LEED project boundary

From my experience, you must choose a single LEED boundary that is consistently documented across all credits. The only exception I've seen allowed is for the Light Pollution credit for very specific instances. I would create the single-most logical boundary based on the limit of work, area of disturbance, and/or property boundary, and if there's something that seems visually odd, concisely explain it on the boundary plan for the reviewers.

hello Emily and Francesco! We are currently working on a corporate building project (Tower 1) that is seeking LEED certification. This building is part of a complex with other buildings that, for now, are not pursuing certification. However, Tower 1 and Tower 2 share the underground parking levels, and the stormwater retention tank for Tower 1 is mostly located within Tower 2’s area. We have two questions regarding the definition of the LEED Boundary in this context: Does the stormwater retention tank need to be entirely within the LEED Boundary of Tower 1 to be considered for certification? Would it be feasible to define a LEED Boundary in the underground levels that includes the stormwater retention tank within Tower 1’s limits, while establishing a smaller boundary in the upper levels to avoid compromising Tower 2’s surface area due to the tank’s location? We would appreciate any references or prior experiences with similar situations. Thank you in advance for your help!