In any district with the exception of the H Historic District, in connection with every building or part thereof hereafter erected and having a gross floor area of 10,000 square feet or more which is to be occupied by manufacturing, storage, warehouse, goods display, retail store, wholesale store, market, hotel, hospital, funeral home, laundry, dry cleaning or other uses similarly requiring the receipt or distribution by vehicles of materials or merchandise, there shall be provided and maintained, on the same lot with such building, at least one off-street loading space plus one additional such space for each 20,000 square feet or fraction thereof of gross floor area so used in excess of 10,000 square feet.