1905 in architecture

The year 1905 in architecture involved some significant architectural events and new buildings.

• October 18 – London County Council's new street at Kingsway and redevelopment of Aldwych are opened.
• Work begins on Stoclet Palace, Brussels, designed by Josef Hoffmann.
• Work begins on Casa de les Punxes, Barcelona, designed by Josep Puig i Cadafalch.
• Formation of the Dresden Die Brücke expressionist architecture movement.

• February 27 – Berlin Cathedral in Berlin, Germany, is inaugurated.
• June 11 – National Theatre of Venezuela, Caracas, Venezuela
• September 27 – Arcade du Cinquantenaire in Brussels, Belgium, opened by Leopold II of Belgium.
• November – The Plaza Grill and Cinema, Ottawa, Kansas, possibly the oldest movie theater in the United States that is still in operation.

• January – Eitel Building in Downtown Seattle, Washington, United States, designed by William Doty van Siclen.
• Darwin D. Martin House in Buffalo, New York, United States, designed by Frank Lloyd Wright.
• Zacherlhaus in Vienna, Austria, designed by Jože Plečnik.
• Land Administration Building in Brisbane, Australia, designed by Thomas Pye.
• St. Stephen's Basilica in Budapest, Hungary, completed by József Kauser to an 1851 design by Miklós Ybl.
• Salepçioğlu Mosque in İzmir, Turkey.
• Chancel and lady chapel to St John the Divine, Richmond, London, England, designed by Arthur Grove.
• Hôtel de ville (city hall) in Sfax, Tunisia, designed by Raphaël Guy.
• National Library of Greece, Athens, designed by Theophil Hansen.
• Parliament House in Stockholm, Sweden is completed.
• Voewood, High Kelling, Norfolk, England, designed by E. S. Prior.
• Antwerpen-Centraal railway station in Belgium, designed by Louis Delacenserie.
• Murry Guggenheim House in West Long Branch, New Jersey, designed by Carrère and Hastings.

• RIBA Royal Gold Medal – Aston Webb.
• Grand Prix de Rome, architecture: Albert Henry Krehbiel.

• February 13 – Werner Schindler, Swiss architect and Olympic medallist (died 1986)
• March 19 – Albert Speer, German architect and Nazi minister during Adolf Hitler's regime (died 1981)
• April 4 – Erika Nõva, Estonian architect (died 1987)
• April 13 – Bernard Rudofsky, Moravian-born American writer, architect, collector, teacher, designer and social historian (died 1988)
• June 24 – Michael Scott, Irish architect (died 1989)
• December 18 – Roy Grounds, Australian architect (died 1981)

• March 9 – Ludvig Fenger, City Architect of Copenhagen (born 1833
• March 11 — William R. Walker, American architect based in Providence, Rhode Island (born 1830)
• July 24 – Adolf Cluss, German-born American engineer architect in Washington, D.C. (born 1825)^{[failed verification]}
• August 2 – Cesar Castellani, Maltese architect working in British Guiana
• August 22 – Alfred Waterhouse, English architect of the Gothic Revival (born 1830)