PHOTO: Harry Triguboff Photographer: Brendon Thorne/Bloomberg

Harry Triguboff is remarkably calm about Australia’s worst real estate slump in a generation considering he’s got more at stake than perhaps anyone on the planet.

“We have our ups and downs and we keep building,” Triguboff, 85, said in an interview from his office overlooking George Street, one of the busiest in Sydney. The developer, who’s worth $9.2 billion according to the Bloomberg Billionaires Index, plans to push on with expansion, even as the Sydney property market slides deeper into the doldrums.

“If prices fall, I’ll buy the land cheaper,” Australia’s second-richest person said with a wave of his hand. “As long as you don’t lose your cool. You have to look at things in the longer term.”