My Big Amazing Renovation

Homeowners transform their 3,200-square-foot Buford, Ga., home into a 7,000-square-foot lakeside mansion.

The renovation schedule for a Denver cottage hits several roadblocks when seven snowstorms hit the city.

A Chicago couple buy three neighboring units around their high-rise apartment to create a 3400-square-foot condo that includes a massage room and a home theater.

A split-level is transformed into a Tudor-style home with double the space.

Outgoing David and Cindi Edwards buy an 800-square-foot cottage in Boulder, Colo.; they decide to triple their original footprint in order to entertain their friends and family.

Partners Andre Tremols and Michael Reamy transform a 2,500 square foot ranch in Arlington, Va.; they double the square footage of the home.

A couple add to their riverside estate in Maryland.

Mark and Suzette transform a tiny 860-square-foot bungalow in Denver, Colo., to a 4,050-square-foot Craftsman; some major renovation elements include a gym, luxurious kitchen and a new master suite.

Homeowners undertake a million-dollar makeover on their Miami waterfront home.

A family moves into its basement during a massive home renovation.

Don and Cara realize that their 1920s traditional Georgian home with roughly 3,800 square feet does not have enough room for their family of five; they want an upgrade to 6,200 square feet.

Larry and Diane Samuelson transform a 1980s Colorado ski-home from 3,500 square feet to 5,500 square feet; some major renovation elements include three master suites, theater room, new kitchen and a large family room.

Bill and Liz Bold decide to renovate their 75-year-old cottage in Del Ray Beach, Fla., after realizing that there is not enough room for them and their four children.