"Avatar" star Sam Worthington's model girlfriend Lara Bingle has put her home up for sale, sparking rumours she is moving in with the actor.

Worthington has been dating the blonde beauty since last year, and they are rumoured to be taking their relationship to the next level by setting up home together now that Bingle has put her apartment in Sydney, Australia on the market, reports contactmusic.com.

The one-bedroom property, which overlooks the city's famous harbour, will be auctioned June 14 and is expected to fetch around $765,584.

Bingle bought the apartment in 2010 after splitting from her former fiance Michael Clarke.