Reg.Nr.

Westminster Hall

Westminster Hall in London is one of Europe's most important medieval halls and the oldest surviving part of the Palace of Westminster. Dating from the late 11th century, the Grade I listed building forms part of a UNESCO World Heritage Site. Between 2010 and 2020, a three-phase ...
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Project details

Title:Westminster Hall
Entr. year: 2024
Result:Award
Country: United Kingdom
Town: London
Category type: building conservation, architectural heritage, single building
Notes:Grade I listed building within a UNESCO World Heritage Site. Award Winner 2024.
Building type/ Project type: Government/Public building, architectural heritage, Assembly building
Former use:Royal ceremonial hall, judicial venue, and parliamentary space within the Palace of Westminster.
Actual use:Historic parliamentary and ceremonial hall, visitor entrance, public heritage space and venue for official events.
Built: 1097–1099; medieval hammer-beam roof constructed in the late 14th century.
Architect / Proj.leader: Donald Insall Associates; Alan Baxter Ltd , Adam Watrobski (project contact; leadership role not confirmed)
The Jury's citation: This project, characterised by its meticulous attention to detail and sensitivity, adheres to the highest standards in conservation. Its strong basis in documentation and rigorous research has ensured that the most appropriate and innovative solutions were established. The use of minimal scaffolding enabled public access and a safe work environment during the works. The use of nano-lime further exemplifies the project’s commitment to cutting-edge techniques. New additions, such as the window, harmonise seamlessly with Westminster Hall’s original structure. Great care was spent maintaining the iconic building’s patina, resulting in a restoration that is imperceptible to the eye. With its high visibility, this project has the potential to significantly enhance public appreciation for heritage conservation.
Web, Links:

www.parliament.uk

Description:
Westminster Hall in London is one of Europe's most important medieval halls and the oldest surviving part of the Palace of Westminster. Dating from the late 11th century, the Grade I listed building forms part of a UNESCO World Heritage Site. Between 2010 and 2020, a three-phase conservation programme undertaken by Donald Insall Associates and Alan Baxter Ltd in collaboration with the UK Parliament restored the historic masonry, medieval hammer-beam roof, roof lantern, windows and sculptural details. Innovative techniques included nano-lime consolidation of medieval carvings and latex poultices for sensitive stone cleaning. The project also introduced the Queen's Jubilee Window, improved accessibility, upgraded drainage and discreet modern services. The conservation safeguarded the building's historic character while supporting its continued use for parliamentary ceremonies, public visits and national events. Copy Description