It shall be unlawful for any person to build, construct, maintain, conduct or manage in any block in the city in which two-thirds of the buildings fronting on both sides of the street or streets on which the proposed hospital may front, are devoted exclusively to residence purposes, any hospital, unless the owners of the majority of the frontage in such block and the owners of the majority of the frontage on the opposite side or sides of the street or streets on which such building faces, consent in writing to the building, constructing or maintaining, managing or conducting of any such hospital in such block. Such written consent of the majority of such property owners shall be filed with the City Council before a permit shall be granted for the building or constructing or a permit be issued for the maintaining, conducting or managing of any such hospital.
(`83 Code, § 5.52.040)