http://www.essendonairport.com.au/general/our-history
There is an interactive timeline on the above site. Tap on the point of interest to get some detail.
DFO was constructed in 2005.
July 22, 2015
Deputy Prime Minister officially announces Australia’s first Hyatt Place
Deputy Prime Minister Warren Truss MP – the Minister for Infrastructure and Regional Development officially announces Australia’s first Hyatt Place and an adjoining restaurant, Bar and Events Centre to open at Essendon Fields early 2017.
Warren Truss is looking very pleased in the image from 2015