The first step in designing your foyer is to choose a theme. You can either match the interior style of your home or opt for something entirely different. Once you have a theme in mind, assess the area of your foyer and begin the interior design process. Start with prominent elements like the ceiling, walls, and floor, as these will lay the foundation for your foyer. Afterward, add other elements such as lighting, wall décor, sculptures, mirrors, chests, and bookshelves.