Ron WalkerCredit:Josh Robenstone
Victorian Opposition Leader Matthew Guy also tweeted his condolences.
"Ron Walker loved Melbourne and Victoria,"he wrote.
"His generosity touched many. His achievements helped put Victoria on the map. Australia is poorer for Ron's passing. My condolences to Barbara and all of his family."
Federal Opposition Leader Bill Shorten also echoed Mr Walker's contribution to Melbourne.
"Vale Ron Walker,a man of big ideas and great generosity,"he tweeted."Modern Melbourne owes much to his vision and drive."
Mr Walker was 78 years old.
He is survived by his wife Barbara,three children Jo,Campbell and Candice,and three grandchildren,Harry,Stella and Audrey.