To compose a plan for a building. Photo of design by Andrea Palladio. 2. The architectural concept of a building as represented by plans, elevations, renderings, and other drawings. 3. Any visual concept of a man-made object, as of a work of art or machine. 4. The creation and organization of formal elements in a work of art. 5. To conceive, contrive, or devise the form and structure of a building or other construction.