4400 Windsweep Rd is a 1,027 square foot house on a 8,550 square foot lot with 2 bedrooms and 2 bathrooms. - it last sold on October 15, 2015 for $350,000. Based on Redfin's Bethel Island data, we estimate the home's value is $632,900.
Single-familyProperty Type
1967Year Built
8,550 sq ftLot Size
$616Est. Price/Sq.Ft.
Source:Public Records
$601,555
Updated Feb 28, 2026
Based on recent home sales selected by the homeowner.
Remove and replace a worn and damaged deck and footbridge using the existing footings.
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: 6
Exterior
Property Information
Subdivision Name: PLEASANTIMES SUB
Living Sq. Ft: 979
Ground Floor Sq. Ft: 686
Building Sq. Ft: 979
# of Stories: 1
Legal Description: PLEASANTIMES SUB LOT 65
Parking & Garage Information
Garage/Parking Sq. Ft: 393
Lot Information
# of Buildings: 1
Land Sq. Ft: 8,550
Legal Lot Number: 65
Acres: 0.1963
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: 2.0
Sq. Ft.: 1,027
Stories: 1.0
Parking Spaces: —
Basement: No
Accessible: No
Lot Size: 8,550 square feet
Style: Single Family Residential
Year Built: 1967
Year Renovated: 2022
County: Contra Costa County
APN: 0300200318
HOA Dues: —
Garage: No
Features: —
Home facts updated by owner on Feb 28, 2026
Around this home
Schools
Summer Lake Elementary
Public K-5 • Assigned • 2.2mi
5/10
Delta Vista Middle School
Public 6-8 • Assigned • 4.4mi
2/10
Freedom High School
Public 9-12 • Assigned • 6.5mi
5/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
8/10 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, 13 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
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
$602,000 – $728,000
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