Serving New England and the surrounding areas



Property management and Real Estate Development

For more than 30 years, Stonegate has specialized in the development, management and leasing of commercial and residential properties throughout the Greater Boston area and beyond.

We currently manage over 750,000 sf of commercial and residential properties in our portfolio

Founded in 1988, and headquartered in Natick, MA for over 20 years, we have successfully developed over $190 million of residential and mixed-use properties.

Sean founded Stonegate Group in 1988 and, as its Chief Executive Officer, set out to form an elite team specialized in asset management, acquisitions, sales, finance, and development. With over 100 years of collective experience, Sean and his staff have afforded Stonegate the “real vision in real estate” that has guided the company to the success it currently enjoys.

Outside of his real estate endeavors, Sean has branched out into several other related businesses, including lending and joint ventures. With his previous experience as a former owner and franchisee of 25 Dunkin’/Baskin Robbins stores in the Mid-Atlantic region, he is now developing a growing portfolio of Dairy Queen stores throughout Massachusetts. He also owns and operates several solar companies in both Massachusetts and California.

A member of several philanthropic organizations, Sean serves on the Finance Committee of the Roman Catholic Archdiocese of Boston, the Board of Directors of the Eisenhower Medical Center, the Board of Trustees of the Nativity School of Worcester, the Strategic Committee for the Catholic Schools of Boston, and the Board of Directors of The 100 Club of Massachusetts. Past board positions have included the Meadowbrook School of Weston, the Museum of Science, and the Nativity School of New Bedford.

Sean and his wife currently divide their time between the California desert, Boston, and Maine. In his spare time, Sean enjoys golfing, tennis, and spending time on the farm. His three sons all live and work in the Boston area in the fields of real estate and development, and all together they make a great golf foursome.

Stonegate has the vision to see past the ordinary

With our 24 / 7 maintenance staff and exemplary customer service, Stonegate is a full-service organization, ​developing and managing projects from the ground up with the assurance that our tenants are our # 1 priority.

We create high quality, attractive, community-friendly environments that enrich and revitalize our area neighborhoods for both our commercial and residential tenants alike.

From our ground-breaking historic restoration of Penny Savings Bank in Boston to our mixed-use ​development projects at Milk Street in Downtown Westborough to our redevelopment projects in Downtown Natick.