1931 in architecture

• December 5 – The Cathedral of Christ the Saviour in Moscow (1883) is dynamited.
• The first of the Architects (Registration) Acts is passed in the United Kingdom.
• The first of the historic districts in the United States is designated in Charleston, South Carolina, by the city government.

{{See also|Category:Buildings and structures completed in 1931}}

File:Sudbury Town stn main entrance.JPG in London, England]]

File:VillaSavoye.jpg in Paris, France]]

File:Boettcherstrasse01.jpg and Atlantis House on Böttcherstraße in Bremen, Germany]]

• January 22 – Haus des Rundfunks in Berlin, designed by Hans Poelzig, inaugurated as headquarters of German national broadcaster Reichs-Rundfunk-Gesellschaft.{{cite web|url=http://www.berlin.de/ba-charlottenburg-wilmersdorf/bezirk/kultur/haus_des_rundfunks.html|title=Haus des Rundfunks|work=Berlin|publisher=Bezirksamt Charlottenburg-Wilmersdorf|language=German|accessdate=2023-12-10}}
• January 23 – Viceroy's House, New Delhi, India, designed by Sir Edwin Lutyens, first occupied.
• May 1 – The Empire State Building is completed in New York City as the tallest building in the world.
• July 1 – The rebuilt Milano Centrale railway station opens in Italy.
• July 19 – Sudbury Town station on the London Underground Piccadilly line opens as rebuilt by Charles Holden, the first of his iconic modern designs for the network.{{cite book|first=David|last=Lawrence|title=Bright Underground spaces: the London Tube station architecture of Charles Holden|location=Harrow Weald|publisher=Capital Transport|year=2008|isbn=978-1-85414-320-4}}
• July – Royal Corinthian Yacht Club clubhouse, Burnham-on-Crouch, eastern England, designed by Joseph Emberton, is opened.{{cite web|title=Joseph Emberton, Architect|url=http://www.joseph-emberton.co.uk/|year=2004|accessdate=2015-04-04}}
• 21 West Street in New York City, designed by Starrett & van Vleck, completed.
• Villa Savoye in Paris, designed by Le Corbusier and his cousin, Pierre Jeanneret, using reinforced concrete and demonstrating Le Corbusier's Five Points of Architecture, is completed.{{cite web|url=http://tourisme.monuments-nationaux.fr/en/monuments/bdd/monument/48|title=Villa Savoye à Poissy|publisher=Centre des monuments nationaux|accessdate=2013-03-21}}{{cite book|last=Courland|first=Robert|title=Concrete Planet|publisher=Prometheus Books|location=Amherst, NY|year=2012|page=326}}
• Commerce Court North is completed in Toronto, Ontario and becomes the tallest building in the British Empire (1931–1962).
• George Washington Bridge the longest suspension bridge in the world by the length of central span (1931–1937), is completed.
• St Olaf House (Hay's Wharf head offices), Tooley Street, London Borough of Southwark, designed by H. S. Goodhart-Rendel.{{NHLE |num=1385977 |desc=St Olaf House (Grade II*) |accessdate=12 October 2011}}
• Raleigh Bicycle Company head offices in Nottingham, England, designed by Thomas Cecil Howitt, completed.{{cite web|url=https://www.bdonline.co.uk/news/nottingham-bike-hq-is-englands-400000th-listed-building/5095200.article|first=Elizabeth|last=Hopkirk|title=Nottingham bike HQ is England's 400,000th listed building|work=bd|date=2018-08-22|accessdate=2018-08-22}}
• Aiton & Co. factory office, Derby, England, designed by Norah Aiton and Betty Scott, completed.{{cite journal|title=The Forgotten Architecture of Vision: Aiton & Scott's Factory Office for Aiton & Co., Derby, 1930-1|first=Lynne|last=Walker|journal=Twentieth Century Architecture|issue=1|year=1994|pages=23–30|publisher=Twentieth Century Society|jstor=41859417}}
• India Tyres offices at Inchinnan, Scotland, designed by Thomas Wallis of Wallis, Gilbert and Partners, completed and opened.
• Atlantis House and Robinson Crusoe House in Böttcherstraße, Bremen, designed by Bernhard Hoetger, complete the street's construction in the style of Brick Expressionism.{{cite web|title=Sky Hall|work=Guidebook Bremen|url=http://www.belocal.net/bremen/sights/sky_hall/seite_1,6,2,1484.html|accessdate=2011-08-03|archive-url=https://web.archive.org/web/20160303225246/http://www.belocal.net/bremen/sights/sky_hall/seite_1,6,2,1484.html|archive-date=2016-03-03|url-status=dead}}
• City Hall, Hilversum, North Holland, designed by Willem Marinus Dudok, is completed.
• India Gate in New Delhi is completed.
• Student Union at the Royal Institute of Technology, Stockholm, designed by Sven Markelius and Uno Åhrén.
• South Houses, California Institute of Technology, Pasadena, designed by Gordon Kaufmann.
• Washington Singer Building on the Streatham Campus of the University of Exeter in England, designed by Vincent Harris.
• New Synagogue, Žilina, Czechoslovakia, designed by Peter Behrens, is completed.
• High and Over, Amersham, one of the first modernist houses in England, designed by Amyas Connell, is completed.
• House for two brothers in Brno, designed by Otto Eisler, is completed.{{Cite web |url=http://www.greatvillas.org/villas/czech-republic/the-villa-of-moritz-and-otto-eisler |title=The Villa of Moritz and Otto Eisler, Czech Republic - GreatVillas.org |access-date=2016-05-25 |archive-url=https://web.archive.org/web/20160701045543/http://www.greatvillas.org/villas/czech-republic/the-villa-of-moritz-and-otto-eisler |archive-date=2016-07-01 |url-status=dead }}
• Apartment Building at 342, Muntaner Street, Barcelona, designed by Josep Lluís Sert, is completed.
• The Home Insurance Building in Chicago, Illinois is demolished.
• Stella Maris on the island of Norderney by Dominikus Böhm is completed

• RIBA Royal Gold Medal – Edwin Cooper.
• Grand Prix de Rome, architecture: Georges Dengler.

File:Alessandro Mendini we Wrocławiu.jpg]]

• April 23 – Roland Paoletti, British architect (died 2013)
• May 3 – Aldo Rossi, Italian architect and designer (died 1997)
• May 7 – Ricardo Legorreta, Mexican architect (died 2011)
• May 29 – Mario Maioli, Italian architect and painter[https://www.mariomaioli.com Mario Maioli.]
• July 17 – Edward Cullinan, English architect (died 2019)
• July 23 – Arata Isozaki, Japanese architect (died 2022)
• August 16 – Alessandro Mendini, Italian architect and designer (died 2019)
• October 3 – Denise Scott Brown, Rhodesian-born American architect
• October 7 – Mark Girouard, English architectural writer and historian (died 2022){{cite news|url=https://www.telegraph.co.uk/obituaries/2022/08/17/mark-girouard-author-classic-works-architecture-social-history/|title=Mark Girouard, author of classic works on architecture and social history including Life in the English Country House – Obituary|work=The Daily Telegraph|location=London|date=2022-08-17}} {{subscription required}}

• March 7 – Theo van Doesburg, Dutch polymath, leader of De Stijl (born 1883)
• July 17 – William Lethaby, English Arts and Crafts architect and designer (born 1857)
• September 1 – Nahum Barnet, Melbourne-based Australian architect (born 1855)
• September 20 – Max Littmann, German architect (born 1862)
• December 3 – Frederick Walters, Scottish architect of the Victorian and Edwardian eras, notable for his Roman Catholic churches (born 1849)

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