1101 Shell Ave is a 1,064 square foot house on a 4,982 square foot lot with 3 bedrooms and 1 bathroom. Based on Redfin's Martinez data, we estimate the home's value is $600,106.
Single-familyProperty Type
1945Year Built
4,982 sq ftLot Size
$564Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$600,106
$8,000 since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 2.7% lower than the average sale price ($617K) 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
$1,672 (+3.3%)
$16,466 + $37,368
$53,834
2024
$1,618 (+6.1%)
$16,144 + $36,636
$52,780
2023
$1,526 (+5.8%)
$15,828 + $35,918
$51,746
2022
$1,441 (+6.2%)
$15,518 + $35,214
$50,732
2021
$1,357 (+5.4%)
$15,214 + $34,524
$49,738
2020
$1,287 (+5.3%)
$14,916 + $33,848
$48,764
2019
$1,222 (+6.0%)
$14,764 + $33,501
$48,265
2018
$1,153 (+2.4%)
$14,475 + $32,845
$47,320
2017
$1,127 (+6.8%)
$13,914 + $31,570
$45,484
2016
$1,055 (+1.6%)
$13,914 + $31,570
$45,484
2015
$1,038 (+2.0%)
$13,642 + $30,951
$44,593
2014
$1,018 (+1.3%)
$13,175 + $29,890
$43,065
2013
$1,005 (+2.8%)
$13,175 + $29,890
$43,065
2012
$978 (+0.7%)
$13,116 + $29,755
$42,871
2011
$971 (+0.4%)
$12,859 + $29,172
$42,031
2010
$967 (+0.6%)
$12,607 + $28,600
$41,207
2009
$961 (+7.2%)
$12,513 + $28,387
$40,900
2008
$897
$12,543 + $28,455
$40,998
Tax history for 1101 Shell Ave
Year
Property tax
Land + Additions
Assessment*
2025
$1,672 (+3.3%)
$16,466 + $37,368
$53,834
2024
$1,618 (+6.1%)
$16,144 + $36,636
$52,780
2023
$1,526 (+5.8%)
$15,828 + $35,918
$51,746
2022
$1,441 (+6.2%)
$15,518 + $35,214
$50,732
2021
$1,357 (+5.4%)
$15,214 + $34,524
$49,738
2020
$1,287 (+5.3%)
$14,916 + $33,848
$48,764
2019
$1,222 (+6.0%)
$14,764 + $33,501
$48,265
2018
$1,153 (+2.4%)
$14,475 + $32,845
$47,320
2017
$1,127 (+6.8%)
$13,914 + $31,570
$45,484
2016
$1,055 (+1.6%)
$13,914 + $31,570
$45,484
2015
$1,038 (+2.0%)
$13,642 + $30,951
$44,593
2014
$1,018 (+1.3%)
$13,175 + $29,890
$43,065
2013
$1,005 (+2.8%)
$13,175 + $29,890
$43,065
2012
$978 (+0.7%)
$13,116 + $29,755
$42,871
2011
$971 (+0.4%)
$12,859 + $29,172
$42,031
2010
$967 (+0.6%)
$12,607 + $28,600
$41,207
2009
$961 (+7.2%)
$12,513 + $28,387
$40,900
2008
$897
$12,543 + $28,455
$40,998
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Aug 25, 2005 • Final
Building - residential re-roof
Remove and replace the roof with composition shingles.
Roofing
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
Subdivision Name: MARTINEZ LAND CO 05
Living Sq. Ft: 1,064
Ground Floor Sq. Ft: 1,064
Building Sq. Ft: 1,064
# of Stories: 1
Legal Description: MARTINEZ LAND #5 4 18
Parking & Garage Information
Garage/Parking Sq. Ft: 240
Lot Information
# of Buildings: 1
Land Sq. Ft: 4,982
Legal Lot Number: 4
Legal Block Number: 18
Acres: 0.1144
Zoning Code: R-6
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 1.0
Sq. Ft.: 1,064
Stories: 1.0
Lot Size: 4,982 square feet
Style: Single Family Residential
Year Built: 1945
Year Renovated: 1947
County: Contra Costa County
APN: 3750310082
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 • 0.9mi
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
$571,000 – $691,000
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