1431 Shell Ct is a 2,233 square foot house on a 7,800 square foot lot with 3 bedrooms and 3 bathrooms. - it last sold on July 11, 2016 for $575,000. Based on Redfin's Discovery Bay data, we estimate the home's value is $850,705.
Single-familyProperty Type
1979Year Built
7,800 sq ftLot Size
$381Est. Price/Sq.Ft.
3 car garageParking
Source:Public Records
Redfin Estimate
$850,705
$276K since sold in July 2016$4,000 since October
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 12.8% lower than the average sale price ($976K) of 6 comparable homes.
bridgeMLS, Bay East AOR, or Contra Costa AOR #29006132
Aug 18, 2001
Listing Removed
—
Public Records
Oct 29, 1999
Sold
$277,500
$124/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #11025855
Sep 1, 1999
Listing Removed
—
bridgeMLS, Bay East AOR, or Contra Costa AOR #29025134
Sep 1, 1999
Listing Removed
—
Public Records
Dec 1, 1979
Sold
$130,000
$58/sq ft
Year
Property tax
Land + Additions
Assessment*
2026
$9,766 (+7.5%)
$236,756 + $443,921
$680,677
2025
$9,089 (+5.1%)
$236,756 + $443,921
$680,677
2024
$8,644 (+1.5%)
$232,114 + $435,217
$667,331
2023
$8,518 (+1.6%)
$227,563 + $426,684
$654,247
2022
$8,387 (+2.3%)
$223,101 + $418,318
$641,419
2021
$8,197 (+0.3%)
$218,727 + $410,116
$628,843
2020
$8,174 (+1.1%)
$214,439 + $402,075
$616,514
2019
$8,086 (+3.9%)
$212,241 + $397,953
$610,194
2018
$7,786 (+2.0%)
$208,080 + $390,150
$598,230
2017
$7,633 (+32.5%)
$200,000 + $375,000
$575,000
2016
$5,760 (+8.6%)
$200,000 + $375,000
$575,000
2015
$5,306 (+2.0%)
$200,000 + $188,000
$388,000
2014
$5,200 (+1.0%)
$135,404 + $212,511
$347,915
2013
$5,150 (+21.6%)
$135,404 + $212,511
$347,915
2012
$4,236 (−12.3%)
$134,793 + $211,551
$346,344
2011
$4,830 (+3.6%)
$103,135 + $161,865
$265,000
2010
$4,662 (+1.2%)
$129,559 + $203,337
$332,896
2009
$4,608 (+3.6%)
$128,591 + $201,818
$330,409
2008
$4,447
$128,897 + $202,298
$331,195
Tax history for 1431 Shell Ct
Year
Property tax
Land + Additions
Assessment*
2026
$9,766 (+7.5%)
$236,756 + $443,921
$680,677
2025
$9,089 (+5.1%)
$236,756 + $443,921
$680,677
2024
$8,644 (+1.5%)
$232,114 + $435,217
$667,331
2023
$8,518 (+1.6%)
$227,563 + $426,684
$654,247
2022
$8,387 (+2.3%)
$223,101 + $418,318
$641,419
2021
$8,197 (+0.3%)
$218,727 + $410,116
$628,843
2020
$8,174 (+1.1%)
$214,439 + $402,075
$616,514
2019
$8,086 (+3.9%)
$212,241 + $397,953
$610,194
2018
$7,786 (+2.0%)
$208,080 + $390,150
$598,230
2017
$7,633 (+32.5%)
$200,000 + $375,000
$575,000
2016
$5,760 (+8.6%)
$200,000 + $375,000
$575,000
2015
$5,306 (+2.0%)
$200,000 + $188,000
$388,000
2014
$5,200 (+1.0%)
$135,404 + $212,511
$347,915
2013
$5,150 (+21.6%)
$135,404 + $212,511
$347,915
2012
$4,236 (−12.3%)
$134,793 + $211,551
$346,344
2011
$4,830 (+3.6%)
$103,135 + $161,865
$265,000
2010
$4,662 (+1.2%)
$129,559 + $203,337
$332,896
2009
$4,608 (+3.6%)
$128,591 + $201,818
$330,409
2008
$4,447
$128,897 + $202,298
$331,195
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Apr 6, 2017 • Final
Building - residential solar photovoltaic
Install a roof-mounted solar photovoltaic system on a residential building.
Electrical
Solar
Apr 26, 2016 • Final
Building/residential/al/alteration
Remove and replace windows and sliding glass doors in the same size and location.
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: 10
Exterior
Property Information
Subdivision Name: SUBDIVISION 4086
Living Sq. Ft: 2,233
Ground Floor Sq. Ft: 1,146
Building Sq. Ft: 2,233
# of Stories: 2
Legal Description: TRACT 4086 LOT 100 EX MR
Parking & Garage Information
Garage/Parking Sq. Ft: 611
Lot Information
# of Buildings: 1
Land Sq. Ft: 7,800
Legal Lot Number: 100
Acres: 0.1791
Zoning Code: F-1
County Use Description: SINGLE FAMILY
Location Information
Parcel Location Influence: Lake
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 3.0
Sq. Ft.: 2,233
Stories: 2.0
Lot Size: 7,800 square feet
Style: Single Family Residential
Year Built: 1979
Year Renovated: 2000
County: Contra Costa County
APN: 0041910415
Home facts updated by county records on Oct 30, 2026
Around this home
Schools
K - 12
Preschool & daycare
Discovery Bay Elementary School
Public K-5 • Assigned • 0.2mi
8/10
Excelsior Middle School
Public 6-8 • Assigned • 2.8mi
4/10
Liberty High School
Public 9-12 • Assigned • 5.5mi
7/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
6/10 Flood Factor
Estimated 71-79% chance of a flood reaching the building in the next 30 years
1/10 Fire Factor
Unlikely to be in a wildfire in next 30 years
6/10 Heat Factor
7 days above 102° expected this year, 15 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
9/10 Air Factor
20 unhealthy days expected this year, 21 days in 30 years
Provided by First Street
Historical weather
Discovery Bay, CA • 94505
Average low and high temperatures (°F)
59
39
63
44
72
49
73
49
82
55
89
58
92
60
95
62
88
62
75
54
64
46
56
43
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 12.6 hours in
June and 4.7 hours in December, placing it above the
U.S. average for solar exposure.
12.6 hrs
4.7 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$809,000 – $979,000
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