The year 1849 in architecture involved some significant events.

Buildings and structures

Buildings

• March 1 – Ashby railway station, Leicestershire, England, probably designed by Robert Chaplin, opened.^[1]
• May 1 – Stone railway station, Staffordshire, England, designed by H. A. Hunt, opened.
• September 2 – Gare de l'Est railway station in Paris (France), designed by François Duquesnay, opened.
• October 30 – London Coal Exchange opened.
• December 1 – Gothenburg City Hall (Sweden), designed by Pehr Johan Ekman, opened.
• Church of the Immaculate Conception, Farm Street, central London, designed by Joseph John Scoles, completed.
• All Saints, Ennismore Gardens, south London, designed by Lewis Vulliamy, interior completed.
• Boston Custom House (Massachusetts), designed by Ammi B. Young, completed.
• Rich-Twinn Octagon House, Akron, New York, built.

Events

• March – The Journal of Design and Manufactures is established by Henry Cole.
• May – The Seven Lamps of Architecture by John Ruskin is published.

Awards

• RIBA Royal Gold Medal – Luigi Canina.
• Grand Prix de Rome, architecture – Denis Lebouteux.

Births

• January 9 – Gaetano Koch, Italian architect (died 1910)
• February 22 – Carl Holzmann, Austrian architect (died 1914)
• May 22 – Aston Webb, English architect (died 1930)
• August 29 – John Sulman, English-born Australian architect (died 1934)

Deaths

• April 18 – Carlo Rossi, Neapolitan-born architect working in Saint Petersburg (born 1775)
• September – Daniel Robertson, American-born architect and garden designer working in Oxford and Ireland (born c. 1770)
• Robert Cary Long, Jr., American architect working in Baltimore (born 1810)
• John Pinch the younger, English architect working in Bath (born 1796)