In M1A Districts paired with Residence Districts, for zoning lots with buildings containing residential and non-residential uses, notwithstanding the maximum floor area ratio for individual uses on the zoning lot, the total floor area ratio shall be as follows:

                                                                                                 TOTAL FLOOR AREA RATIO

However, in M1-2A Districts paired with R6A Districts, for zoning lots with a lot area greater than 10,000 square feet, where the floor area provided exceeds an equivalent floor area ratio of 4.5, any such excess floor area shall be allocated exclusively to:

1. referenced commercial and manufacturing uses, other than automotive repair and maintenance establishments listed under Use Group VI (Retail and Services); or
2. libraries, museums, community centers, non-commercial art galleries or philanthropic or non-profit institutions without sleeping accommodations listed under Use Group III(B) (Community Facilities Without Sleeping Accommodations).