(1) Board of Zoning Adjustment. Where the proposed modifications of existing zoning concern only the bulk and placement of structures and the size and shape of lots, regulation of lot area, average lot width, distance between buildings, size of courts, yards, gross floor area, building height, and/or building coverage, or involved a reduction of lot area per dwelling unit of no more than 33 percent, such application and general plans shall be filed with the board of zoning adjustment and acted upon as a permitted special use. If such application and general plans are approved by the board of zoning adjustment, upon specific findings that the intent stated in IGCC 17.15.010 will be met, such approval shall be construed to modify provisions contained elsewhere in this chapter, insofar, and only insofar, as specific deletions, additions and changes are made which are related to land and structures in the tract, and the tract shall be designated a planned development unit within the existing zoning district; provided, that the requirements of IGCC 17.15.050 are met.

(2) Amend Chapter. In any other cases, the application and general plans shall be filed with the city council and acted upon as a proposed amendment to the chapter. If such application and general plans are approved by the city council, following a favorable recommendation by the planning and zoning commission, upon specific finding that the intent stated in IGCC 17.15.010 will be met, such approval shall be construed to amend this chapter insofar, and only insofar, as specific deletions, additions and changes are made which are related to the land and structures in the tract, and the tract shall be designated as a separate planned development district; provided, that the requirements of IGCC 17.15.050 are met. [Code 1975 § 6-5.0304.]