The Foundation and Framing Are SolidJohn keeble // Getty ImagesThe first thing professionals evaluate, and you should too, is a home's structure. That includes the foundation, framing, roof structure, drainage, and overall proportions of the house. The Layout Makes Sensesvetikd // Getty ImagesA house can be structurally sound yet difficult to renovate if the floor plan doesn't work. Add to Google settings"I'm looking at two things: structural integrity and layout," D'Agostino says. The Major Systems Have Been MaintainedSchon // Getty ImagesGood bones aren't just limited to the framing, but also the major systems that make the house livable.