Definition of limited landscape opportunities

Here is the response I got from LEED Coach at USGBC in response to my question above: "There is not a published definition to reference, instead the GBCI takes a case by case approach. If you have a specific project site in mind, we would encourage you to submit a CIR explaining the site situation and how it might be considered a limited landscape. Examples that would qualify could include zero lot line scenarios, area that is programmed for other required uses (energy generation, paved area, etc), easements, area outside of their control (by the local jurisdiction or otherwise), etc. It may be worth noting that this criteria of limited landscaping is not in LEED BD+C: Retail but still allows donation to the land trust."