On a quiet, tree-lined avenue, just south of Crouch End’s energetic Broadway, lies an artful reimaging of a grand Edwardian semi-detached house. Its design was conceived by the architect Niall McLaughlin, resulting in a brilliant centrepiece and observatory to its tree-filled surroundings, and a gallery-esque backdrop for a family of collectors. The house exceeds 3,400 sq ft over four storeys, with five bedrooms, and two dramatic lower levels that interact beautifully with one another and with the substantial private garden.