Some square feet can be constituted-of-or-filled-with facilities.
Some square miles can be constituted-of-or-filled-with habitat.
Some square feet can be constituted-of-or-filled-with buildings.
A size can be constituted-of-or-filled-with some square feet.
Some square feet can be constituted-of-or-filled-with public space.
Some square kilometres can be constituted-of-or-filled-with farmland.