EXCLUSIVE: Mark Wright and Michelle Keegan submit plans for VAST granny flat beside their £1.3m home... (and at 56sqm, the outhouse is bigger than the average LONDON FLAT!) Drawings have been submitted to Epping Forest District Council, which reveal that the annexe will have an ensuite bedroom with a cloakroom, kitchen, dining area and sitting area Plans were initially withdrawn last year for the 'demolition of an existing stable building' to build the one-bedroom annexe - however they have been reapplied over the past week The outhouse will stand at 56 sqm, which is bigger than the average London flat according to numbers from the Office Of National Statistics, which state City of London flats have a median value of 47sqm