1)
The additional storey, by virtue of its bulk and design would detract from the appearance of the building and the street scene, and would constitute an unwelcome and obtrusive feature to the detriment of the character and appearance of the Conservation Area, contrary to the Council's policies as set out in the Unitary Development Plan, in particular Policies CD38, CD52 and CD53.
2)
The additional storey, by virtue of its height and bulk, would result in additional enclosure to properties to the rear, in particular those immediately behind, to the detriment of levels of amenity presently enjoyed, contrary to the Council's policies as set out in the Unitary Development Plan, in particular Policy CD28.