The A-listed building in Pollok Country Park, which closed to the public last October, is to be transformed to create a dedicated space for special exhibitions and the conversion of offices into galleries.

The two-year construction programme will open up three floors of the building, including the basement stores, allowing much more of the 9,000 artworks collected by shipping merchant Sir William Burrell to be enjoyed by visitors.

An OJEU notice has now been published inviting contractors to bid for the prestigious project.

Up to five firms will be shortlisted for the Burrell Renaissance project, which is being managed by Gardiner & Theobald LLP and designed by John McAslan & Partners.

Planning permission for the entire £66 million refurbishment was granted last month.

Contractors have until June 29 to express an interest.