A report by Purcell Miller Tritton, architects, was prepared in 2008. A copy is kept in the Green Box files at the Soane Museum (pages 38-41 including photographs). Useful information given includes, for example: 'It appears that the Marquis was keen to have heraldic shields displayed in the library, against Soane's better judgement. He was persuaded by Soane not to have them incorporated in the ceiling plasterwork but instead to incoporate them in the tracery of the bookcase doors. Although the doors were made to take the shields it seems that idea was abandoned and replaced with the central ceiling roundel containing 726 armorial bearings of the Grenville, Temple, Nugent and Chandos families, signed and dated P.Sonard 1806. Soane had proposed but a single shields in the roundel.'