Waterfront Cottage with Covered Boat Dock just minutes from fast water! Looking for your summer vacation weekender? You can fish right from your own front deck with this super cute studio cottage built over the water! Approximately 500 sqft with a large front deck and spacious dock area. Property also includes the original bath house on the lot, approximately 200 sqft. Sewer & water has been disconnected from the original bath house making it more of a storage shed but with the potential to restore or build a new home. Land Use is Single Family Residential/2 Or More SFR On One Parcel.
Single-familyProperty Type
1970Year Built
0.38 acresLot Size
$700Price/Sq.Ft.
Listed by Cathy Byrns•DRE #01447589• Boyd Real Estate, Inc.
Bought with Cathy Byrns•DRE #01447589• Boyd Real Estate, Inc.
Est. $1,474 per month, based on comparable rentals
Sale and tax history for 3712 Stone Rd
Sale History
Tax History
Date
Event
Price
bridgeMLS, Bay East AOR, or Contra Costa AOR #41133591
Jun 9, 2026
Sold
$350,000
$700/sq ft
May 19, 2026
Pending
—
May 5, 2026
Listed
$399,000
$798/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #40827325
Jul 25, 2018
Sold
$250,000
$500/sq ft
Jul 5, 2018
Pending
—
Jun 21, 2018
Listed
$298,000
$596/sq ft
COTTAGE AND LARGE DECK BUILT OUT OVER THE WATER. COVERED BOAT BERTH, YARD SHED. WALK UP TO THE TOP OF THE LEVEE TO VEIW COTTAGE AND DOCK. ONLY A MINUTE FROM FAST BOATING WATER. FRESHLY PAINTED AND READY FOR A SUMMER OF FUN.GREAT AREA FOR FISHING, BOATING AND ALL THE WATER SPORTS. YOU CAN FISH RIGHT FROM THE HOUSE.
bridgeMLS, Bay East AOR, or Contra Costa AOR #40625103
Jun 9, 2014
Listing Removed
—
May 8, 2014
Price Changed
*
Dec 21, 2013
Price Changed
*
Oct 11, 2013
Price Changed
*
Jul 29, 2013
Listed
*
Public Records
Sep 23, 2003
Sold
$292,000
$584/sq ft
Public Records
May 22, 2001
Sold
$175,000
$350/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$4,248 (+1.7%)
$227,563 + $56,889
$284,452
2024
$4,177 (+1.1%)
$223,101 + $55,774
$278,875
2023
$4,131 (+0.8%)
$218,727 + $54,681
$273,408
2022
$4,098 (+1.9%)
$214,439 + $53,609
$268,048
2021
$4,022 (+1.3%)
$210,235 + $52,558
$262,793
2020
$3,971 (+5.5%)
$206,113 + $51,528
$257,641
2019
$3,765 (−25.0%)
$204,000 + $51,000
$255,000
2018
$5,022 (+0.9%)
$200,000 + $50,000
$250,000
2017
$4,976 (+5.6%)
$198,456 + $159,255
$357,711
2016
$4,712 (−0.5%)
$198,456 + $159,255
$357,711
2015
$4,738 (+3.5%)
$194,565 + $156,133
$350,698
2014
$4,578
$187,889 + $150,776
$338,665
2013
$4,577 (+1.7%)
$187,889 + $150,776
$338,665
2012
$4,501 (+2.0%)
$187,040 + $150,095
$337,135
2011
$4,414 (+1.4%)
$183,373 + $147,152
$330,525
2010
$4,354 (+0.8%)
$179,778 + $144,267
$324,045
2009
$4,318 (+5.0%)
$178,435 + $143,189
$321,624
2008
$4,113
$178,859 + $143,530
$322,389
Public record
Public record
Permits
Beds
1
Baths
1
Stories
1
Lot width
—
Lot depth
—
Lot size
0.38 Acres
Year renovated
1970
Sq. Ft.
384
Year built
1944
Style
Single Family Residential
County
Contra Costa County
APN
0311310478
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Jul 13, 2026.
Jan 30, 2010 • Final
Building/residential/rp/repair
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
Parking
Parking Information
Parking Features: Parking Lot, Boat, No Garage, RV Possible
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Summer Lake Elementary
Public K-5 • Assigned • 1.7mi
5/10
Delta Vista Middle School
Public 6-8 • Assigned • 3.6mi
2/10
Freedom High School
Public 9-12 • Assigned • 5.7mi
5/10
Provided by GreatSchools
Climate risks
10/10 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
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
100/ 100
Exceptional sunlight
Sunscore
This home ranks in the top 26% for direct sun exposure in Bethel Island. There appears to be minimal shading by surrounding buildings, terrain, and vegetation.
10 hrs
6.5 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$479,000 – $580,000
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Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2026. This data may not match public records. Learn more.