Renovate the attic or basement
This renovation can be costly but is really an excellent investment. Turn any attic into usable space by adding a playroom for the kids or even some sensible built-in storage. If your home doesn't have an attic, consider updating the basement instead by making it a livable space with an extra bedroom and even a bathroom. Adding an entire attic or basement is incredibly costly and not always possible due to permits, but updating what is already in the house can really increase your home's value.