Hello, just a question about LEED Project Boundary.

Our project consist in a renovation of an existing building of 9 stories above grade and one below grade for parking areas and other building facilities such as changing rooms and bicycle racks.
The story below grade have a square footage bigger than the ground floor footage.
The ground floor building footage is 9,000 sf while the below grade area is 12,000sf.
The outside area at the ground floor level ( 12,000 – 9,000 =3000 sf), which is hardscape, IS NOT OBJECT OF ALTERATION. We are not sure about the correct LEED Project Boundary.
Should we consider the below grade area (12,000sf )or just the ground floor (9000 sf), excluding the hardscape area?
If we consider, as LEED Boundary, just the ground floor area (9000 sf), can we include in the LEED application the total below grade area and pursue the credits about parking and building facilities sited below grade?
Thank you!