The 28-year-old actor has been living in the US but could move to London, away from the mutual circles of his and ex-girlfriend Kristen Stewart's, reported the Daily Mirror.
"She is behind Rob's decision to move back. He's serious about her. They are really happy and he seems keen to make a fresh start, away from the mutual circles he shared with his ex-girlfriend Kristen (Stewart) in LA. They've both got busy schedules but they're planning to move to London together in the foreseeable future," a source said.