We have an upcoming international new construction project of a multi-family residential building. Due to its numbers of stories LEED NC v4 is the most appropriate rating system to use.

To achieve the prerequisite "environmental tobacco smoke control" we would appreciate it if you could give us some detailed information about its implementation. It is intended that we meet all requirements by prohibiting smoking in all common areas of the building and by compartmentalization of the private residential units.

But what about the private balconies? Do we have to prohibit smoking on all private balconies or are we allowed to designate balconies as “private” smoking areas, where smoking is permitted, if the balcony is at least 25 feet (7.5 meters) away from entries, outdoor air intakes, and operable windows opening to common areas?

What would you recommend?
Kind regards,