Sir Donald Insall, Architect and Figure in Modern Architectural Conservation, Passes Away at 100
On October 11, 2026, Donald Insall Associates announced the passing of its founder, Sir Donald Insall. Describing him as "a man of great tact, charm and humour," the practice recognized his contribution to the structures, institutions, and tools of heritage preservation in England, as well as his practical knowledge and application of the craft of restoration. An architect, conservationist, planning consultant, author, and teacher, he led one of Britain's leading conservation practices for four decades after founding it in 1958. His practice undertook the renovation of William Morris's Kelmscott Manor in Oxfordshire and Robert Adam's Kedleston Hall in Derbyshire, the conservation of Chester's historic center, and the restoration of Windsor Castle following the 1992 fire, among other British landmarks.
