LEED Site boundary – underground parking

Hello all, We are working on a project with 2 stories for underground parking. About the half of the parking space is built for building users as required by local zoning requirements. The other half of the parking space is built for public use, but is also required by the municipality. The parking space for the building users will be reserved through signage. Can we draw the project boundary between the two underground parking stories and exclude the parking space intended for public use, because only the half of the parking space is built for building users? Or do we have to include the whole parking space? Thanks in advance!