A renovation of a fraying 1965 A-frame chalet near Peconic Bay, this project is an exercise in making the most out of existing square footage by creating a new level of bedrooms in an existing basement and blasting out the main level of the house to admit light and create volumetric drama. Location: Sag Harbour, Long Island. Click here for Doon Architecture’s website. Photographs © Lincoln Barbour, 2016