No owner or plumber shall be permitted to conduct water pipes into any two distinct premises or tenements unless separate and distinct stopcocks shall be placed on the outside of each such premises along the sidewalk opposite the same, nor shall any pipe be allowed to cross lots or buildings to adjoining premises. Duplex flats, double houses and apartment houses shall be considered as one “premises”. A “premises” shall be construed to cover all buildings and divisions under one common roof, owned by one party who will be charged for all services to such premises.
(1975 Code, § 32-133)