Season 6: Episode 147: I, Done, Part 1
The series ends its six-year run when the Banks decide to put the mansion up for sale. Family members are on the go, and everyone's "in the fast lane." Except for Will, who's stuck on life's "soft shoulder" who tells a little lie, that he found a nice apartment. Will lied because he felt that everyone was going on with their lives and he was just staying put in Bel-Air.