A1 1:20 scale plan for toilet cubicles. Dated 'July', with damage to corner obscuring year.

Plan of third floor ductwork layout, dated June 1991. Drawn by 'PJS' at Air Circulation & Design Ltd.

Plan of third floor air conditioning control panel, dated July 1991. Drawn by 'M.P.' at Air Circulation & Design Ltd.

Existing layout of tankroom and proposed layout of tankroom, with schedule of works to be undertaken. Dated July 1991.

A1 plan for 'Mechanical Services Provisions New Hall 2nd Floor'. Drawn by 'GJW' at Austin-Smith: Lord and fated April 1991.

Plan of second floor ductwork layout, dated 17/07/1991. Drawn by 'PJS' at Air Circulation & Design Ltd.

Plan of second floor air conditioning control panel. Drawn by Air Circulation & Design Ltd. Undated by presumably 1991, based on other plans for the same project in collection.

Floorplan of New Horticultural Hall main floor showing lighting points, power points, telephones, water, gas, and drains. Annotated with plans for exhibitor sites. Produced by John Lansdell.

Floorplan of New Horticultural Hall main floor showing lighting points, power points, telephones, water, gas, and drains. Annotated with plans for cabling layout. Produced by John Lansdell.

Copy of floorplan of New Horticultural Hall main floor. Produced by John Lansdell.