Millennium Hotel London Mayfair is to reopen in spring 2019 as part of a rebrand project with Hilton and Millennium & Copthorne Hotels.
The Biltmore, Mayfair will be the first UK property from LXR Hotels & Resorts when it is launched later this year.
The property has been closed since July 2018 to undergo a multi-million-pound redevelopment, with its new design spearheaded by Goddard Littlefair.
In addition, the hotel will showcase a 500 sqm ballroom, and the smaller Waterloo, Manhattan and Kendal Suites.
Last year LXR, a collection of independent hotels, launched its first hotel in Dubai at Habtoor Palace, a 234-bedroom luxury hotel situated on Sheikh Zayed Road.
Mr Tan Kian Seng, interim group chief executive officer of Millennium & Copthorne Hotels plc, said: "We are excited to introduce our flagship hotel, The Biltmore, Mayfair, in conjunction with Hilton's new luxury collection - LXR Hotels & Resorts. This hotel located on the prestigious Grosvenor Square in Mayfair, has undergone a complete refurbishment. With its prime location, bespoke products, and quintessential services under LXR, The Biltmore, Mayfair will be fit for royalty, well-travelled guests from around the world and senior corporate executives. We look forward to welcoming our first customers in the coming spring."