The clients purchased the property next door to create a more spacious and comfortable house for their growing family. They had a clear idea of transforming the two adjacent side returns into an internal courtyard by adding a single storey rear kitchen extension with a rooftop terrace. A basement was created as a self-contained apartment connected to the house by one of the two retained staircases. A loft conversion provided space for a generous master suite with two walk-in wardrobes, a study and an another terrace.