1911 in architecture

The year 1911 in architecture involved some significant architectural events and new buildings.

• March 25 – The Triangle Shirtwaist Factory fire shows up the need for improved safety standards in New York City buildings.
• April 4 – Foundation stone of Castle Drogo, a country house in Devon, England designed by Edwin Lutyens, laid; it will not be completed until 1930.
• May 23 – The competition to design Canberra, Australia's new capital, is won by American architect Walter Burley Griffin. In the same year, Griffin marries fellow architect Marion Lucy Mahony.

• May 23 – New York Public Library Main Branch, designed by Carrère and Hastings.
• September 12 – Theatro Municipal (São Paulo), designed by Ramos de Azevedo.
• c. September – Altare della Patria (Monumento Nazionale a Vittorio Emanuele II) in Rome, designed by Giuseppe Sacconi (died 1905) in 1884 inaugurated; it will not be completed until 1925.

• Brasserie Excelsior and Angleterre Hotel in Nancy, France, designed by Lucien Weissenburger and Alexander Mienville, with ironwork and interiors by Louis Majorelle and stained glass by Jacques Grüber.
• Fagus Factory at Alfeld, an der Leine, designed by Walter Gropius and Adolf Meyer.
• American Bank Note Company Printing Plant in New York City, designed by Kirby, Petit & Green.
• Frank Lloyd Wright builds his Taliesin house and studio in Spring Green, Wisconsin.
• Horwood House in Buckinghamshire, England, designed by Detmar Blow, is completed.
• King Edward Building for the General Post Office in the City of London, designed by Henry Tanner, an early use of Hennebique reinforced concrete.
• Royal Liver Building, Liverpool, England, designed by Walter Aubrey Thomas.
• Eagle Insurance Building, Manchester, England, designed by Charles Heathcote.
• New City Hall (Prague), designed by Osvald Polívka.
• Church of St Cuthbert Mayne, Launceston, Cornwall, designed by Arthur Langdon.
• Berlin-Pankow station, designed by Karl Cornelius and Ernst Schwartz.
• Monroe Street Bridge in Spokane, Washington.

• AIA Gold Medal – George Browne Post.
• RIBA Royal Gold Medal – Wilhelm Dorpfeld.
• Grand Prix de Rome, architecture: René Mirland.

• March 24 – Jane Drew, English modernist architect and town planner (died 1996)
• July 16 – John Lautner, American architect (died 1994)
• December – Tom Ellis, English architect (died 1988)
• David Wyn Roberts, Welsh-born architect (died 1982)

• February 5 – Adolf Eichler, German architect working in Baku (suicide; born 1869)
• November 15 – Philip Gengembre Hubert, French-born New York architect (born 1830)