4. The floor or lowest floor of every building erected or re-erected from the ground-level must be constructed at such level as will admit of—
(a) The construction of a drain sufficient for the effectual drainage of the building, and placed at such level as will admit of the drainage being led into some Municipal drain at the time existing or projected.
(b) The provision of the requisite communication with some drain into which the drainage may lawfully be discharged, at a point in the upper half of such drain, or with some other outfall into which the drainage may lawfully be discharged.
Building over Municipal drain.
5. No foundation of any building shall be placed over any Municipal drain, nor shall any superstructure whatever, whether verandah, balcony, eave, or any other portion of the building, project beyond a vertical line drawn through the centre of the drain, and if there be no drain, not beyond 1 foot 6 inches from the edge of the road. But no material or structure of any kind at or below the level of 6 feet from the ground, with the exception of entrance culverts, allowed under Rule 7, shall project over any part of a drain.
Entrance culverts.
6. The applications which are filed for entrance culverts must contain the following particulars:—
(1) Length.
(2) Breadth beyond drain.
(3) Ventage allowed.