Partial elevation of a single-storey building with a Doric colonnade by leading architect and designer Sir William Chambers (1723-1796). The drawing evidently records, in simplified form, the service wing of a Palladian villa. Possible candidates include the Villas Angarana, Zen and Badoer. The sheet has been trimmed along the right-hand edge and so shows only part of the building. To the left is the end elevation of a projecting wing. It is undecorated except for a keystone and two similar plain stone imposts around an arched doorway, placed off centre. To the right are the first two columns of a colonnade with a further arched opening behind.

Chambers was born in Sweden and died in London. He travelled widely, visiting China, and studied architecture at the Ecole des Arts, Paris, from 1749 and in Italy from 1750 to 1755. Many of his drawings from this period are contained in his important 'Franco-Italian' album, held in the V&A. Chambers moved to London in 1755 and published his influential Treatise on Civil Architecture in 1759. Chambers demonstrated the breadth of his style in buildings such as Gower (later Carrington) House and Melbourne House, London, in such country houses as Duddingston, Scotland, and in the garden architecture he designed for Wilton House, Wiltshire, and at Kew Gardens. He became head of government building in 1782, and in this capacity built Somerset House, London.