3770 Stone Rd is a 780 square foot house on a 0.37 acre lot with 2 bedrooms and 1 bathroom. Based on Redfin's Bethel Island data, we estimate the home's value is $478,724.
Single-familyProperty Type
1945Year Built
0.37 acresLot Size
$614Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$478,724
$1,000 since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 0.9% lower than the average sale price ($483K) of 6 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 re-roof
Install a built-up roofing system.
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: 4
Exterior
Property Information
Subdivision Name: SANDMOUND PARK
Living Sq. Ft: 780
Ground Floor Sq. Ft: 780
Building Sq. Ft: 780
# of Stories: 1
Legal Description: SANDMOUND PARK LOT 47 & TR ADJ
Lot Information
# of Buildings: 1
Land Sq. Ft: 16,255
Legal Lot Number: 47
Acres: 0.3732
Zoning Code: F-1
County Use Description: SINGLE FAMILY
Location Information
Parcel Location Influence: Waterfront
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 2
Baths: 1.0
Sq. Ft.: 780
Stories: 1.0
Lot Size: 0.37 acres
Style: Single Family Residential
Year Built: 1945
Year Renovated: 1950
County: Contra Costa County
APN: 0311320261
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Summer Lake Elementary
Public K-5 • Assigned • 1.8mi
5/10
Delta Vista Middle School
Public 6-8 • Assigned • 3.7mi
2/10
Freedom High School
Public 9-12 • Assigned • 5.8mi
5/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
10/10 Flood Factor
Estimated 80%+ 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
5/10 Heat Factor
6 days above 101° expected this year, 11 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
10/10 Air Factor
21 unhealthy days expected this year, 23 days in 30 years
Provided by First Street
Historical weather
Bethel Island, CA • 94511
Average low and high temperatures (°F)
58
40
63
45
71
50
72
51
80
56
85
58
85
58
90
62
86
61
78
55
63
47
55
44
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 12.8 hours in
June and 4.6 hours in December, placing it above the
U.S. average for solar exposure.
12.8 hrs
4.6 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$455,000 – $551,000
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