What is significant? The Bunyip Post Office, designed by the PWD and constructed in 1925, at 21 High Street, Bunyip.
How is it significant? The Bunyip Post Office is of local historic and aesthetic significance to Cardinia Shire.
Why is it significant? Historically, the Bunyip Post Office is a significant public building in the Bunyip township and has been from the time of its opening in December 1925. It is a local landmark and is associated with Bunyip's development as a centre for the surrounding farming district. It also illustrates the development of postal services by the Commonwealth Government after Federation. (RNE criteria A.4, D.2) Aesthetically, the Bunyip Post Office is an important contributory building within the historic Bunyip town centre precinct. (RNE criteria E.1)