Four contractors have been shortlisted for the chance to build a £30 million auction house on New Bond Street, Construction News understands.
Under the plans, which were given the green light last month, three salesrooms, preview galleries, a cafe and new workspace will be added.
The gross development value for the project is worth around £30m while the construction contract is likely to be in the region of £11m.
The new building was designed by Lifschutz Davidson Sandilands.
Gardiner and Theobold is managing the project and Mott MacDonald is acting as mechanical and electrical consultant.