It is unlawful for any person to rent or let rooms for housekeeping or for sleeping accommodations in any building or structure in the city, unless such person shall provide one toilet for every ten persons. Such toilets shall be installed in accordance with the laws of the city, and the sanitary conditions of such toilets shall be approved by the public works coordinator. In determining the number of persons occupying rooms, all children over the age of six months shall be counted or included. The provisions of this section shall not apply to rooms rented or let from day to day only at hotels and tourist homes where no cooking is done in the rooms so rented or let, or to rooms occupied by students in schools or colleges where no cooking is done in the rooms so occupied by students, provided that adequate toilet facilities are otherwise furnished. (Prior code § 4-1-12)