The year 1915 in architecture involved some significant architectural events and new buildings.

Buildings and structures

Buildings opened

• April – The Hiroshima Prefectural Commercial Exhibition, designed by Jan Letzel, is opened; it becomes the Hiroshima Peace Memorial.
• April 21 – Theatre Circo, Braga, Portugal.^[1]
• November 6 – Tunkhannock Viaduct, Nicholson, Pennsylvania, designed by Abraham Burton Cohen.

Buildings completed

• Prince of Wales Museum of Western India, Bombay, designed by George Wittet.^[2]
• Kumarakottam Temple, Kanchipuram, India rebuilt.
• Yosemite Lodge at the Falls, Yosemite Village, California.
• Well Hall Estate for arsenal workers at Woolwich in south-east London, designed by Frank Baines.

Awards

• RIBA Royal Gold Medal – Frank Darling.
• Grand Prix de Rome, architecture: not held.

Births

• April 22 – Edward Larrabee Barnes, American architect (died 2004)
• May 8 – Laurent Chappis, French architect and town planner (died 2013)
• October 4 – Beverly Loraine Greene, African American architect (died 1957)
• December 12 – Tobias Faber, Danish architect and academic (died 2010)
• December 31 – George Pace, English ecclesiastical architect (died 1975)

Deaths

• February 17 – George Franklin Barber, American residential architect (born 1854)
• April 17 – Philip Webb, English architect (born 1831)
• May 28 – Robert Chisholm, British "Indo-Saracenic" architect (born 1840)^[3]
• June 25 – John James Clark, Australian architect (born 1838)
• July 11 – Albert Schickedanz, Austro-Hungarian architect and painter in the Eclectic style (born 1846)