1. A Waste barrel in the lower floor, either in the main public area, or in each of the four Storage Rooms
2. For the Red Lantern restaurant to include actual food instead of just drinks. Maybe some Sanctuary Gin in the drinks list?
3. Any kind of place to rest for the Councillor holding the building. Perhaps with a Desk and chairs for meetings, though the Red Lantern serves.
Let me know if any of this should be pursued in game.