House plans with basements are desirable when you need extra storage or when your dream home includes a "man cave" or getaway space, and they are often designed with sloping sites in mind. One design option is a plan with a so-called day-lit basement -- that is a lower level that's dug into the hill but with one side open to light and view. This lower level can open to a covered outdoor space below an upstairs deck or porch. As a result, these types of designs are sometimes called house plans with walkout basements or walkout basement house plans. To see more basement plans try our advanced floor plan search.