For large-scale residential developments for which proposed modifications of the applicable district regulations include those which may be granted only in accordance with the provisions of Sections 78-312 to 78-33, inclusive, relating to Bulk Regulations, or Section 78-42 (Parking Regulations for Commercial and Community Facility Uses), the City Planning Commission may grant special permits for such modifications in accordance with the applicable provisions of such specified Sections and other sections of this Chapter and may prescribe appropriate conditions and safeguards thereon.