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Mace Construct and Mace Consult operate as two independent businesses. Mace Consult launched as a new and independent business on 5 March 2026, through a carve-out from Mace Group. Information, references and materials on this website may represent operations prior to the demerger. Go to Mace Consult here.

British Museum Great Court and the World Conservation and Exhibitions Centre

Making history future-proof

Preserving the past, innovating the future

Exterior view of the main entrance to the British Museum

Key takeaways

6.8m

visitors welcomed annually

6,000

steel sections in the Great Court Roof

37,000

meters cubed of excavated material

  • The museum’s largest redevelopment in 260-year history, including a laboratory, logistics centre, temporary exhibitions, and gallery. 
  • A total of 3,312 panes of glass were used to create the Great Court Roof, requiring a 20m high scaffold and 593 props. 
  • Across the 6-year period of construction, the museum able to remain open with minimal disruption through expert care and delivery. 

Having successfully teamed up with the British Museum on the Great Court well over a decade ago – appreciating the unique, sensitive needs of a cultural institution – in 2009 we were brought on board as the WCEC’s construction manager. 
 
The WCEC presented a thrilling challenge. With more than 6.8 million visitors each year and an unparalleled world collection, shutting public spaces for renovation was simply unthinkable - meticulous planning was vital. 
 
Using our expertise, the museum remained open and disruption was kept to a minimum. We embarked on weekly inspections, ensured vibration levels were safe and employed a drop reach excavator just out of sight – the first in the UK. 
 
With sustainability and energy efficiency paramount, we sought to reduce carbon emissions not just in the WCEC, but throughout the entire Bloomsbury site. 

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Mace Consult and Mace Group are now two independent businesses.

In 2025, a majority investment in Mace Consult by Private Equity at Goldman Sachs Alternatives was announced through a demerger from Mace Group.

This completed on 5 March 2026, with Mace Consult and Mace Group (which includes Mace Construct) now independent businesses. To continue, please choose whether you want to explore Mace Consult or Mace Construct.