In December 2003, the Council decided to consider moving properties. A Property Steering Group was set up to pursue the recommendation for finding new premises. The material in this series consists of a letter sent by Francis Robinson to members of the group in advance of the meeting of the group on 11 January 2005, and the Minutes for the Group's meeting on 10 February 2005.

In 2004, Chesterton Ltd. were instructed to provide a marketing report and advice on the disposal of 60 Queen's Gardens. This material contains correspondence between Chesterton and the Royal Asiatic Society, dated 11 May 2004- 25 November 2004. The material also contains correspondence between the Society and Manches LLP who sold the property to The Jordanian Book Centre, dated 11 March 2005-26 August 2005, when both sale of the Queen's Garden property and purchase of 14 Stephenson Way were complete.

The move of the Society from Queen's Gardens necessitated the sale of some furniture and curtains. This material includes correspondence with The Curtain Exchange, Lloyds International Auction Galleries, and Christie's. It also includes a Catalogue for Christie's Auction of Furniture and Decorative Objects held on 11 October 2005, when some of the Society's furniture was in the sale.

• "Camberwell students of conservation working at RAS" - 12 colour 35mm slides, dated March 1989
• "Basement Strongroom 1990-1991 during MSS Boxing programme" - 9 colour 35 mm slides
• Rooms 1990 - 5 colour 35mm slides
• B&W photographs of rooms, 1992, 3.5 x 2.5cm, 25 items with 29 corresponding negatives
• Basement strongroom c. 1994 - 6 colour 35mm slides
• Third floor conservation studio c.1995 - 7 colour 35mm slides
• B&W photographs of conservation studio c.1995, 5 items, 17.8 x 12.5 cm
• "Photographs of Basement Strong Room 1990-1996, Boxes of MSS in Basement Strong Room 1994" - 25 B&W photographs, 3.5 x 2.5cm
• "Old Conservation studio (3rd floor) 1989-1996, Old basement strongroom 1988-1996 - 25 B&W photographs, 3.5 x 2.5cm with corresponding negatives
• Rooms at Queen's Gardens, 1997, 16 colour 35mm slides
• "RAS Queen's Gardens October 1997 - 16 B&W photographs, 3.5 x 2.5cm with corresponding negatives
• Colour photographs of rooms - 8 of 14.7 x 10cm, dated June 1999; 1 of 13.5 x 10cm, undated
• Colour photographs of rooms at Queen's Gardens, June 2005 - 5 of 17.8 x 12.5cm

The Royal Asiatic Society rented rooms at 73 Collier Street from 2005-2006 while alterations were made at the newly purchased 14 Stephenson Way property. Items from this rental are:

• Plan of the rooms to be rented, dated 24 June 2005.
• Letter from Mark Winkler, Beaumont & Co., to Alison Ohta, Royal Asiatic Society, to set out the proposed head of terms for occupation of the rooms at 73 Collier Street, dated 30 June 2005.
• Licence Agreement between Manchester Square Properties Ltd. and the Royal Asiatic Society regarding the rental of the rooms for the time period 14 July 2005-13 July 2006. Signed and dated 13 July 2005.
• Letter from Alison Ohta, Curator, Royal Asiatic Society, to The Manager, Lloyds TSB Bank, Baywater Branch, to agree payment to Manchester Square Properties Ltd., dated 13 July 2005.
• "List of Furniture to take to Collier Street" - inventory of furniture, undated.
• "Notification of Change of Address from Queen's Gardens to 73 Collier Street - 2 printed cards.

In 1973 the Royal Asiatic Society celebrated its Sesquicentenary (150 years). The archival material includes Planning committee administration; material connected with the various events held, exhibitions put on and publications produced in celebration of the occasion; and material concerned with fundraising for the Society.

Notifications, Agendas and Minutes of Meetings of the Sesquicentenary Planning Committee. Includes some signed minutes. The Sesquicentenary Committee was established to oversee the organisation of the celebrations. The first meeting was held on 27 November 1968. They continued to meet even after the Sesquicentenary to administer the funds and give a progress report. In the Minutes for 9 January 1975, it was noted that arrangements were approved for the dissolution of the Committee on 19 February 1975.

Administrative lists concerned with the organisation of the Sesquicentenary celebrations. These are:

• "Sesquicentenary Committee", 1972-1973
• "Sesquicentenary Celebrations 1973" - Committee, 1971, 1974/5
• "Synopsis" - sheet of plans and events
• "Social Occasions" - listing Dinner, Reception and Concert
• "Summary of Minutes Concerning Exhibitions"
• "Appeals" listing fund-raising ideas
• "1973 Tentative Calendar of Events"
• "Royal Asiatic Society" - listing items within the Collections
• "Sesquicentenary" - summarising the different components of the celebrations
• "Sesquicentenary Reception" - Proposed list of guests - 2 versions

Printed material to advertise the Royal Asiatic Society and list the Events for its Sesquicentenary Celebrations.

"The Royal Asiatic Society: Its activities and objectives" Pamphlet defining the Society's role and to encourage application for membership.