(1) "Residential infill development" means any permitted type of dwellings and may include incidental non-residential components of a residential development proposal such as amenity buildings in apartment complexes;

(2) "Commercial infill development" means any permitted non-residential use other than general retail as defined in SCC 30.91R.143; and

(3) "Mixed-use infill development" means any mix of permitted non-residential use up to 65,000 square feet and residential development of any amount, provided that any non-residential use meeting the definition of general retail in SCC 30.91R.143 is limited to 30,000 square feet.