The son of a prominent Sydney nightclub owner has been convicted of sexually assaulting a young female in an alleyway behind the back of a King Cross nightspot run by his family.

Luke Andrew Lazarus will face a sentencing hearing this month, having been convicted of the attack on an 18-year-old woman behind SOHO on Victoria Street in Potts Point in May 2013.

Convicted of sexually assaulting an 18-year-old girl: Luke Lazarus. Credit:Facebook

Lazarus' father, Andrew Lazarus, is a part-owner of the club, as well as popular Bondi Junction hotel The Eastern.

During the trial it was heard that Luke Lazarus approached his victim, who was on her first night out in Sydney, on the club's dance floor.