If you create or use architectural plans, understanding how copyright law works is critical. Home-plans are reused far more often than many assume. Builders may reuse design drawings without approval.

We have all seen a floor plan before. They are typically black-and-white, and maybe some room labels, and an occasional furniture piece or two. This has been the norm for just about as long as anyone ...

Phantom drawings of a prospective house flicker along the floor and walls of an empty warehouse. A central hall runs the length of the plan, dividing a living area on one side from a dining room and ...