Proposed conversion of existing coach house to ancillary accommodation including rooflights to north-east and south-west roof elevations, replacement windows and doors to north-west and south-west elevations and 1 new window to north-west gable end; and alteration of existing loggia including new doors to existing openings on west elevation, replacement of existing windows and doors and blocking up of existing door to east elevation and 1 new window to north elevation