For uses denoted with a “U” in Section 32-161 (Use Group VI – general use allowances), a use may be open or enclosed without restriction except that:

1. for the following uses in C8 Districts, the maximum open area on a zoning lot allocated to such use shall not exceed 5,000 square feet:
   
   Automotive equipment rental and leasing;
   
   Building material and supplies dealers;
   
   Commercial and industrial machinery and equipment rental and leasing; and
   
   Recreational goods rental;
2. boat dealers in C3 Districts may be conducted outside a completely enclosed building only if located at a distance greater than 100 feet from a Residence District boundary;
3. for lawn and garden equipment and supplies retailers or florists in C1 or C2 Districts, or C4 through C6 Districts, the maximum open area on a zoning lot allocated to such use shall not exceed 5,000 square feet. In C7 or C8 Districts, such use may be open or enclosed without restriction;
4. for eating or drinking establishments, such open use shall be limited to outdoor table service;
5. recreational boat repair in all Commercial Districts may be conducted outside a completely enclosed building only if located at a distance greater than 100 feet from a Residence District boundary; and
6. health and fitness establishments in all Commercial Districts may be unenclosed except in C1 through C7 Districts, high-intensity uses, as listed in the definition of health and fitness establishments, shall be located within completely enclosed buildings.