“In the context of the proposed development of number 15, it is clear from the plans and elevations … that the proposed development will have new first floor windows in the front and rear elevations which will be much closer to the boundary, will overlook the front and rear gardens where they are not currently overlooked. In relation to the front garden this is less important as the front garden can be currently seen from the road in any event, but in relation to the rear garden, which is not currently overlooked, the development [would] substantially diminish the privacy enjoyed by number 11. The covenant is therefore of substantial benefit to the objector in relation to the proposed development.”
“whether a practical benefit is substantial is not simply a matter of arithmetic, and will depend on the circumstances…. we do not consider 5% to be a rule of thumb, or threshold, by which we should be bound in this or any future case.”