About Us



Embedded in the Hamptons community for decades, Building Principal J Andreassi is proud of his family’s dedication to modernizing the Hamptons- through planning, building and philanthropy. Owner of Pert Construction and now co-principal at Andreassi Development, J has been building homes, commercial and institutional projects in the Hamptons and on Long Island for over 35 years. His son, J.B. Andreassi got his start with Related Companies in Manhattan back in 2015 by working in their new development division. Recently J.B. has moved back to the Hamptons to team up with his father and his brother to start the Development arm of the company now called Andreassi Development. The teams success is built on three pillars: the quality of product, speed of their builds and their strong relationships with their sub-contractors and town officials. Chase Andreassi (son of J and brother to J.B.), is the lead project manager, and oversees all on-site relationships and executions.

The company has been serving the community of the Hamptons from Westhampton Beach to Montauk and North Fork, for over three decades. Throughout his time at the company, the team’s most cherished part of the process has been creating something new. Helping clients build forever homes where they and their families can create loving memories is something the company will never take for granted. 



Described as consistent, accommodating, flexible, reliable, and fair by his clients, the team provides excellent service with integrity and speed. Connections and relationships with community members, such as town supervisors and sub-contractors, help JB, Chase and their team achieve those results. The team is proudest of their high level of repeat business, which is thanks to their 100% client satisfaction and retention. Thrilled to work with all members of the community, Andreassi Development is innovative, persistent, and well-connected. 

The Andreassi Building team has deep connections to the Hamptons in terms of building and development, as well as philanthropy work. Dedicated not only to his clients but to the community at large, the Andreassi family are true locals and have been rooted in the area for nearly six decades. Sabrosa, the family-owned Mexican restaurant, for example, has given away nearly $100k in donations to local charities since it opened six years ago. Between the area’s beaches, wineries, local farms, boating opportunities, and breathtaking sunsets, JB and the team are elated to call the Hamptons home. It has become their passion and mission, to marry the traditional way of building with the innovative new modern age architecture and build style, that has become extremely popular in the Hamptons over the last decade.


Work With Us

The team will go the extra mile to make sure their clients have a comfortable, customized, and enjoyable experience when looking to purchase or sell their home or land in one of the most beautiful and unique places in the world.