Accessory Dwelling Unit’s  & Design Build Services

Custom ADU’s built Your Way—With One Team from Start to Finish

Every home tells a story—and yours should be written exactly the way you want it. At Amex Construction, we combine design and construction. That means one team, one contract, and one clear process from the first sketch to the final walk-through. Whether you’re building a new home, a custom addition, or an in-law suite, our design-build approach saves time, avoids miscommunication, and keeps your budget under control.

Interior of a room under construction with framing, pink insulation on the walls, three windows, and a metal duct or vent along one wall.
A spacious kitchen with white cabinets, a kitchen island, stainless steel appliances, and hardwood flooring, illuminated by ceiling lights.

Amex Construction helps Families expand, upgrade, and build with confidence.

Building an ADU in Massachusetts isn’t about picking from a catalog—it’s about creating a living space that fits Your Family and Property. From site prep and foundations to finishes and energy efficiency, Amex Construction builds ADU’s that are durable, beautiful, and uniquely yours.

New gray two-story house with black railing on front porch, surrounded by green grass, tall trees, and a body of water in the background, with construction cones on the right side.

Lets Start your ADU Conversation today!

Learn more in our Blog!
Modern bathroom with a glass-enclosed shower featuring marble tiles, a built-in niche, a rainfall showerhead, and a handheld shower. The bathroom also includes a toilet and beige walls.
A small, gray and white wooden shed with a pitched roof and double wooden doors, situated in a backyard with a gravel pathway and a wooden fence.
A blue three-story house with white trim on a well-maintained lawn, surrounded by trees, near a body of water. There are construction cones and equipment nearby.
Ready to Design and Build Your Dream ADU?