Campden Hill Towers Ltd and another v Gardner and another what had been included in the demise; ‘the exterior’ of the flat therefore included the outside walls of
the flat (although they had been excluded from the demise), the outside of the inner party walls of the
flat, the outer sides of horizontal divisions between the demised flat and the flats above and below it,
and the structural framework and beams which directly supported the floors, ceiling and walls of the flat