When space inside the house is feeling maxed out, finding solutions outside and expanding the living space by tapping into a backyard's potential can help.

Love is large, but space is tight for Lara & Mike and their 5 children. Brian and Sarah free up space by building an activity-packed tree house and recreation court for the children, with grilling, dining and lounging areas for the whole family.

Mom and son duo, Paul and Catharine, are overwhelmed by Paul's multi-level backyard. Paul also finds his current indoor fitness regime frustrating. Brian and Sarah muscle up to the challenge by building a gym in his backyard, alongside a hot tub.

Ex-city slickers, Lauren and Mark, miss their friends and family from the city. Brian and Sarah create a country retreat with an outdoor pad, indoor dining lounge, and a chicken coop. When Lauren and Mark's friends visit, they'll never want to leave.

France & Marc's home is being outgrown by their sport-obsessed sons and provides no inspiring space for France to work from home. Brian and Sarah convert a rundown garage into a spot where France can work and carved out safe sports areas.