It shall be unlawful for any person to construct or commence the construction of any additional building or an addition to any existing building on any lot which cannot be served by the sanitary sewerage system provided and maintained by this town, unless and until plans for the location of the addition are approved by the director of health or an inspector duly appointed by him, and a written permit issued by the director of health or his duly appointed inspector for the construction, certifying that the proposed construction will:
(A) Not render the existing individual sanitary sewage disposal system inadequate;
(B) Not interfere with the functioning, service or maintenance of the existing individual sanitary sewage disposal system; and
(C) Not occupy an area which must necessarily be reserved for the expansion of the present individual sanitary disposal system in order to assure proper functioning of the system in the future.
('66 Code, § 57-3) Penalty, see § 50.99