This paper investigates copyright law and public architecture in the context of cultural institutions of Australia. Part 1 examines the case of the Sydney Opera House to illustrate the past position of architects in respect of copyright law. It goes onto consider the framework laid down by the Copyright Amendment (Moral Rights) Act 2000 (Cth) to resolve copyright disputes over moral rights and architecture. Part 2 considers the argument over the proposed renovations to the National Gallery of Australia between Dr Brian Kennedy and the original architect Colin Madigan. Part 3 finally deals with the allegations that Ashton Raggatt McDougall, the architects of the National Museum of Australia, plagiarised the designs of Daniel Libeskind for the Jewish Berlin Museum.