No.
The building footprint is the area it occupies within a lot or space. That building can be multiple stories ether above or underground. The space within the building footprint/ multiple stories can be considered the square footage.
Skyscrapers maximize the building footprint on the ground, by providing additional square footage for each floor above the first that essentially duplicates the building's footprint.
The square footage is the footprint: length times width. 7521 square feet.
Square footage of a building usually refers to the total square footage of floor area.
measure it or ask the building contracter
47190
California
Unless you have a flat roof, no; the surface area of the roof will be larger than the ground area of the building.
I use algebra to figure square footage, cubic footage, and angles when building, It is very important.
A good builder will cost around 125 to 135 hundred dollars per square foot. Final price depends on square footage and final building materials.
1200 sq.ft. 30x40=1200
384 feet squared
432