The year 1862 in architecture involved some significant architectural events and new buildings.

Buildings and structures

Buildings opened

• May 8 – Church of St Philip and St James, Oxford, designed by George Edmund Street.
• May 12 – Ulster Hall, Belfast, designed by William J. Barre.^[1]
• May 17 – Teatro Comunale Florence, Italy.
• November 19 – Brekke Church, Norway, designed by Christian Henrik Grosch.^[2]

Buildings completed

• Flushing Town Hall, Flushing, Queens, New York, USA.
• Iron Clad Building, Cooperstown, New York, USA, designed by James Bogardus.
• Laxmangarh Fort, Rajasthan, India.
• Peace College Main Building, Raleigh, North Carolina, USA.
• Propylaea (Munich), designed by Leo von Klenze.
• Rila Monastery, Bulgaria, by Alexi Rilets (reconstruction).
• Government House, Queensland, Brisbane, Australia, designed by Charles Tiffin.
• Treasury Building, Melbourne, Australia, designed by J. J. Clark in 1857 (when he was 19).^[3]
• Great Malvern railway station, England, designed by E. W. Elmslie.
• Bow Bridge (Central Park), New York, designed by Calvert Vaux.

Awards

• RIBA Royal Gold Medal – Robert Willis.
• Grand Prix de Rome, architecture: Wilbrod Chabrol [fr].

Births

• February 7 – Bernard Maybeck, American Arts and Crafts architect (died 1957)
• February 19 – Lev Kekushev, Russian Art Nouveau architect (died 1916–1919?)
• May 28 – Theodor Fischer, German architect (died 1938)
• June 9 – Herbert Baker, English architect working in South Africa (died 1946)
• October 21 – Folke Zettervall, Swedish architect (died 1955)
• October 31 – Gerald Horsley, British architect (died 1917)
• December 7 – Hans-Georg Tersling, Danish architect working in France (died 1920)

Deaths

• June 27 – John Henderson, Scottish ecclesiastical architect (born 1804)
• December – Thomas Oliver, English classical architect (born 1791)^[4]
• Thomas Ellis Owen, English architect working chiefly around Southsea (born 1805)