3170 Stone Rd is a 733 square foot house on a 8,700 square foot lot with 2 bedrooms and 1 bathroom. - it last sold on August 18, 2009 for $61,500. Based on Redfin's Bethel Island data, we estimate the home's value is $508,051.
Single-familyProperty Type
1940Year Built
8,700 sq ftLot Size
$693Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$508,051
$447K since sold in August 2009$7,000 since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 11.3% lower than the average sale price ($573K) 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 new fiberglass shingles on a residential building.
Roofing
Jan 30, 2010 • Final
Residential mechanical-electrical-plumbing combo
Perform electrical, plumbing, and mechanical work on a residential building.
Electrical
HVAC
Plumbing
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
Heating Fuel Type: Gas
Heating Type: Floor Furnace
Room Information
# of Rooms: 4
Exterior
Exterior Information
Physical Condition: Average
Foundation Type: Slab
Building Style Type: Ranch
Building Construction Quality: Average
Exterior Wall: Stucco
Property Information
Subdivision Name: BETHEL SUB
Living Sq. Ft: 733
Ground Floor Sq. Ft: 733
Building Sq. Ft: 733
# of Stories: 1
Legal Description: BETHEL SUBN LOT 7 BLK 1 EX MR
Parking & Garage Information
# of Parking Spaces: 2
Parking Type: Carport
Garage / Carport Type: Carport
Lot Information
# of Buildings: 1
Land Sq. Ft: 8,700
Legal Lot Number: 7
Legal Block Number: 1
Acres: 0.1997
Zoning Code: F-1
County Use Description: SINGLE FAMILY
Utility Information
Sewer Type: Public
Water Service Type: Public
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 2
Baths: 1.0
Sq. Ft.: 733
Stories: 1.0
Lot Size: 8,700 square feet
Style: Single Family Residential
Year Built: 1940
Year Renovated: 1940
County: Contra Costa County
APN: 0311020085
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Summer Lake Elementary
Public K-5 • Assigned • 2.1mi
5/10
Delta Vista Middle School
Public 6-8 • Assigned • 3.2mi
2/10
Freedom High School
Public 9-12 • Assigned • 5.4mi
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
2/10 Fire Factor
0.00% chance of being in a wildfire in next 30 years
6/10 Heat Factor
7 days above 101° expected this year, 14 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
$483,000 – $585,000
Reach more buyers when you sell with Redfin. Save up to $5,081 in fees.3 minutes to get started.