Construction of Welwyn Garden City in England begins with Louis de Soissons as architect and town planner.
Edith Hughes establishes her own architectural practice, in Glasgow, the first British woman to do so.
In the first issue of the Purist art magazine L’ Esprit Nouveau co-founded by him, Charles-Édouard Jeanneret-Gris adopts the pseudonym Le Corbusier.
November 11 - The Cenotaph, Whitehall, London, designed by Edwin Lutyens.
Ajuria Enea, Vitoria-Gasteiz, Spain, designed by Alfredo Baeschlin.
Coliseum Theatre (Kuala Lumpur), Malaysia.
Manitoba Legislative Building in Winnipeg, Canada.
Oak Tower, Downtown Kansas City, Missouri, USA.
Oslo Synagogue, Norway.
Teatro Municipal (Lima), Peru.
AIA Gold Medal - Egerton Swartwout
Olympic silver medal - Holger Sinding-Larsen of Norway for Project for a gymnastics school (no other medals awarded)
Royal Gold Medal - Charles Louis Girault
Grand Prix de Rome, architecture: Michel Roux-Spitz
January 23 - Gottfried Böhm, German architect
July 16 - Peter Yates, English architect (died 1982)
September 2 - Romaldo Giurgola, Italian-American-Australian academic architect, professor and author
December 28 - Bruce McCarty, American architect
March 12 - Hermann Eggert, German architect (born 1888)
May 17 - Jean-Louis Pascal, academic French architect (born 1837)
May 18 - Frank Matcham, English theatrical architect and designer (born 1854)
July 31 - Thomas Tryon, American architect (born 1859)
October 22 - Ruggero Berlam, Italian architect (born 1854)
1920 in architecture Wikipedia
The year 1920 in architecture involved some significant events.