The year 1843 in architecture involved some significant events.
Buildings and structures Buildings
March 25 – The Thames Tunnel in London, constructed by Isambard Kingdom Brunel and Marc Isambard Brunel, the oldest underwater tunnel in the world, opens to the public. Nelson's Column in London, designed by William Railton, is completed. McGill University's original building, later known as the Arts Building, is completed in Montreal by architect John Ostell.
Awards Grand Prix de Rome, architecture: Jacques-Martin Tétaz.
Births July 6 – Robert S. Roeschlaub, German-born architect working in Colorado (died 1923) November 29 – Gertrude Jekyll, English garden designer (died 1932)
Deaths January 13 – Peter Atkinson, English-born architect (born 1776)
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