2 large prints of the survey of the old lion house, originally designed by Antony Salvin Jr (1875-7) which was replaced by the New Lion Terraces in 1976

Licences and plans of proposed London Zoo buildings, many of which were temporary structures, or not eventually built. Includes: large map of London Zoo in 1911 with position of proposed shelter marked, and plans of shelter, 1914; plans of proposed new aviary, 1906; plan of temporary shelters for HM The King's Indian Collection, 1912; plan of Proposed Wood & Iron Addition to the Prosector's Building, 1904; layout of Poultry Culture Exhibition, 1917; fire certificate Tea Pavilion Mappin Terraces, 1914; fire certificate Main Offices, 1910; temporary buildings extension, 1934. 

Plan, section and elevation drawings relating to the construction of the ZSL Main Offices (and Library) at Regent's Park, dated January 1909 to March 1910. Included are details of elements reused from Hanover Square. Alterations to Library, 1964-1967. Some hand annotations and doodles. Architect/engineer/designer: J Belcher, Architect; Werner, Pfleiderer & Perkins Ltd, Engineers; J Jeffreys & Co, Heating and Ventilation Engineers; A Smith & Stevens, Lift Engineers. 

Contracts, agreements, specifications and plans for the Main Office refurbishment at Regent's Park

Plan showing alterations to the Zoological Society of London Meeting Room (now ZSL Library)

Plan, section and elevation drawings and blueprints relating to the construction of the Aquarium, London Zoo, dated July 1922 to August 1923. Also included are typewritten notes on the tank specifications; one sheet giving details for doors of the tea pavillion on the Mappin Terrace, dated February 1926. Some hand annotations and watercolour details added. Architect/engin

Plan, section and elevation drawings relating to the construction of the Aquarium, London Zoo, dated May 1922 to March 1923, and the remodelling, dated April to May 1956. Also included is a section blueprint of the proposed aquarium planned with the construction of the Mappin Terrace, dated April 1913. Some hand annotations and watercolour details added. Architect/engin eer/designer: Sir Alexander Gibb & Partners, Engineers; Belcher & Joass, Architects; CA & AW Haward Ltd, Engineers; ZSL Architects' Department. 

Estimate for the Formation of the Proposed Aquarium under the Mappin Terraces, 1922; Building Contract between ZSL and J Jarvis & Sons, 1922; notes on progress, 1923; details of costs, 1924; plan of new flue pipe in the Aquarium, undated.

Correspondence and memos on the Aquarium

Report by Oscar Faber on London Zoo Aquarium Services Building and Operational Services

Report of guide to indicative cost for the refurbishment of the Aquarium building at London Zoo for Zoo Operations Limited by Gardiner & Theobald

Report on the structure of London Zoo Aquarium by Oscar Faber

Proposal for a new Aquarium and coral reef at London Zoo

Plans for a new Aquarium at ZSL London Zoo

Plan, section and elevation drawings relating to the construction of the Regent Building restaurant, dated September 1927-February 1929. Some hand annotations and watercolour detail.

Schedules of works, contract, specifications and plans

Minutes of the Layout Committee

Papers relating to the planning of Regent's Park, including photographs, reports, plans and minutes

Papers regarding the replanning scheme at Regent's Park, including plans, photographs and reports

Correspondence with the Architect's Department regarding Zoo buildings

General correspondence and papers regarding the New Zoo

Minutes of the New Zoo Committee

Papers of the New Zoo Committee, including photographs, plans, memorandums, correspondence and briefs

General papers relating to the New Zoo, including plans, correspondence, minutes of meetings, memorandums and development plans

Papers regarding the redevelopment of the Regent's Park Gardens, including memorandums, a pamphlet on the history of London Zoo, a statement made by the Minister of Public Building and Works and journal articles

Papers regarding Regent's Park development, including correspondence, plans, minutes and reports

Maps of the 1952 development plan of London Zoo

Papers and plans relating to the development of the central area at ZSL London Zoo, including pavilion and shop

Includes: memos from the Layout Committee; letters from Lubetkin to Huxley; costings; Contract with Tecton; copy of 'The Architect and Building News', June 1944; handwritten notes; specifications. Includes correspondence with Burnet, Tait and Lorne; and with Tecton. Also mentions other abandoned schemes by Tecton for Gibbon House, Children's Zoo, South Gate. Includes correspondence between Huxley and the Maharajah of Bhavnagar and J Ellerman about funding; with Sir Harry Boyd of the Home Office concerning Royal patronage. Correspondence with Zoo Directors in Chicago, Dresden, Stellingen about their elephant houses.

By Tecton. Includes related correspondence and memos.

Concerning the new plans by Casson Conder and partners

Papers regarding the presentation of the RIBA Architecture Award Elephant and Rhinoceros Pavilion

Plan, section and elevation drawings relating to the construction of the West Gate Services Building (Works Department), London Zoo, dated January 1955-September 1959. Some hand annotations. Architect/engin

Plan, section and elevation drawings of the West Gate Services Building, London Zoo, dated June 1951 to March 1959. Some hand annotations. Architect/engin

Plan of a new changing room for Boiler House staff

Plans showing proposed ground staff facilities at ZSL London Zoo

Plan, section and elevation drawings relating to the construction of the Quarantine and Sanatorium Building, London Zoo, dated January-

Correspondence, memorandums and accounts regarding the new Sanatorium and Quarantine Station

Papers regarding the Michael Sobell Pavilions for Apes and Monkeys at ZSL London Zoo, including Council minutes, memorandums, briefs, plans and correspondence

Plans of a Primate House that was never built. Undated, but possibly 1960s.

