Sir Donald William Insall CBE (born 1926) is a British architect, conservationist and author, who has been described as "one of the leading conservation architects of his generation". He is the founder of the architectural, conservation and architectural consultancy practice, Donald Insall Associates.
Insall was born in 1926 in Bristol, where he attended Bristol Grammar School. He served in the Coldstream Guards during the Second World War and qualified in architecture at the Royal West of England Academy School of Architecture, now part of the University of Bristol. He then studied at the Royal Academy and the School of Planning.
Insall worked with the London architects, Phillimore and Jenkins. During 1957 Insall published his report The Care of Old Buildings, marking the 80th anniversary of the founding by William Morris of the Society for the Protection of Ancient Buildings. During 1958 he founded architectural conservation practice Donald Insall Associates, and was joined shortly after by Peter Locke (1929–2013), both men having been Lethaby Scholars of the Society for the Protection of Ancient Buildings in 1950.
Donald Insall Associates continues its specialist work in conservation, historic consultancy, adaptive re-use and new buildings in sensitive sites. Insall ran the practice until his retirement in 1998.
In the 1995 New Year Honours Insall was appointed a Commander of the Order of the British Empire (CBE) for services to conservation. Subsequently, he was appointed a Knight Bachelor in the Queen's 2010 Birthday Honours.
- The Care of Old Buildings, report (1957)
- Chester: A Study in Conservation (1968)
- The Care of Old Buildings Today: A Practical Guide (Architectural Press, 1972)
- Living Buildings: Architectural Conservation, Philosophy, Principles and Practice (Images Publishing Group Pty Ltd, 2008)
- Windsor Castle restoration following the 1992 Windsor Castle fire
- Battle of Britain Monument in London
- Palace of Westminster
- Cross Bath, Bath, Somerset, refurbished in the 1990s
- Somerset House
- Garrick's Temple to Shakespeare
- St Barnabas' Church, Bromborough
- Plumpton Place
- Wotton House
- Chester Conservation Plan
- Market Hall, Monmouth – a new flat roof for the single storey building, together with a Modernist metal and glass facade at the rear, overlooking the River Monnow, in 1968–69
- Winter Gardens, Blackpool
- "Chester architect Donald Insall knighted in Queen's Birthday Honours". Chester Chronicle. 16 June 2010. Retrieved 23 February 2014.
- "Queen's Birthday Honours List 2010" (Press release). Cabinet Office. 11 June 2010. Retrieved 23 February 2014.
- Horton, Mark (18 February 2004). "Donald Insall: Doctor of Laws". Public and Ceremonial Events Office. University of Bristol. Retrieved 23 February 2014.
- Insall, Donald (March 2013). "Peter Locke, FRIBA, FSA, 1929–2012". RIBA Journal.
- "Sir Donald Insall CBE FRTIBA – Doctor of Architecture honoris causa, of the University of Chester". Honorary Graduates 2012. University of Chester. 2012. Retrieved 23 February 2014.
- Richardson, Viel. "History Man; Sir Donald Insall". Marylebone Journal. Retrieved 23 February 2014.
- "Honours and Awards: Central Chancery of the Orders of Knighthood". London Gazette (59881): 15670. 16 August 2011. Retrieved 23 February 2014.
- Fleming, Christine (20 June 2010). "OBEs, CBEs, and knighthoods all round as Richmond residents make it on to Queen's Birthday Honours list". Richmond and Twickenham Times. Retrieved 7 February 2014.
- Carey, Peter. "Reviving the Cross Bath". Building Conservation.com. Retrieved 25 July 2009.
- Miller, Keith (20 September 2003). "Making the grade: The Cross Bath, Bath, Somerset". The Telegraph. Retrieved 26 July 2009.
- Newman, John. The Buildings of Wales: Gwent/Monmouthshire, Penguin Books, 2000, ISBN 0-14-071053-1, pp.405–406
- "Blackpool council appoints Donald Insall Associates" (Press release). Homes and Communities Agency. 21 October 2010. Archived from the original on 27 February 2014. Retrieved 23 February 2014.