3730 Stone Rd is a 3,480 square foot house on a 0.42 acre lot with 2 bedrooms and 3 bathrooms. - it last sold on April 14, 1989 for $105,000. Based on Redfin's Bethel Island data, we estimate the home's value is $843,255.
Single-familyProperty Type
1943Year Built
0.42 acresLot Size
$242Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$843,255
$738K since sold in April 1989$24K since October
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 4.3% lower than the average sale price ($881K) 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
Jul 15, 2025 • Final
Building - residential re-roof
Tear off and replace the roof on a two-story single-family home and attached garage with composition shingles and synthetic underlayment. A cool roof or cool roof exception is required at final inspection.
Roofing
Nov 5, 2024 • Final
Permit submittal
Install new retrofit windows.
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: 8
Exterior
Property Information
Subdivision Name: BETHEL SUB
Living Sq. Ft: 3,480
Ground Floor Sq. Ft: 2,080
Building Sq. Ft: 3,480
# of Stories: 2
Legal Description: SANDMOUND PARK LOT 42 & TR ADJ
Parking & Garage Information
Garage/Parking Sq. Ft: 1,412
Lot Information
# of Buildings: 1
Land Sq. Ft: 18,508
Legal Lot Number: 42
Acres: 0.4249
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: 3.0
Sq. Ft.: 3,480
Stories: 2.0
Lot Size: 0.42 acres
Style: Single Family Residential
Year Built: 1943
Year Renovated: 1995
County: Contra Costa County
APN: 0311320212
Home facts updated by county records on Oct 30, 2026
Around this home
Schools
K - 12
Preschool & daycare
Summer Lake Elementary
Public K-5 • Assigned • 1.7mi
5/10
Delta Vista Middle School
Public 6-8 • Assigned • 3.7mi
2/10
Freedom High School
Public 9-12 • Assigned • 5.5mi
5/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
9/10 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
5 days above 101° expected this year, 10 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
86
60
90
62
85
62
74
54
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
$802,000 – $970,000
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