Building’s Bulletin 25 of 2009 (BB 2009-025) allows changes between occupancy group M (Mercantile or Retail) and group B (businesses) without the need to obtain a new C of O when certain conditions are met. The conditions are as follows:
If all of the above conditions are met then the bank is permitted to be installed in the retail space without the need to obtain a new or amended C of O.
Your waterfront project may need permits from an unlikely source.
Special Considerations for Cold-Formed Steel Construction.