We are pursuing LEED EBOM v2009 for an office complex. The project was built at the same time and has two twin buildings, with independent HVAC systems. However they operate as one, sharing open areas, underground parking, owner, property manager, waste disposal spaces (there is only one waste disposal space for the complex), purchasing, services (such as maintenance, cleaning, gardening, etc.).
We had registered this project as a single project but now have doubts about whether this should be a single building or group certification.
If we finally do this as a group, do we need to register a master site, etc?
What do you think?