London Government Act 1963

13 (1) It shall not be lawful in an inner London borough—

(a) to erect any house or other building, or

(b) to rebuild any house or other building Which has been pulled down to, or to a level below, the floor commonly called the ground floor,

unless there are provided to the satisfaction of the borough council drains conforming with the requirements of this paragraph and all such drains and all works and apparatus in connection therewith are constructed to the satisfaction of the council and, in particular, are constructed of such materials and size, at such level and with such fall, as are approved by the council and are provided with a water supply.

(2) In an inner London borough it shall not be lawful to occupy any house or other building which has been erected or rebuilt in contravention of the foregoing sub-paragraph or of section 37 of the Public Health (London) Act 1936.

(3) In order to conform with the requirements of this paragraph a drain must provide for the drainage of the house or building in connection with which it is required—

(a) into such sewer, situate or intended to be constructed near the house, building or site, as the borough council may direct; or

(b) if no sewer is or will be available for the drainage of the house or building, into such covered cesspool or other place, not being under any house or other building, as the council may direct;

and the drains must secure efficient drainage by gravitation at all times and under all conditions of all parts of the house or building including any areas, water-closets, privies and offices belonging to the house or building.

(4) In rebuilding in an inner London borough any house or building which has been pulled down to, or to a level below, the floor commonly called the ground floor, the level of the lowest floor of the house or building shall, subject to the provisions of the next following sub-paragraph, be raised so far as may be necessary to allow of the construction of such works as are required by this paragraph, and for that purpose levels shall be taken and determined under the direction of the borough council.

(5) Notwithstanding anything in the foregoing provisions of this paragraph, where it is proposed to erect or rebuild in an inner London borough any house or building at such a level as will not allow of the drainage of all parts of the house or building by gravitation as aforesaid, the borough council may, as respects any part of the house or building which cannot be so drained, either—

(a) allow that part to be constructed so as not to require drainage therefrom; or

(b) allow that part to be drained by means of such pumping or lifting apparatus as may be provided to the satisfaction of the council.

Any pumping or lifting apparatus provided under this sub-paragraph shall be deemed to be a drain.

(6) Where separate sewers for the reception of surface water and sewage respectively have been, or are intended to be, provided in any street, the borough council may, in the discharge of their functions under this paragraph in relation to any house or other building which is to be drained into the sewers in that street, require that the house or building be provided with separate drains for discharging surface water and sewage respectively into the appropriate sewers.

(7) Any person aggrieved by any order, direction, requirement or other decision of a borough council under the foregoing provisions of this paragraph may appeal to a magistrates' court.