By Mark J. Donovan
It depends. Remodeling your lower level to create a finished basement living space is typically less expensive to do than building a room addition off the side or back of your home. However, if you have major water issues around your home’s foundation then it could become quite costly to have to excavate and install a perimeter drain around the entire house foundation.
Room additions are also typically much more expensive simply due to the fact that you’re effectively building a new home and attaching it to your existing one.