Vaulted ceiling house plans add visual space and make a grand statement. Whether a symmetrical cathedral ceiling or a vaulted ceiling, elevated ceilings create an open and airy living space. One-story or simple house plans with a vaulted ceiling in the great room will appear larger and airier. An elevated ceiling also allows space for large windows that will bring natural light into your living spaces. Two story home plans with a cathedral or vaulted ceiling may have a balcony or loft on the second floor that overlooks the great room and adds dimension.