For any large-scale residential development for which proposed modifications of the applicable district regulations are limited to those which may be granted in accordance with the provisions of Sections 78-21 to 78-23, inclusive, relating to Use Regulations, Sections 78-311 and 78-313 relating to Bulk Regulations, Section 78-41 (Location of Accessory Parking Spaces), or Sections 78-51 to 78-53, inclusive, relating to Subdivision of Large-Scale Residential Developments, the City Planning Commission may grant such modifications in accordance with the provisions of such specified Sections and may prescribe appropriate conditions and safeguards thereon.