Donald Insall Associates is a firm of architects, designers and historic building consultants in the United Kingdom.

They have worked on contemporary and historic listed buildings, monuments and sites throughout Britain, and at UNESCO World Heritage Sites including The Palace of Westminster, Cross Bath,[1] the Tower of London, Kew Gardens and Caernarfon Castle.

They continue to operate according to the methodology and philosophy established by Insall, as outlined in his 2008 book, Living Buildings.

[5][citation needed] They have won over 200 awards[6] for their work, including twice-winning the Europa Nostra UK Medal of Honour, as well as the 2014 RIBA Building of the Year, Wales, for the Copper Kingdom project at Amlwch, Anglesey.

[citation needed] Major publications by the firm include: Donald Insall Associates lecture at specialist conferences in Europe, the Americas and Far East.