The north end of Australia's largest shopping mall was rebuilt between 2014 and 2017. A new & improved Entertainment Zone was enclosed with a glass gridshell roof; the first such structure built in Australia. When all construction dust settled, the mall encompassed a whopping 2,260,400 lettable square feet, with a retail roster of 550 stores and services. There were now parking accommodations for 10,000 autos.
Photo from http://futurefood.com.au


The "Stage 40" renovation installed 2 new food facilities. A Dining Terrace was situated on a new Level 1 (actually a third floor), with the Food Central complex filling a reconstructed section of Lower Ground Level space.
Photo from http://futurefood.com.au


We continue our "Chaddy" excursion with a circa-2019 Ground Level store map. Before the most recent remodeling, the mall consisted of 2 floors; the Lower and Ground Levels. With the newly-rebuilt Entertainment Zone (bounded in dark gray), there are now 4; Lower Ground Level, Ground Level, Level 1 and Level 2. Moreover, the mega mall's 6 car parks are now designated by the letters "A" through "F". 
Original graphic from http://www.chadstoneshopping.com.au 


A "Stage 38" project enlarged the existing Myer (or "F") Car Park and added the 11-storey Chadstone Tower 1, an 85 million dollar (18,300 square foot) office facility. An adjacent 13-story (248-room) hotel is in the final planning stages. 
Photo from http://www.colliers.com.au