A long cypress-clad volume that projects from a hillside in rural Massachusetts forms this home, designed by US studio O’Neill Rose Architects for a nature-loving couple.Undermountain by O'Neill Rose Architects

Called Undermountain, the house is located in Sheffield, a town in the Berkshires region in western Massachusetts.

A popular getaway destination for city dwellers, the picturesque area is known for its tree-covered hills, sparkling lakes and swathes of farmland.Undermountain by O'Neill Rose Architects

The architects “took a simple house to the extreme” in order to strengthen the building’s relationship to its setting.