Yes, we host many sweet 16 parties, My venue capacity is 200. However, I the best parties are 150 or less. That way it give you lots of extra space for dancing, a lounge/mingling areas.
You can rent the venue out for an event so I don't see why you can't hold a sweet 16 party there. Just guessing, but from what I've seen I would think the building can hold a couple of hundred people.
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