1834 in architecture

The year 1834 in architecture involved some significant architectural events and new buildings.

• October 16 – Burning of Parliament: Much of the Palace of Westminster in London is destroyed by fire. Augustus Pugin is among the witnesses.
• The Institute of British Architects in London, predecessor of the Royal Institute of British Architects, is formed.
• First published scholarly description and drawings of a stave church, painter Johannes Flintoe's essay on Heddal Stave Church in Samlinger til det Norske Folks Sprog og Historie (Christiania).

• August 30 – The Alexander Column, Saint Petersburg, Russia, designed by Auguste de Montferrand, is unveiled.
• October 7 – Birmingham Town Hall in Birmingham, England, designed by Joseph Hansom and Edward Welch, is opened for the start of the Music Festival, already delayed by a year because of lack of funds.

• De Zwaluw, Hoogeveen, smock mill, Netherlands, built for Lucas Quirinus Robaard and Karsjen Meeuwes Steenbergen.
• Gurgi Mosque, Tripoli, Libya.
• Final reconstruction of the Presidential Palace, Vilnius, Lithuania, by Vasily Stasov.
• Reconstruction of the Narva Triumphal Arch in Saint Petersburg in stone by Vasily Stasov.

• Grand Prix de Rome, architecture: Paul-Eugène Lequeux.

• March 11 – E. W. Pugin, English ecclesiastical architect (d. 1875)
• March 24 – William Morris, English artist, writer and conservationist (d. 1896)
• April 5 – Robert Rowand Anderson, Scottish architect (d. 1921)
• April 7 – Alfred B. Mullett, English-born American architect (d. 1890)

• May 23 – Jānis Frīdrihs Baumanis, Latvian architect (d. 1891)
• August 2 – Frédéric Bartholdi, French sculptor (d. 1904)
• Date unknown – Giorgio Costantino Schinas, Maltese architect and civil engineer (d. 1894)

• September 2 – Thomas Telford, Scottish-born stonemason, architect and civil engineer (b. 1757)
• September 5 – Thomas Lee, English architect (b. 1794)