2700 square feet
If you are talking house wise...400 sq is incredibly small...most likely a one floor house. One room probably.
You should push the button to call the elevator to the first floor.
You might be thinking of a Blueprint. Or a floor plan.
In the UK we call it the ground floor.
Call a moving company in your area. They should be able to give you an estimate over the phone.
Your house can have a 'floor one' and a dungeon. If you consider the dungeon to be another floor, then yes. If not, then no.
The East Room is on the second floor of the White House.
Levitt towns were suburbs in which all the house had the same floor plan (or a few (3) floor plans) and made with inexpensive materials, we call them cookie cutter home today.
You can't. There is no to get a second floor added to your house.
Steny Hoyer of Maryland is the current Majority Floor Leader in the House of Representatives.
The White House has tours for the public. The only floor the public can visit it the State Floor. The tour would start on the ground floor and go up to the State Floor by elevator.