18. 200 Sq. Ft. Family-Friendly House

Adam and Gabrielle want a tiny house that they can raise their growing family in. They're hoping for a space that's not kid-proofed, but instead kid-purposed. With Gabrielle reaching the end of her pregnancy of their second child, the challenge for John and Zack will be coming up with a space that works for everybody before the newest member of the family arrives!