This award-winning project shows that there are plenty of design advantages and day-to-day benefits of buying the house next door.

Who lives here: Architect Andrew Benn; wife Alice Penna, an interior designer, and their dog Nellie. Andrew’s mother, Professor Suzanne Benn lives next door with barrister, Dr Andrew Martin.

Style of home: Two 1920s workers cottages rebuilt as three houses over 11 months. The family homes link via the yard; the other is a self-contained rental.