We are designing a standalone auditorium addition to an existing high school facility using LEED 2009. We are not disturbing or renovating any of the existing school facility.
The addition includes a lobby space, auditorium, stage, black box theater, and a control room, bathrooms, dressing rooms and storage. The seating capacity of the auditorium is 800 people. As this is a standalone project using the student population does not seem to apply as the facility will be used only for assemblies and afterhours community use.
When we attempt to calculate the FTE, Transients, and Daily occupancy – things get extremely confusing. The FTE for staff is clear because we have owner information, but when it comes to computing the peak and daily average of occupancy for both Visitors and Students, it’s a haze. How do we determine this? Does anyone have similar experience with auditorium additions?

Thanks,
Gary