1185 Shell Ave is a 1,715 square foot house on a 5,175 square foot lot with 3 bedrooms and 2 bathrooms. Based on Redfin's Martinez data, we estimate the home's value is $699,044.
Single-familyProperty Type
1978Year Built
5,175 sq ftLot Size
$408Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$699,044
$11K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 6.5% higher than the average sale price ($657K) 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
$2,793 (+4.0%)
$7,036 + $144,933
$151,969
2024
$2,686 (+4.2%)
$6,899 + $142,092
$148,991
2023
$2,578 (+4.2%)
$6,764 + $139,306
$146,070
2022
$2,475 (+4.4%)
$6,632 + $136,575
$143,207
2021
$2,371 (+3.2%)
$6,502 + $133,898
$140,400
2020
$2,297 (+3.5%)
$6,375 + $131,273
$137,648
2019
$2,220 (+5.0%)
$6,310 + $129,927
$136,237
2018
$2,114 (+1.8%)
$6,187 + $127,380
$133,567
2017
$2,076 (+7.1%)
$5,948 + $122,435
$128,383
2016
$1,938 (+1.1%)
$5,948 + $122,435
$128,383
2015
$1,917 (+1.6%)
$5,832 + $120,035
$125,867
2014
$1,886 (+0.9%)
$5,633 + $115,916
$121,549
2013
$1,868 (+3.0%)
$5,633 + $115,916
$121,549
2012
$1,815 (+1.1%)
$5,608 + $115,393
$121,001
2011
$1,795 (+0.5%)
$5,499 + $113,131
$118,630
2010
$1,786
$5,392 + $110,913
$116,305
2009
$1,785 (+5.0%)
$5,352 + $110,085
$115,437
2008
$1,701
$5,365 + $110,347
$115,712
Tax history for 1185 Shell Ave
Year
Property tax
Land + Additions
Assessment*
2025
$2,793 (+4.0%)
$7,036 + $144,933
$151,969
2024
$2,686 (+4.2%)
$6,899 + $142,092
$148,991
2023
$2,578 (+4.2%)
$6,764 + $139,306
$146,070
2022
$2,475 (+4.4%)
$6,632 + $136,575
$143,207
2021
$2,371 (+3.2%)
$6,502 + $133,898
$140,400
2020
$2,297 (+3.5%)
$6,375 + $131,273
$137,648
2019
$2,220 (+5.0%)
$6,310 + $129,927
$136,237
2018
$2,114 (+1.8%)
$6,187 + $127,380
$133,567
2017
$2,076 (+7.1%)
$5,948 + $122,435
$128,383
2016
$1,938 (+1.1%)
$5,948 + $122,435
$128,383
2015
$1,917 (+1.6%)
$5,832 + $120,035
$125,867
2014
$1,886 (+0.9%)
$5,633 + $115,916
$121,549
2013
$1,868 (+3.0%)
$5,633 + $115,916
$121,549
2012
$1,815 (+1.1%)
$5,608 + $115,393
$121,001
2011
$1,795 (+0.5%)
$5,499 + $113,131
$118,630
2010
$1,786
$5,392 + $110,913
$116,305
2009
$1,785 (+5.0%)
$5,352 + $110,085
$115,437
2008
$1,701
$5,365 + $110,347
$115,712
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
May 5, 2014 • Final
Building - residential electrical
Upgrade the main electrical panel.
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
Heating & Cooling
Air Conditioning Type: Wall Unit
Heating Type: Forced Air
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 6
Exterior
Exterior Information
Physical Condition: Average
Foundation Type: Raised W/Crawlspace
Building Style Type: Conventional
Building Construction Quality: Average
Exterior Wall: Wood
Property Information
Subdivision Name: MARTINEZ LAND CO 05
Living Sq. Ft: 1,715
Ground Floor Sq. Ft: 1,715
Building Sq. Ft: 1,715
# of Stories: 1
Legal Description: MARTINEZ LAND #5 POR LOT 2 BLK 20
Parking & Garage Information
Parking Type: Garage/Carport
Garage/Parking Sq. Ft: 720
Lot Information
# of Buildings: 1
Land Sq. Ft: 5,175
Legal Lot Number: 2
Legal Block Number: 20
Acres: 0.1188
Zoning Code: R-6
County Use Description: SINGLE FAMILY
Utility Information
Sewer Type: Public
Water Service Type: Public
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 2.0
Sq. Ft.: 1,715
Stories: 1.0
Lot Size: 5,175 square feet
Style: Single Family Residential
Year Built: 1978
Year Renovated: 1980
County: Contra Costa County
APN: 3750320123
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 • 0.7mi
7/10
Alhambra Senior High School
Public 9-12 • Assigned • 0.9mi
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
$665,000 – $804,000
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