 The grounds retain the original garage, a private Second World War air-raid shelter, and early terracing.Included in the heritage register boundary is an early set of steps located on the adjacent block to the eastern of El Nido.These steps, which lead to Kingsford Smith Drive, were associated with the suburban villa known as Braeside, and have been shared by the residents of 19 and 25 Hillside Crescent since the late 1920s.