We’re thrilled to share some exciting news—not just for our team, but for the entire town of Centerville.
749 South Main Street has officially closed for $6.5 million, setting a new all-time residential sales record for Centerville, MA.
Known as Sandcastle, this iconic estate is more than just a remarkable property—it’s a piece of Cape Cod history.
A Storied Past, A Prestigious Future
Before Cape Cod was on the radar of vacationers across the country, Helen J. Quinn—heiress to the Grand Union grocery fortune—fell in love with a special stretch of land along the Centerville River. In the early 20th century, she purchased nearly 20 acres here and built her personal retreat, later dubbed Sandcastle for its distinctive sandy-hued English stucco exterior.
From its inception, the estate was built for gracious living and grand entertaining. Its design is both elegant and intuitive: formal spaces at the entry, and a sun-drenched line of living areas stretching the length of the water side, offering breathtaking 180-degree views of the Craigville River and Nantucket Sound.
Space, Privacy, and Coastal Luxury
The main home boasts eight bedrooms and countless places to gather, while a separate four-bay carriage house includes a full 1,400-square-foot guest apartment—perfect for hosting family, friends, or staff. A deep-water dock and “the best boathouse on the river” offer immediate access to Nantucket or a quick jaunt to Long Beach by boat.
In 2024, the sellers invested in a brand-new sea wall and elevated the backyard, ensuring this beloved estate will continue to stand proudly for generations to come.
A Milestone for Centerville—and for Our Team
This sale is more than a number. It’s a benchmark for the luxury market in Centerville, and it represents the kind of trust, collaboration, and deep community knowledge that defines everything we do at The Cape House Team.
It was an honor to steward this legacy property into its next chapter, and we are so proud to have helped both our sellers and the new owners move forward with confidence.
To the new Sandcastle family: welcome. You’re not just buying a home—you’re becoming part of Cape Cod history.
And to everyone dreaming of their own place on the Cape: we’re here when you’re ready.
