Building In, Building Out, or Building Up!
You have the choice of adding rooms inside your home and outside.
Inside Home: Divide large open interior spaces into multiple rooms. Or make use of high vaulted ceilings by adding a loft.
Outside Home: Add onto existing home by sharing a wall. Build into side or back yard. Or construct a separate free standing granny flat, home office, or garage.
Upstairs Second Story: Go upstairs with an entire new second story addition. Add as many rooms over your single story home as you need.