"The assembly system of this house, a framing steel structure with glass and concrete infill, continues Popov's extensive interest in post-war modernism. In particular, John Entenza's California Case Study House Program (1945-1966) forms the precedent for this project, along with an earlier Popov project, the Middle Head House (1999-2000) in Mosman, NSW.
A difficult corner site, and Castlecrag's strict planning and heritage regulations, made the architect's task a challenging one. In response, Popov designed a two storey volume comprised of two rectangular wings aligned at right angles and pushed to the southwest corner to allow for maximum northern light and exposure to the views.
A curved sandstone wall was placed adjacent to the street frontage, thus satisfying heritage requirements for a response to the local sandstone vernacular while also creating a private courtyard between the house and the street."