Cosgriff House is a minimalist house located in Sydney, Australia, designed by Christopher Polly. A substantial lower ground room is inserted under the original fabric, harnessing the fall in the site towards the rear. It extends deeply beneath the existing dwelling and outwards towards the garden to transform the original dwelling in combination with the re-crafted rear of the ground floor above. (9)

Cosgriff House is a minimalist house located in Sydney, Australia, designed by Christopher Polly. A substantial lower ground room is inserted under the original fabric, harnessing the fall in the site towards the rear. It extends deeply beneath the existing dwelling and outwards towards the garden to transform the original dwelling in combination with the re-crafted rear of the ground floor above.