The project was procured via the North West Construction Hub framework and ISG will start on site in November.

Restoration of existing historic features will include the removal of false ceilings to reveal ornate cornices, conservation of parquet flooring and elm floorboards and sensitive removal of plaster finishes on the walls to expose decorative Victorian tiling and brickwork.

ISG will create a new reception area on the ground floor, where original stained glass windows will be revealed to enhance the visual appearance of the foyer.

Externally, the company will also carry out repairs to the roof, chimneys and windows, working with English Heritage throughout the project to ensure that all restoration elements are carried out sensitively and in full compliance with listed building requirements.

ISG will also install new mechanical and electrical services.

Andy Mallice, ISG’s Northern regional managing director, said: “This challenging project will help to restore and safeguard the future for this iconic regional building.

“The scheme is an exciting blend of traditional building conservation and contemporary office planning, with a state-of-the-art service installation and a focus on reducing overall running costs and delivering a building that better serves the local community.

“A key element of the project is the opportunity it gives us to support and invest in the local economy, and this means that we will be actively looking to locally source materials and the workforce required to deliver the scheme.

“We are also committed to providing a long-lasting legacy within the communities where we work, and will be forging links with local colleges and apprenticeship providers to create a range of training opportunities for local residents throughout the duration of the redevelopment.”