The colossal site of Wotton Works was once occupied by Handley Page, one of the UK’s powerhouses of aviation. Fast-forward to 2018 and a sensitive, sustainable renovation by architects Caireen O’Hagan and Base Associates honoured the building’s trailblazing heritage. The upper level houses a striking 530 sq m (5,711 sq ft) penthouse residence. The property currently has seven bedrooms but there is room for expansion to create up to ten bedrooms. Accessed via a discreet gated entrance, a 30-met...