This mews house built on sustainable principles is located on a square ( 13.0 x 13.0 m ) site in the rere garden of a large Edwardian house in South Dublin. The ground plan is analogous to an Islamic house with external garden courts inset within a regular enclosure, the internal space free flowing under an uninterrupted concrete soffit. Varieties of garden are planned for the external spaces; the roof is another planted landscape, with upstanding rooflights. External walls are made with coursed granite and cedar panels.