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  • image SM (139) 49/4/6

Reference number

SM (139) 49/4/6


Design for the Downing Street elevation, March 1825


139 Sketch of a Design for the Front next Downing Street; (verso) unidentified part plan and unfinished elevation of Privy Council Offices


bar scale of 1/6 inch to 1 foot


as above, New Council Offices &c, Mem[orandum] - 7th March 1825 - The parts AAA settled by the Chancellor of the / Exchequer to be executed in Stone, labelled: A (5 times) and (pencil) some calculations

Signed and dated

  • March 1825 and as above ('7th March 1825')

Medium and dimensions

Pen, sepia and yellow ochre washes, (verso) pen, pencil, pink and sepia washes, pricked for transfer on one sheet of wove and one sheet of laid paper, affixed, with one fold mark (370 x 912)


David Mocatta (1806-82, pupil 1821-27)


Drawing 139 presumably showed the Downing Street frontage up to the end of the Privy Council Chamber before a further seven bays of the elevation were added on another sheet of paper. The drawing has two variant designs for the attic over the end bays which are similar in appearance but differ in proportions. The rusticated courses on the ground floor were 'settled to be executed in stone' by the Chancellor of the Exchequer.
The verso has part of a design for alterations to an unidentified building with a spiral staircase and an unfinished elevation of part of the Privy Council offices.



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Sir John Soane's collection includes some 30,000 architectural, design and topographical drawings which is a very important resource for scholars worldwide. His was the first architect’s collection to attempt to preserve the best in design for the architectural profession in the future, and it did so by assembling as exemplars surviving drawings by great Renaissance masters and by the leading architects in Britain in the 17th and 18th centuries and his near contemporaries such as Sir William Chambers, Robert Adam and George Dance the Younger. These drawings sit side by side with 9,000 drawings in Soane’s own hand or those of the pupils in his office, covering his early work as a student, his time in Italy and the drawings produced in the course of his architectural practice from 1780 until the 1830s.

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