These sibling houses are located high on a headland with stunning views out to sea. Built into the 1 in 7 slope, the site establishes a simple, successful passive sustainable approach: thermal mass, solar gain and natural ventilation each being exploited, with no sense of claustrophobia resulting from the semi-buried forms.

With very low energy consumption, consistent, elegant detailing and construction, these houses are great examples of how thoughtful, modest and economic architecture can create a passive sustainable living environment.