Listed for $30m, a stunning estate on 3.66 acres overlooking Nantucket Sound

With unobstructed views of Nantucket Sound spanning to Martha’s Vineyard, 835 Sea View Ave. is the epitome of the vacationer’s dream — and the most expensive listing on the market on the Cape.

Listed at a whopping $30 million, the expansive estate in picturesque Osterville is located up a long, winding drive and tucked behind gates on 3.66 acres. With seven bedrooms and 14 baths (nine full, five half), the property, which is one large estate of two attached homes, combines the classic Cape aesthetic with waterfront glamour.

Built in 2011 by the current owner, the home features 15,500 square feet of living space spread out over the impeccably crafted four-bedroom main house and the connected three-bedroom guest house. Step inside, and you’ll find the sun-drenched main floor, which features a large, open living room with walls of floor-to-ceiling windows and doors. There’s a comfortable living area, as well as a formal dining room with a coffered ceiling, an ocean view, built-ins, and a marble fireplace. Turn left into the family room, which connects to a kitchen that offers a tray ceiling, recessed lighting, a walk-in and butler’s pantries, and high-end appliances, as well as two islands: both with sinks and one with bar seating for four. The windowed, semi-circular breakfast area, which sits under a ceiling shaped like a ship’s hull with exposed trusses, is the ideal spot to enjoy a cup of coffee on a sunny day overlooking the swimming pool.

The primary suite, which takes up an entire wing, is also on the first floor. It features a fireplace and doors that open up to a private terrace, as well as office space and two bathrooms: one crafted of dark wood,the other in blues and whites and featuring a circular tub overlooking the ocean. There are also two dressing rooms.

Listed for m, a stunning estate on 3.66 acres overlooking Nantucket Sound

“When you go to sleep, you can leave those doors open and hear the surf,” said Paul Grover, a founder of Berkshire Hathaway HomeServices Robert Paul Properties, who has the listing. “You see out to Martha’s Vineyard on a clear day.”

The upper level features three en-suite bedrooms, all connected via a wooden deck that spans the length of the home along the water side. On the lower level, you’ll find every amenity for entertaining guests, ranging from a home bar and a 5,000-bottle wine cellar to a golf simulator with custom murals of Pebble Beach and Augusta National. There is also a media-viewing area, as well as a massage room. The professionally designed gym on the ground level is also a connection to the guest house, which is as impeccably curated as the main property.

The outdoor space is ideal for summer living. Step outside to the expansive terrace, which is well-equipped for entertaining, with a fire pit, a kitchen, and a swimming pool. Step onto the impeccably manicured lawn, or continue to the steps that lead down to 280 feet of private sandy beach. The heated garage can accommodate seven vehicles and separate housing for staff.

The property is being offered fully furnished, so Grover suggested the new owner could move in almost immediately.

“It’s better than new because it’s been so beautifully maintained and cared for and loved. And it’s just in mint condition,” he said. “If somebody chose to purchase right away, they could be there in a month’s time.”

See more photos of the home below:

Subscribe to the Globe’s free real estate newsletter — our weekly digest on buying, selling, and design — at Follow us on Facebook, Instagram, and Twitter @globehomes.