In this first kick-off challenge, both teams must design an inner sanctum for a mystery celebrity.

In the second 'Top Design' challenge, contestants will each be given a dossier for individual clients for whom they must design a bedroom. Halfway through the challenge, with their sketches finalized and the shopping completed, they will learn there is a big and small twist. Only one talented designer will win.

It's all about rest and relaxation for the remaining contestants as they head to the beach in the third episode of "Top Design" -- or so they think. The sun and sand will turn out to be the grounds for another challenge.

Every talented interior designer must have an 'eye for design,' and this fourth episode will test the eye of each of the remaining contestants. They must create a living and work space for their clients, who are all design students, using uncommon materials.

The fifth episode of 'Top Design' features the designers working with The All-American family -- three kids, two parents, and a dog -- to create a dream family space.

Party on! The contestants will be split into two teams of three in the sixth 'Top Design' challenge and asked to design competing party spaces for Bacardi Limon to entertain guests of ELLE DECOR Magazine. Find out who can really party in this all-new episode.

The competition gets cookin' in the seventh episode of 'Top Design' when the remaining contestants face 'Top Chef' Head Judge Tom Colicchio (Chef) in their hardest design challenge yet.

The strongest remaining interior design contestants select one of 10 ELLE DECOR Magazine covers as inspiration for their design for an living room.

And then there were two. The remaining contenders who will strive to create the ultimate 'Top Design' will each design the interior of a house -- two separate 1,700 square foot lofts in downtown Los Angeles to be exact.