(1) A window or balcony must not project beyond the street alignment—
(a) more than 1m; and
(b) in any street less than 10m in width; and
(c) at a height less than 3m above the level of the footpath; and
(d) within 1·2m of the side boundary of an adjoining allotment.
(2) A projection referred to in sub-regulation (1) must not—
(a) exceed one-half of the length of the wall of the building on the level of the floor on which the projection is made; and
(b) exceed 3·7m in width.