What building material was used to build buckingham palace

. The Duke of Buckingham’s house of c. 1703 was made of red brick; the cellars remain intact and illustration show the red brick was used for facing, with stone details. George III added elements but what you presently see is basically a rebuilding of the 1820s by John Nash, clad in Bath Stone (a Jurassic limestone of high qualit and golden colour) and Sir Aston Webb’s east facade of 1910 in Portland Stone, another, whiter Jurassic limetone from Dorset, used in London since the seventeenth century.