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Listing broker remarks

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. The information contained herein has been obtained through sources deemed reliable but cannot be guaranteed as to its accuracy. Buyers are encouraged to do their own due diligence through independent verification.— Berkshire Hathaway HomeServices Robert Paul Properties

Key details

  • 3,178 sq ft
  • 11,761 lot sq ft
  • 3 beds
  • 3 baths
  • 1858 built
  • $928 / sq ft
  • $23,604 2026 taxes
MLS #
7⁠3⁠5⁠1⁠3⁠1⁠9⁠1⁠
Last updated
Address
12 Cockachoiset Lane
Town
Barnstable, MA
ZIP
02655
Deed (Bk/Pg)
14270 / 146

Historic designations

MACRIS Inventory
Crosby, Herbert F. House · includes BRN.AM

What this means for buyers →

Map

Neighborhood: Barnstable

National Historic Landmark

Federally designated as nationally significant — the highest U.S. historic recognition. Section 106 review applies to federal undertakings affecting the property.

National Register

Listed on the National Register of Historic Places. Owners may qualify for the 20% federal Historic Rehabilitation Tax Credit on certified rehabilitation work.

State Register

Listed on the Massachusetts State Register of Historic Places.

Local Historic District

Inside a Local Historic District. Exterior changes visible from a public way require approval from the local historic district commission.

Local Landmark

Individually designated by the town as a local landmark. Exterior alterations require commission approval.

MACRIS Inventory

Documented in MACRIS, the state historic inventory. Informational only — no regulatory constraints.

Article 85 (Boston)

Subject to Boston Article 85 demolition-delay review, which can pause demolition of buildings 50+ years old for up to 90 days.

Ch. 91 Waterways License

An active MassDEP permit for a dock, pier, seawall, or other structure on or over a Massachusetts waterway. Many older licenses are not digitized; this record is provided for reference only.

Massachusetts Great Pond

A Great Pond under M.G.L. Ch. 91 — the Commonwealth retains public rights to fish and navigate these state-designated waters. Private docks and other waterfront structures require a Waterways License from MassDEP.

Likely Great Pond

The MLS listing describes this property as being on a Great Pond, which would be a state-designated water body under M.G.L. Ch. 91. GIS data did not independently confirm the pond name — verification needed.