This home extension is all about creating smart design in a sensitive and ecologically sympathetic way. The modernist house sits in a small oasis of protected woodland within the Dulwich Estate which is a conservation area in south London. The family wanted to add a fourth bedroom to the house, but they couldn’t extend upward due to the constraints of living in a conservation area. They also sought to relocate the kitchen, where they spent 80 percent of their family time, from an enclosed room at the front overlooking the street to embrace the woods at the rear. The family spends lots of time barbecuing and relaxing in the garden, so it was also essential for the new space to easily extend into an outdoor kitchen. It was paramount for the extension to have a light ecological impact that would avoid disturbing the abundant wildlife in the garden—including foxes, squirrels, birds, and bats. The structure was designed as a simple rectangular form that subtly extends from the existing home into the forested surrounds.