De bodde i Diagon Alley, ovanför Weasleys Wizard Wheezes.
Mrs. Weasley berättar för Harry att han kommer att ha Fred och Georges rum till sig själv, eftersom de har flyttat över sin butik.
“Bed,’ said an undeceived Mrs Weasley at once. ‘I’ve got Fred and George’s room all ready for you, you’ll have it to yourself.’
‘Why, where are they?’
‘Oh, they’re in Diagon Alley, sleeping in the little flat over their joke shop as they’re so busy,’ said Mrs Weasley. ‘I must say, I didn’t approve at first, but they do seem to have a bit of a flair for business! Come on, dear, your trunk’s already up there.” - Harry Potter and the Half-Blood Prince, Chapter 5 (An Excess of Phlegm)