WALPOLE — N.H. Gov. Maggie Hassan will visit a local sustainable home building company next week as the business readies for its national launch.

Unity Homes is a Walpole company that Tedd Benson of Bensonwood Homes founded with the support of a group of Bensonwood associate owners in 2012. Unity Homes designs energy-efficient homes that it manufactures at its Walpole factory, which can then be assembled on-site in as few as 30 to 35 days, according to a news release sent by a public relations firm on the company’s behalf.

Unity Homes’ national launch next month at the Greenbuild International Conference and Expo in Washington, D.C., will mark its stepping onto the national stage. At the event, Unity Homes will assemble a 1,620-square-foot demonstration home at the conference center within days.

“The Greenbuild Unity home demonstrates that innovation, affordability and energy efficiency are not mutually exclusive,” and when finished, the Greenbuild Unity home will meet LEED Platinum standards, according to the news release. Platinum is the highest of four Leadership in Energy & Environmental Design certification levels.

Hassan is scheduled to visit Unity Homes at 6 Blackjack Crossing Road in Walpole Tuesday at 9:30 a.m. and plans to meet with Benson and other key Unity Homes employees, as well as tour the Greenbuild Unity home in-progress. The event will not be open to the public.

Hassan, a Democrat, recently announced she’ll challenge U.S. Sen. Kelly Ayotte, R-N.H., for her Senate seat.