Episodes

Kevin O'Connor revisits Walpole as a dated ranch, and a new ADU becomes a multigenerational forever home for a military family and grandparents. Richard Trethewey explains shared utilities, a propane boiler, and hydronic air handlers that serve both spaces. Tom Silva meets with builders Kevin Smith and Jared Ruggieri to discuss the challenges of being the first to build an ADU in Walpole.

Kevin O'Connor visits a North Georgia factory to see how luxury vinyl plank flooring is made, then checks its installation in the Walpole ADU. Zack Dettmore helps build durable MDF wainscoting in the mudroom, and a smart lighting system with wired and wireless switches illuminates the exterior of the renovated ranch and new ADU.

Kevin O'Connor digs into the ADU's progress with a code-rated firewall, insulation, and fire damper in a shared interior wall, plus Richard Trethewey sees the new HVAC and water filtration systems. Later, Kevin and Tom Silva tour a compact Dorchester ADU located in the attic.

Zack Dettmore installs vinyl siding with trim details that give it a more traditional look, then tours a Pennsylvania factory where a modular Accessory Dwelling Unit is framed, wired, finished, and prepared for delivery. Back in Walpole, Richard Trethewey explains a ceiling cassette HVAC system for the basement, and the crew installs a three-panel sliding glass door.

Kevin O'Connor helps demo a wall to expand the primary space. Tom Silva works through interior and exterior wall framing details. Richard Trethewey reviews shared utilities and plumbing layout for the Accessory Dwelling Unit, and a new underground electrical service takes shape. Kevin heads to Atlanta to see how different ADUs are designed and built - some even from former free standing garages.

In Walpole, Kevin O'Connor tours Dan and Jill's 1971 ranch as they plan for Jill's parents to move into a new 900-square-foot ADU, the town's first. Tom Silva tracks new foundations and a rebuilt garage, Richard Trethewey weighs options for updated HVAC and utilities, and Jenn Nawada meets Jill and the children in the backyard to talk about their outdoor wishes.