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The year 1947 in architecture involved some significant events.

• February–June – Initial proposals for the Headquarters of the United Nations in New York City are drawn up.
• April – Initial proposals for Point Park Civic Center in Pittsburgh by Frank Lloyd Wright are presented.
• Bankside Power Station, London, designed by Sir Giles Gilbert Scott (completed in early 1960s; converted to Tate Modern art gallery in late 1990s).
• Le Corbusier commences construction of the Cité radieuse, Marseille.
• Reconstruction plan for the French city of Nantes by Michel Roux-Spitz is approved.
• Jože Plečnik proposes plans for the "Plečnik Parliament" overlooking Ljubljana.

• The Berkeley Building, or "Old" John Hancock Tower in Boston, Massachusetts, United States, designed by Cram and Ferguson.
• 75 Rockefeller Plaza in New York City.
• Altino Arantes Building in São Paulo, Brazil, designed by Plínio Botelho do Amaral with the contractors, Camargo & Mesquita.
• Wachovia Building (Mobile), Alabama, designed by Platt Roberts & Associates.
• Nizami Mausoleum, Ganja, Azerbaijan (replaced 1991).^[1]
• Cathedral of San Carlos de Bariloche, Argentina, designed by Alejandro Bustillo.
• St. Josaphat Cathedral, McCauley, Edmonton, Alberta, designed by Reverend Philip Ruh.
• Zushi Temple, New Taipei City, Taiwan, designed by Li Meishu.
• Avenel Cooperative Housing Project in Los Angeles, California, designed by Gregory Ain.
• Hearst Castle, California, designed by Julia Morgan (construction, begun in 1919, ceases).
• Delano hotel, Miami Beach, designed by Robert Swartburg.

• AIA Gold Medal – Eliel Saarinen
• RIBA Royal Gold Medal – Albert Edward Richardson

• March 8 – Foad Rafii, Iranian architect working in Canada
• March 22 – George Ferguson, English architect and politician working in Bristol
• April 20 – Mark Fisher, English architect specialising in rock music stage sets (died 2013)
• June 24 – Ian Ritchie, English architect working internationally
• November 10 – Patrick Berger, French architect
• December 9 – Steven Holl, American architect
• December 12 – Will Alsop, English architect (died 2018)
• December 21 – Jacques Lucan, French architect
• Aykut Karaman, Turkish architect

• January 22 – Max Berg, German architect (born 1870)
• February 21 – Richard Barry Parker, English architect and urban planner (born 1867)
• April 1 – Carl Krayl, German architect (born 1890)
• June 6 – José Marques da Silva, Portuguese architect (born 1869)
• August 5 – Charles Bateman, English architect (born 1863)
• September 9 – Victor Horta, Belgian architect (born 1861)
• October 1 – James Gamble Rogers, American architect (born 1867)
• November 5 – Fritz Schumacher, German architect (born 1869)
• November 20 – Walter J. Mathews, American architect working in California (born 1850)
• November 28
  • James Miller, Scottish architect (born 1860)
  • Cecil Wood, New Zealand architect (born 1878)
• Vjekoslav Bastl, Croatian secessionist architect working in Zagreb (born 1872)
• Frank Chouteau Brown, American architect (born 1876)
• Henrietta Cuttino Dozier, American architect working in the southern states (born 1872)
• Squire J. Vickers, American architect working on the New York City Subway (born 1872)
• Francis W. Wilson, American architect working in California (born 1870)