Open House 10/10 11am - 12:30pm
12 Cockachoiset Lane
Osterville, MA, 02655 $ 2,950,000
Bedrooms3 Baths3.0 Sq 3,178 Monthly Estimate*
$ 20,375
for $2,950,000 with 3 bedrooms and 3 full baths. This 3,178 square foot home was built in 1858 on a lot size of 0.27.
Located in the heart of Osterville - one of Cape Cod's most desirable seaside villages along Nantucket Sound - 12 Cockachoiset, known as the iconic ''Windmill House,'' offers a distinctive blend of coastal charm and architectural character. Recognized for its unique two-story windmill adorned with seaside murals, the home features a balcony with water views and serves as a memorable focal point of this special property. The main living spaces are designed for comfort and gathering, highlighted by a generous great room with a custom fireplace that opens to a covered patio and private side yard. A well-appointed kitchen adjoins the dining room, while the first floor also includes a bedroom with attached sitting room, laundry, and multiple inviting outdoor living areas. Upstairs, the primary suite is anchored by its own fireplace, private bath, and walk-in closet. An additional sitting room with balcony access and a third bedroom complete the second level, offering flexible space for guests and relaxation. Ideally located just moments from Osterville Village, this property enjoys close proximity to boutiques, dining, and nearby beaches, while also being near some of the area's most renowned marinas, including Nauticus Marina, Crosby Yacht Yard, and Oyster Harbors Marine - offering convenient access to premier boating and waterfront amenities. The adjacent property at 30 Cockachoiset Lane is also available for sale (MLS 22601972). Together, the properties offer a rare opportunity to create a side-by-side coastal compound, with a demonstrated history of significantly strong, high-value rentals and private gatherings.
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Open House
10/10/2026 11:00 AM - 12:30 PM
12 Cockachoiset Lane Osterville, MA
* Some states or local ordinances may prohibit Open Houses at this time, please confirm with your Weichert agent or local rep to confirm
FeaturesGeneralHeating Natural Gas
Cooling Central Air
Roof Shingle
Appliances Dishwasher Microwave Gas Range Water Heater
Garage Spaces 2
Patio/Porch Features Deck Patio
Architectural Style Other
Construction Materials Shingle Siding
Year Built 1858
Stories Count 2
Property Subtype Single Family Residence
Tax Year 2026
Waterfront Features Waterview
County Barnstable
Property Type Residential
Attached Garage false
Garage Y/N true
Total Rooms 7
Full Baths 3
Status Active
Directions Bridge Street to Cockachoiset Lane
City Osterville
MLS Area Barnstable
Lot Size Units Acres
Lot Size Square Feet 11761
Tax Annual Amount 23604
Showing Instructions Robert Kinlin 508.648.2739 rkinlin@robertpaul.com or Donna Aucoin 508.737.0465 daucoin@robertpaul.com. Please give 24-48 hours notice for showings. Best times are 11am-2:30pm.
Building Area Units Square Feet
Standard Status Active
Tax Assessed Value 2894800
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InteriorInterior Amenities Pantry Walk-In Closet(s)
Basement Full
Flooring Wood
Total Fireplaces 2
Air Conditioning Y/N true
Heating Y/N true
Half Baths 0
Laundry Features Electric Dryer Hookup Washer Hookup
Total Bedrooms 3
Total Baths 3
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ExteriorExterior Amenities Outdoor Shower
Parking Features Detached Garage Door Opener Storage Off Street Gravel
Lot Features Cleared Level Views
Water Source Public
Total Parking 2
Lot Size Area 0.27
Building Area Total 3178
Lot Size Acres 0.27
Waterfront Y/N false
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* Excluded FeaturesList ByRobert B KinlinListing Agent
Berkshire Hathaway Homeservices Robert Paul PropertiesBroker
rkinlin@robertpaul.comEmail
Affordability Calculator
- Monthly Principal & Interest
- $20,375
- Monthly Property Taxes
- $1,967
- Monthly Home Insurance
- --
Default based on a 30-year fixed rate of 7.375% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
Learn more about how to save NearbySingle family listings in Osterville, MA
Average List Price $4,899,243
Percent of Sale Price 66%
About Osterville, MA 3,556 Population
-11% Since 2002
$ 73,497 Median Income
54.53 Median Age
14% Households with Children
Trends Information provided by ATTOM Data Solutions.
0 Elementary School
0 Middle School
Unknown High School High School
Pricing History| Date | Price | Price Change | Description |
|---|
| 8/11/2026 | $2,950,000 | | Listed Price |