No one knows exactly. Some areas are not public & there are tunnels, etc. that are not advertised for security reasons.
The White House has 55,000 sq. ft. of floor space.
1,200 sq ft. is tinny 2,000 sq ft. is small 3,000 sq ft. is medium 6,000 sq ft. is large
10,000 for a house is a lot.
125,000
60000
1,600 sq ft = 148.64 sq m (rounded)
42
80000
About 300 miles
Answer = 20 ft x 34 ft = 680 sq ft
As many as you like - if you make them small enough!
5220.5 sq ft