This Old House is headed to a century-old New England cottage in Jamestown, Rhode Island, to restore the home's charm while also making it energy efficient. Homeowners Dana and Donald have a net-zero energy goal for the new home for their family of four, with state-of-the-art energy efficiency and environmental sensitivity at top of mind. For the first half of our 40th season, Sweenor Builders will be renovating the current structure as well as creating an addition that will double the size of the home. The biggest challenge? Making the two halves behave as a single, uniformly efficient and healthy whole.