From the bottom up it goes
Garage that has a door that leads to the hallway with the elevator in it.
1st floor is weight/work out room
2nd Floor is bedrooms
Main floor is the game room, kitchen, trainning room, and living room
Top Floor is where the main computer is and pretty much everything else that controls the tower(Hard drives, circuit boards, etc.)
Roof contains a helicopter pad,volley ball court, pool, beahc chairs around the pool, and a bar(No alchoal in the bar since everyone on the team is a teen, only soda, fruit drinks, and really everything that isn't an alchoalic beverage).
We kept the designee as close as we could to the tower from the show and comics and only made minor adjustments if any to support the roleplay needs(Pretty sure the pool wasn't on roof before, but its much better up there)