Trust, Integrity, and Collaborative

Dedicated to quality building & development. MJS Building & Development is a full-service construction company building some of the Hamptons and Eastern Long Island’s most admired homes.

At MJS Builds, we collaborate closely with our clients, architects, and designers to ensure that every project achieves the highest standards of quality and craftsmanship. Our commitment to responsible and sustainable construction practices means that we stay up-to-date on the latest methods and materials.


James Stones

As one of the founders and principals, James is passionate about building beautiful living spaces built around trust, integrity, and longstanding collaborative relationships with clients. James brings his knowledge of traditional and progressive construction techniques to build homes and spaces that reflect luxury and quality.


James believes in the importance of leaving lasting impressions, not just with the homes he builds but also in the communities in which he builds them. He can be found supporting various youth and adult football and athletic clubs outside of running MJS.

Mike Stones

As with our other principal, Mike is passionate about building strong client relationships and fostering a culture centered around transparency and integrity. He brings his vast knowledge of construction practices to managing each project, large and small. With MJS’s trusted team, Mike leads all design and construction stages with a proactive approach and an eye for detail.


Beyond the job site, Mike is active in building youth and adult athletic programs, supporting local football clubs, and strengthening communities.