"We should be back selling sliders and oysters by then. A limited offering of lunch and dinner, but not breakfast, should also be available at the delicatessen within a fortnight."
Brown said fire warning and safety systems at the restaurants - which employ about 100 staff - prevented more extensive damage.
"You spend a lot of money upfront on things like foam and ducting systems," he said "But when something like this happens you realise it was a very wise decision to do so, otherwise things could have been a lot worse."
Brown remained philosophical about the disruption.
"Thankfully no one was hurt," he said. "I am also grateful for the overwhelming support from our customers and other restaurants in the area while we have been getting back on our feet."