Jesus made it clear that the afterlife isn't a place. It's a state of being...
While it might not seem like it at first glance, even Jesus' comments about "going to prepare a place for you" and "in my Father's house there are many rooms" come from the rabbinic tradition and are meant to create a picture of God's redemption on earth.
Pagitt, A Christianity Worth Believing, p. 222-223
Although not as footnotes-happy as Bell or Tony Jones, Pagitt does have several in this book; however, when he makes this contention about Jesus' statement about His Father's house having many rooms, there are no footnotes, and no support is given to his claims about the interpretation he claims.
Also, there is the disciple's own reactions, recorded in the passages in John, to Jesus' statement. They are troubled by His words, and ask where He was going, and are in sorrow that He would leave.
If they knew He was only using figurative language, then why did it bother them so much? Would they not have welcomed it if it had been "a picture of God's redemption on earth"?
You heard me say, "I am going away and I am coming back to you." If you loved me, you would be glad that I am going to the Father, for the Father is greater than I.
I have told you now before it happens, so that when it does happen you will believe.
Perhaps Pagitt has some kind of supports for his claims. But if so, what are they? What rabbinic tradition is it that says what he claims? Why is his claim not supported? Could no specifics have been given, no specific resource cited?