In Peter Pan, it is first shown when the narrator gives the introduction. First the parents' room is shown. Next the nursery where John and Michael are playing is shown. After that the backyard is shown. When the adventure is over, the staircase is shown when George and Mary walk up to the nursery to check on the children. The house has three dormers on the roof; the rightmost one is where the nursery is located at the beginning of the film, but at the end it is located where the central dormer is.
It is possible that Wendy may have inherited the house from George and Mary Darling because this is the house in which she raises Jane and Daniel with her husband, Edward, in the critically-failed sequel.
Bloomsbury also makes an appearance in Once Upon a Time.