Tucked away on exclusive Onset Island, this rare 1-bedroom, 1-bath bungalow offers a chance to own a true hidden escape just minutes from the mainland—without ever crossing the Cape bridge. Set among just 52 homes on a private 12-acre island accessible only by boat, this property is surrounded by natural beauty, peaceful privacy, and the soothing sounds of island life. This is a rehab opportunity, ideal for the visionary buyer, investor, or handy homeowner ready to bring new life to a special property. Whether you're dreaming of creating a charming weekend retreat, a unique vacation rental, or your own off-the-grid coastal getaway, the potential here is undeniable.Opportunities like this don’t come around often—your island escape is waiting. This property is only accessible by boat.
Single-familyProperty Type
1950Year Built
2,652 sq ftLot Size
$74Price/Sq.Ft.
Listed by Selling South of Boston Team• Keller Williams Realty Colonial Partners
Listed by Keller Williams Realty Colonial Partners
Bought with Selling South of Boston Team• Keller Williams Realty Colonial Partners
Est. $3,211 per month, based on comparable rentals
Sale and tax history for 14 Old Colony Ave
Sale History
Tax History
Date
Event
Price
MLS PIN #73524471
Jun 28, 2026
Pending
—
Jun 25, 2026
Sold
$60,000
$74/sq ft
Jun 18, 2026
Contingent
—
May 27, 2026
Listed
$199,000
$245/sq ft
CCIMLS #21107309
Sep 4, 2019
Listing Removed
—
Aug 19, 2011
Listed
$249,000
$307/sq ft
CCIMLS #21803614
Aug 1, 2018
Sold
$379,000
$467/sq ft
Jun 3, 2018
Pending
—
May 22, 2018
Listed
$369,900
$456/sq ft
MLS PIN #72332046
Aug 1, 2018
Sold
$379,000
$467/sq ft
May 28, 2018
Pending
—
May 22, 2018
Listed
$369,900
$456/sq ft
+23
Beautiful Cape style home with fabulous curb appeal boasts open floor plan and lots of living space.. This 3 /4 bedroom, 3 full bath property features an updated eat in kitchen w/granite counters,white cabinets, stainless appliances, recess lighting, and hardwood flooring that opens up to living room and back deck for great entertaining flow. A den on the main level and first floor bedroom/or office. The second level has two large bedrooms and additional bedroom or sitting area/nursery off master. The lower level has so much extra bonus space with a huge game/play room with walk out to side yard. (Exercise & Storage room too!) Storage abounds on all levels. Neighborhood is located on dead end street with oversized tree-lined double lot. Convenient to bike /drive to the canal, play ground, tennis courts, & down town Buzzards Bay. Open House Saturday May 26th 11:00-12:00 Can't wait? Set up a Private viewing before if going away for the weekend. Priced to sell and make your move!
CCIMLS #21208098
Jan 29, 2013
Sold
$240,000
$296/sq ft
Sep 7, 2012
Listed
$254,900
$314/sq ft
MLS PIN #71431859
Jan 29, 2013
Sold
$240,000
$296/sq ft
Nov 5, 2012
Listing Removed
—
Sep 6, 2012
Listed
$254,900
$314/sq ft
Year
Property tax
Land + Additions
Assessment*
2023
$4,386 (+5.8%)
$171,800 + $326,000
$497,800
2022
$4,145 (+2.2%)
$152,000 + $258,800
$410,800
2021
$4,056 (+6.5%)
$138,400 + $238,200
$376,600
2020
$3,808 (+8.8%)
$137,000 + $217,600
$354,600
2019
$3,501 (+6.9%)
$137,000 + $196,100
$333,100
2018
$3,276 (+8.7%)
$124,000 + $186,800
$310,800
2017
$3,013 (+7.5%)
$122,800 + $169,700
$292,500
2016
$2,802 (+0.9%)
$109,900 + $165,900
$275,800
2015
$2,777
$109,900 + $165,900
$275,800
Public record
Public record
Zoning
Beds
4
Baths
3
Stories
2
Lot width
—
Lot depth
—
Lot size
0.59 Acres
Year renovated
2006
Sq. Ft.
1,596
Year built
1986
Style
Single Family Residential
County
Barnstable County
APN
2183804
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Jul 19, 2023.
R40
Residential District
To ensure continuance of a residential environment, with any development carefully related to environmental capacities and existing character
Permitted uses
Include but are not limited to:
Greenhouse / nursery
Housing-Single unit
Housing-Multiple units
Property details
Parking
Parking Information
Open Parking Spaces: 0
Interior
Master Bedroom Information
Level: Second
Bathroom Information
# of Bathrooms (Full): 1
Living Room Information
Level: First
Kitchen Information
Level: First
Laundry Information
Laundry Features: First Floor
Appliances
Appliances: Electric Water Heater, Range, Refrigerator, Washer/Dryer
Interior Features
# of Rooms (Total): 4
Exterior
Building Information
Building Area (Total): 812
Foundation Details: Slab
Construction Materials: Frame
Year Built Source: Public Records
Year Built Details: Actual
Color: Gray
Exterior Features
Roof: Shingle
Exterior Features: Outdoor Shower
Property Information
PropertySubType: Single Family Residence
Above Grade Finished Area: 812
ADU: N
Lot Information
Lot Size (Acres): 0.06
Lot Features: Flood Plain, Cleared, Level
Waterfront Features: Ocean, Walk to, 0 to 1/10 Mile To Beach, Beach Ownership(Private)
Financial
Tax Information
Tax Annual Amount: $3,491
Tax Year: 2025
Utilities
Utility Information
Utilities: for Electric Oven
Sewer: Inspection Required for Sale
Water Source: Public
Electric: 100 Amp Service
Heating & Cooling
Has Heating
Has Cooling
Heating: Electric Baseboard
Cooling: Window Unit(s)
Location
HOA Information
Has Association
Location Information
Directions: This property is only accessible by boat on Onset Island.
UnparsedAddress: 14 Old Colony Ave, Wareham MA 02532
Community Information
Senior CommunityYN: No
Public facts
Beds: 4
Baths: 3.0
Sq. Ft.: 1,596
Stories: 2.0
Lot Size: 0.59 acres
Style: Single Family Residential
Year Built: 1986
Year Renovated: 2006
County: Barnstable County
APN: 2183804
Home facts updated by county records on Jul 19, 2023
Other
Miscellaneous Information
Heat Zones: 1
Listing Information
StandardStatus: Closed
Around this home
47/100 Car-Dependent33/100 Somewhat bikeable
Schools
Places
Transit
Bourne Intermediate School
Public 3-5 • Assigned • 1.3mi
5/10
Bourne Middle School
Public 6-8 • Assigned • 1.4mi
6/10
Bourne High School
Public 9-12 • Assigned • 1.3mi
4/10
Provided by GreatSchools
Climate risks
1/10 Flood Factor
Minimal risk 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
7 days above 93° expected this year, 16 days in 30 years
8/10 Wind Factor
80% chance of strong winds in next 30 years
3/10 Air Factor
2 unhealthy days expected this year, 3 days in 30 years
Provided by First Street
Historical weather
Bourne, MA • 02532
Average low and high temperatures (°F)
35
23
36
23
46
34
55
42
64
52
75
62
79
68
77
62
72
59
62
48
53
38
41
28
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
91/ 100
Exceptional sunlight
Sunscore
There appears to be minimal shading by surrounding buildings, terrain, and vegetation.
10 hrs
5.8 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$241,000 – $292,000
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