Our project is an existing building, that is to be renovated in large parts and converted fron retail to office ues.

The first floor of the building will not be changed by the construction measures. in first floor there is a cafe with an outdoor area, located outside the LEED boundary, on the other side of the sidewalk. Parts are located within 7.5m distance of buildings openings. 

In order to comply with the prerequisite, must prohibiting smoking also be enforced for the existing outdoor area, or can an amendment to the existing lease agreement be waived in this regard?