Papers regarding the new Primate House at ZSL London Zoo, including reports, briefs, plans, estimate and photographs

Floor plans of the South Block of the Primate Centre at ZSL London Zoo

Drawings showing the design, layout and details of several buildings built 1957-1961 at the entrance to Whipsnade Zoo (16 items). Map and plan of Whipsnade, 1996 (2 items).

Paper relating to the Carnivore Complex at ZSL London Zoo, including correspondence, estimates and meeting minutes

Correspondence and estimates regarding the Casson Footbridge

Correspondence, memorandums and papers regarding the Cotton Terraces and modernisation of the Giraffe House

Correspondence between the Zoological Society of London, Peter Shepheard of Bridgwater Shepheard and Epstein, and Franz Stengelhofen regarding the Cotton Terraces, including the surfacing of paddocks, tree planting, blanket weeds in moats, and a felling and planting policy

Plan and section drawings relating to the remodelling of the Giraffe House, London Zoo. Some hand annotations. Architect/engin

Architect's fees and costs of the Aviary

Discussions on plants for the Aviary

Working Party advising on the Snowdon Aviary.

Files about a proposed dolphinarium, never built

Proposals, correspondence, memorandums, estimates and plans for The Charles Clore Pavilion for Mammals at ZSL London Zoo

Plan of Regent's Park

Plan of London Zoo, dated July 1994. Photocopy. Architect/engin​eer/designer: Wharmby Architects

General plan of ZSL London Zoo

Plans showing the diagrammatic layout of ZSL London Zoo

Paper by Geoffrey Schomberg on the 'General Principles of Zoo Design'

Plan showing the dates of buildings standing in June 1976

Plan of ZSL London Zoo with existing and proposed tannoy speakers marked in red

Plan of ZSL London Zoo

List of houses and stations at ZSL London Zoo, placed in relative order of importance taking 100% as the basic rate

Correspondence, licences and deeds of covenant regarding land at Regent's Park

Unidentified plan of ZSL London Zoo

Regent's Park plans showing the site of London Zoo

Papers regarding to the new cat enclosures at ZSL London Zoo, including memorandums, meeting minutes, plans, correspondence and briefs

Plan from the Large Cats Redevelopment Project at ZSL London Zoo

Summaries, estimates, proposals and correspondence regarding the new Education Centre/Zoo Studies Centre at ZSL London Zoo

Report and plans for the Education Centre at ZSL London Zoo

Report and plans for the Education Centre at ZSL London Zoo

Papers regarding the proposal to establish a Teachers Centre to be integrated with the ZSL Education Centre

Papers regarding the new Lion Terraces at ZSL London Zoo, including memorandums, plans, estimates and correspondence

Press cuttings, plans and drawings regarding the new Lion Terraces at ZSL London Zoo

Report on tenders, correspondence and papers on the Main Gate Modifications at ZSL London Zoo

Plans of signs at the Main Gate of London Zoo

Plan showing the revised layout and elevations at the Main Gate of London Zoo

Plan showing the proposed extension to the Main Entrance at ZSL London Zoo

Plan showing the revised layout and elevations at the Main Gate of ZSL London Zoo

Plan showing the repositioning of kiosks at the Main Gate of ZSL London Zoo

Plan showing the a proposed mess room and toilet at the Main Gate of ZSL London Zoo

Plans for the modification of an enclosure to be filmed in a scene in the film Harry Potter and the Philosopher's Stone .

Contract documents, specifications and plans for the Tropical Bird House, ZSL London Zoo

Press release for the Tropical Bird House, which had been altered, repainted and planted with a large variety of tropical plants, and transformed into a "Walk-through Aviary" - the first of its kind at London Zoo

Proposed alterations to the lavatories at the Mappin Pavilion

Plan showing the details of the base and base wall of the Raven's Cage at London Zoo

Plan showing the emergency gates at the East Tunnel of ZSL London Zoo

Correspondence regarding the construction of a Small Mammal House at ZSL London Zoo

Plans of the Small Mammal House at ZSL London Zoo

Plan and section showing the Panda Pit at ZSL London Zoo

Plan of the Panda shelter at ZSL London Zoo

Plans showing alterations to the Panda House at ZSL London Zoo

Plans showing Panda traffic flow at ZSL London Zoo

Site 'A' survey and site boundaries of the Giant Panda Exhibit at ZSL London Zoo

Plans and drawings of the Baikal Seal Pond at ZSL London Zoo

Plans of the bird house for Carmine Bee Eaters

Paper describing the history and design of the Mappin Terraces at ZSL London Zoo

A supplemental report to a City of Westminster Planning application on the Mappin Terraces and the Aquarium redevelopment at London Zoo

Plan showing the emergency gates at the West Tunnel at ZSL London Zoo

Plans showing proposed alterations to the Great Ape Breeding Colony

Plan showing the Sobell enclosure conversion as part of the Giant Panda project

Certificate presented to the Architects Department of the Zoological Society of London by The Structural Steel Design Awards Scheme for the Michael Sobell Pavilions for Apes and Monkeys

Report by the Zoological Society of London on the Michael Sobell Pavilions for Apes and Monkeys

Plan showing the existing layout of the Noctural House at ZSL London Zoo

Plan showing the Aardvark exhibit in the Noctural House at ZSL London Zoo

Plan showing the proposed landscaping of the Gibbons Cage at ZSL London Zoo

Preliminary proposal for an elevated monorail at London Zoo by Pleasurerail Limited

Proposed monorail system for London Zoo by Pleasurerail Limited

Proposal by Burrell Hayward & Budd, Walter Llewellyn & Sons Ltd for the refurbishment of the Penguin Pool at ZSL London Zoo

Plans for new laboratories at London Zoo

Plans and sections of Three Islands Pond at London Zoo

Correspondence, plans and minutes of meetings of the Nuffield Institute of Comparative Medicine