The largest question facing anyone planning a move into new premises is how to manage this process and still remain friends. As anyone who has wallpapered a room with their spouse can attest - this kind of activity can be damaging to your relationship !
There is never enough space and always too many demands to fit the budget. Trying to pinpoint who are the users, what are their immediate needs, and how to address them should focus the discussion and drive debate with evidence rather than personal preferences.
But then again, this is academia, and just what is evidence, what is a user, what is the subjective ??? These issues can really bog you down if you want to start down that cultural narrative garden path into the thorny bed of..., oh let's just let that metaphor die right now.