We have a site that contains two buildings that are being certificate as a campus project.
In the ground floor of Tower A there are some stores that we want to exempt of the certification project (maximum of 10%).
Making some calculations, this area represent 10,36% of the total gross floor area of Tower A and 5,06% of total gross floor area of (Tower A + Tower B).
My question is: for a group project, is the maximum of 10% considering total gross floor area of all buildings or for each one of them?

Thank you.