[lambdaindenver]

The definition of chapter house in the context of the NPC guidelines for social events is a functional one, not a legal one. If your chapter uses that location as a place for fraternity events - and it is the location that the undergraduates regard as a primary location for the fraternity's events, then it will be the chapter house. You can not get around this rule by stipulating that only one location is the chapter house. The NPC rule makes are too smart for that strategy.