The Lyceum Theatre is to be treated to a £1 million refurbishment after securing funding from Arts Council England.
The Sheffield venue will receive air-conditioning, increased and improved toilet facilities, and new balcony seating as part of the extensive overhaul later this year.
A new sound system will also be installed along with improved technical facilities for touring companies.
A number of changes will also significantly reduce the theatre’s energy consumption and carbon footprint, including LED light fittings, a new building management system offering more precise control of the building’s heating and lighting, and the new PV panels on the roof.
Chief executive Dan Bates said: “We are thrilled to be awarded this significant amount to help us refurbish the Lyceum.
“The redevelopment that took place 25 years ago gave us a strong foundation on which to build – the beautiful, ornate features of the auditorium were lovingly restored and remain in excellent condition.
“Our task is to match the beauty of the building with its technical and operational capacity.
“The planned work will help us to significantly improve our facilities offering audiences the level of comfort they demand, and visiting companies the technical provision they expect.
“It will also support the organisation to operate the building in the most cost-effective and environmentally-friendly way possible.
“Alongside the Arts Council funding and a grant from Sheffield Council, we must raise an additional £433,000 to meet the final bill.
“However, I know how passionate the people of Sheffield are about this beautiful, historic building and that they will support us as best they can to achieve our target.”