There will be a wide range of items up for bidding from antique furniture and oil paintings to bedroom curtains.
Mandarin Oriental Hyde Park London which overlooks Hyde Park and Knightsbridge, will remain open through its transformation.
All of the bedrooms and suites will be refurbished and the entrance, lobby and reception areas will be redesigned.
The two restaurants plus meeting rooms and the ballroom will undergo a soft refurbishment. In addition, the façade of the building will also be revitalised.
The spa will continue to operate until June 2017, after which it will close for six months to allow for a significant expansion.
The Mandarin Oriental Hyde Park London auction will take place on 24-26 October in the Cadogan Suite Millennium Knightsbridge in Sloane St, London.
