Would a subterranean parking garage need to be included as infrastructure? Or are we looking at infrastructure from an airplane-view?

WE are working on a LEED ND project and are currently incorporating the LEED requirements in the project specifications.

Road embankment and roadbed must be counted as base and subbase materials? Or only foundation slab and screed? Thank you Strategie

If a new ND project is using the hardscape infrastructure of a previous housing development plan that was shelved/foreclosed, does that existing infrastructure count towards the percnetage of recyc