Adding a room to your existing home is a great way to increase square footage and make room for guests. Detached mother-in-law suites, pool houses and bonus rooms connected to the main house by a arbor can really add to the appearance of a home’s size while providing much needed, extra space. Room additions can also be made to the existing home directly if the size of the lot does not permit a detached structure. Our photo gallery includes pictures of a home we built new and later added an extra room and bathroom with its own back staircase to match the entrance foyer staircase.