For zoning lots that have a street frontage of less than 75 feet, where entrances to off-street parking or loading facilities are located along such street frontage, the City Planning Commission may modify the dimensions of the frontage and depth requirements for ground floor commercial uses set forth in Section 42-485 (Streetscape provisions), provided that the Commission finds that such modifications:

(a)        are the minimum necessary to provide sufficient space for access to off-street parking or loading facilities;

(b)        will not adversely affect the streetscape experiences or impact the viability of such uses, and the resulting ground floor frontages will effectively contribute to a vibrant mixed-use district; and

(c)        to the greatest extent feasible will result in a ground floor that meets the height requirements for qualifying ground floors.