British firm of architects, designers, and historic building consultants
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, the Tower of London, Kew Gardens and Caernarfon Castle. They were involved in the restoration of Windsor Castle following the 1992 fire. They have worked extensively in the adaptive re-use of historic buildings, contemporary interventions and new design.
Sir Donald Insall founded the company during 1958 and was chairman until 1998. He continues to act as a consultant. They continue to operate according to the methodology and philosophy established by Insall, as outlined in his 2008 book, "Living Buildings".
They have won over 200 awards 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.
Donald Insall Associates are now majority employee-owned and work from seven UK locations, as well as working internationally as both architects and consultants. Their principal office is at 12 Devonshire Street, London. They currently have branches in Bath, Birmingham, Cambridge, Chester, Manchester, Oxford and Conwy. 
In 2015 they were ranked number 39 in the Architects' Journal AJ120 list of largest practices in the UK.
Major projects.
Major projects include:
Research and Education.
Publications.
Donald Insall Associates' members publish regularly. Major publications by the firm include: 
Academic Activities.
Donald Insall Associates lecture at specialist conferences in Europe, the Americas and Far East. They have lectured regularly at
References.
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