One of the major costs of a home addition is the construction of the foundation. This cost can be avoided if your project can be handled by bumping out rather than adding on. You will need to evaluate how the additional space will be used and how much weight it must bear. Then discuss your options with your contractor.


If the addition permits, you might even create a shaded spot below it that would be perfect for a patio. In fact, creating a patio below the “bumped out” wall might be a way to anchor the supports for the new wall. You could also discover a way to “bump out” the wall of a basement to create additional space there as well.