The National Gallery has announced a £25-£30m upgrade to mark its 200th anniversary in 2024.
The London gallery is inviting applications from interested design teams, who have until 18 March to make their submission.
The focus of the upgrade is on the gallery's public-facing amenities and will include renovating the lobby of the Grade I-listed Sainsbury Wing addition to the building.
National Gallery director Dr. Gabriele Finaldi said: “The dual challenge of a huge increase in visitor numbers and the changing expectations and needs of those visitors over the last 30 years, means we do need to look again at the spaces we have, and in particular the ground floor entrances and amenities.”
The gallery will create a shortlist of five teams, with a decision on the final choice expected in July 2021.