Dune-house is an off-the-grid beach house designed for the shores of Cape Cod, MA. It is fully self-sufficient through geothermal and solar energy systems where efficiency is maximized through burrowing, an ancient construction technique of using earth as insulator. Despite being partially underground, its main living spaces are spacious, bright and open to amazing views. Dune-house is a powerful prototype for the future of single-family housing in 21st century.