the (first) Freemason's Hall at Great Queen Street in central London, linking two houses purchased by the United Grand Lodge of England The building was opened with great ceremony on 23 May 1776, when the title of 'Grand Architect' was conferred on him by the Freemasons. The Hall was extended in the 1820s by Sir John Soane, but was demolished in 1930 after suffering irreparable structural damage in a fire in 1883. Sandby designed a carved oak altar-screen for St. George's Chapel, Windsor Castle, and a stone bridge over the Thames at Staines, opened in 1796, but removed a few years afterwards on account of its insecurity. He built several houses in the neighbourhood of Windsor, including St Leonard's Hill for the Duchess of Gloucester, and one for a Colonel Deacon, later known as "Holly Grove". Designs exist for many others of his architectural works which cannot now be identified. In 1777 he was appointed, jointly with James Adam, architect of his majesty's works, and in 1780 master-carpenter of his majesty's works in England. Family Sandby was twice married. The name of his first wife is stated to have been Schultz. He married his second wife, Elizabeth Venables (1733–82), on 26 April 1753. She had a dowry of £2,000, and bore him ten children, six of whom (five daughters and one son) survived him. In his will, and in some simple verses addressed to his daughters after their mother's death, he named only four daughters, Harriott, Charlotte, Maria, and Ann, omitting his eldest girl, Elizabeth, who was twice married, and is said to have died in about 1809. His daughter Harriott married (1786) Thomas Paul, the second son of his brother Paul, and kept house for her father after her mother's death. Eight of her thirteen children were born at the deputy ranger's lodge. Death Sandby died at the deputy ranger's lodge in Windsor Park on Monday, 25 June 1798, and was buried in the churchyard of Old Windsor. Legacy Though he was self-educated as an architect, and left few buildings by which his capacity can be tested, the Freemasons' Hall showed no ordinary taste, while of his skill as an engineer and landscape-gardener Windsor Great Park and Virginia Water are a permanent record. He was an excellent and versatile draughtsman, and so skilful in the use of watercolour that his name deserves to be associated with that of his