The houses located at 4 and 6 Wiston Gardens, Double Bay are heritage-listed former residences and estate with vineyard and now residences located at 4 and 6 Wiston Gardens, Double Bay, New South Wales, Australia. It was designed by Professor Leslie Wilkinson and built from 1932 to 1936. It is also known as Wiston Gardens; Sweetapple (#4); Parkinson (#6).

The Sir John Sulman Medal for Public Architecture is an architectural award presented by the New South Wales chapter of the Australian Institute of Architects since 1932. The medal is sometimes referred to as the Sulman Award and now recognises excellence in public buildings in either New South Wales or in the Australian Capital Territory. Before the advent of the Wilkinson Award in 1961 it was on occasions presented to domestic projects.