Lorna Jane will take a 139 square metre lease at the centre, which also recently signed up French-inspired ladies fashion retailer Blue Illusion.
Mr Olde said Floreat Forum’s two health clubs made Lorna Jane a good fit for the centre.
“The centre is surrounded by playing fields, various ball courts and numerous sporting clubs and associations, making it an ideal location for women seeking Lorna Jane’s fashion forward active wear,” he said.
“Lorna Jane is a fantastic example of an Australian retailer focusing on a particular market segment and doing it really well.
“They have a great online strategy and are savvy to current retail trends, but moreover they are very tactile and engaging with their customers.”
The Floreat Forum Lorna Jane store will open on May 29.