House numbers & letters are essential for mail delivery, the pizza guy, and for receiving mail or package deliveries. Your house numbers or name can be understated and discrete, or it can be more lavishly displayed. Make no mistake, they are part of the general appearance of your home. Some neighborhoods even require that house numbers be prominently displayed so that emergency vehicles will have no difficulty locating the correct house. While you might no longer believe in fantasy deliveries from Santa or the Easter Bunny, well-displayed house numbers help your package deliveries arrive efficiently.