Buxton’s Octagon Hall is to close for up to 15 months for restoration work and structural repairs.
The Octagon, at the Pavilion Gardens, is a much-used facility, and hosts regular fairs, exhibitions and other events.
It will close after the Great Peak District Fair on October 12 and is expected to be closed for up to 15 months to allow repairs to be carried out to the roof of the dome.
The rest of the Pavilion Gardens complex is expected to remain open as usual.
High Peak Borough Councillor Tony Kemp said: “The Pavilion Gardens buildings form a unique complex with a Grade II heritage listing.
“Much of it dates back to the 1870s, the constituent buildings have been considerably modified over the years and a great deal of the maintenance history is unrecorded. As part of our conservation programme the buildings are carefully monitored but much of the structural fabric cannot be checked easily.
“New technology has enabled us to carry out an invasive condition survey to a level previously not possible and sadly this has flagged up a need for urgent and extensive repairs to the roof of the Octagon Hall. As responsible custodians of this historic building, we have taken the decision to close the hall later this year to enable these essential repairs to take place.
“We are extremely mindful of the impact this will have on all our customers, exhibitors and visitors, as well as our staff, and are working with them to minimise the disruption that will result from this closure.
“We will be making more information about the work, the timescales and alternative provisions for events available over the summer and will keep everyone informed of progress throughout the duration of the work.
“In the meantime, I should like to thank everyone for their patience and understanding as we work to preserve and protect one of the High Peak’s most valued public buildings.”