feet
Style: Multi-Family (2-4 Unit)
Year Built: 1938
Year Renovated: —
County: Contra Costa County
APN: 3780920082
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
70
49
77
53
80
55
80
56
87
59
84
59
78
56
64
49
56
46
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
$708,000 – $857,000
Reach more buyers when you sell with Redfin. Save up to $7,451 in fees.3 minutes to get started.