John Nash designed a building.
John Nash ( 18 January 1752 -- 13 May 1835 ) was a British architect responsible for much of the layout of Regency London under the patronage of the Prince Regent , and during his reign as George IV . His best-known buildings are the Royal Pavilion , Brighton , and Buckingham Palace ( though the facade facing The Mall is an early 20th-century remodelling by Aston Webb of an 1850s wing by Edward Blore , and thus is not Nash 's work ) . Many of his buildings were built by the property developer James Burton , who also lent him financial assistance when he encountered financial problems during his projects on Regent Street . Royal Pavilion . The current appearance of the Pavilion , with its domes and minarets , is the work of architect John Nash , who extended the building starting in 1815 .