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 ) .