Real science: A gadget from Murray Leinster's "The Skit-Tree Planet"

Well, not exactly, but ... someway to there.

How about building a house by setting up a projector that knows the 3D shape you want, & pointing it where you want the building erected? That's Leinster's story, where you can later switch off the projector to destroy the building.

The real-life version Bruce Sterling links is a 3D printer that can build - not quite the house, but parts of it at a time - in place. No force field projection, but real physical sand-like thing with the strength of reinforced concrete.