House plans with basements are desirable when you need extra storage, a second living space, or when your dream home includes a "man cave" or hang-out area/game room for teens. Below you'll discover simple one story floor plans with basement, small two-story layouts, luxury blueprints, and everything in-between. Basement plans come in a variety of styles, including modern farmhouse, barndomonium, Craftsman, and more. Looking to build on a sloping lot? Check out our collection of House Plans with Walkout Basements.