53 Pa. Stat. § 22842
The department of lands and buildings shall be under the charge of a director who shall be the head thereof. The care, maintenance, repair and alteration, management and supervision, of all city buildings, the supervision of janitors, watchmen, and elevator service, and the operating maintenance of all city buildings, and the lease, purchase, and sale of real estate of the city, shall be under the jurisdiction of this department. The supervision of contract work in connection with the construction of all city buildings may be under the jurisdiction of this department, or may be under the jurisdiction of the department of public works, as the council of said city shall direct in the ordinance authorizing and directing the letting of the contract work in connection with building construction.
53 P.S. § 22842