I have made the open space and remember that it is a dwarven city, i do understand what you are saying but it is designed for people who aren't very tall/big but thank you for the feedback!

1) its 20% complete and there is a lot more work to be done
2) its not stairs with a house the stairs lead down to where the dwarves live and work.
3) the house i think ur talking about is just one of the many rooms, its for the people who get hurt its a medical center and its just a add-on to the many things in the underground city. you will see when its done