There is an X-Shaped bridge overlooking the lobby with the Basin of Lolth’s tears. Noble Drow can levitate directly onto the bridge, and are pretend to have a battle against intruders in three dimensions.
The Weapons master has his own training room next to his bed chamber, achieving to always be in peak fighting condition.
The archmage of the house maintains his own lab where he can perform his rituals and summoning spells next to his bedchamber. The wizards under his command all share a secondary lab with living quarters in one great chamber.
Going straight from the gate at the stairwell leads to more steps leading higher to the high-priestesses’ floor where the Matron of the house calls her home.