Spencer Thomas de Grey, CBE RA RIBA (born 1944) is a British architect.
On leaving Cambridge in 1969, he worked for the London Borough of Merton on one of the first middle schools in the United Kingdom.
During this period, he also worked on the unbuilt BBC Radio Centre and was responsible for the Sackler Galleries at the Royal Academy of Arts in London.
He was made a partner in 1991 and since then he has overseen a wide range of projects, including Cambridge Law Faculty, the Commerzbank Headquarters in Frankfurt, the Great Court at the British Museum, the Great Glasshouse at the National Botanic Garden of Wales, the World Squares for All Masterplan together with the implementation of its first phase at Trafalgar Square,[6] the redevelopment of Dresden Hauptbahnhof, The Sage Gateshead (Music Centre),[7] HM Treasury in Whitehall and nine City Academy schools in the UK.
He is responsible for a number of projects in the USA including the masterplan and first phase of the Boston Museum of Fine Arts,[8] the Winspear Opera House in Dallas,[9][10] Avery Fisher Hall at New York's Lincoln Center and the competition winning scheme for the National Portrait Gallery courtyard at the Smithsonian, Washington DC.