In a bid to win it all, Lukas and Jay face off in a design challenge to make over a pair of beach houses.

The final four designers tackle a Victorian home in the last challenge before the finale.

The competition heats up as the designers are challenged to make over a pair of modern lofts.

Sparks fly when all the designers work under one roof for the first time.

The remaining seven designers regroups as teams to renovate a pair of classic California Craftsman-style homes.

The designers split into teams of two, each charged with reimagining a modular, prefabricated home.