 Largely in the Greek Revival style with elements of the Louis revival, the house's interiors have been recreated based on several inventories, notably an 1845 record of the house's contents and a list of furniture sold to the newly completed Government House, plus pieces known to have originated at the house that is now located at Camden Park or Brownlow Hill (originally the Macleays' country property near Camden, NSW).The large library contains several insect cases and a desk originally owned by Macleay, on loan from the Macleay Museum at Sydney University.Wall colours have been determined from paint scrapes that revealed the original colour schemes.