|Covid-19|December 23 - The Nizamat Imambara, in Murshidabad, India built by Nawab Siraj ud-Daulah, having been partially burnt down in 1842, is completely destroyed in another fire.
January 16 - Shree Govindajee Temple in Imphal, Manipur, commissioned by Raja Nara Singh.
March 7 - Grace Church (Manhattan), New York City, United States, designed by James Renwick, Jr., is consecrated.
May 12 - Our Lady of Lebanon Maronite Cathedral (Brooklyn) holds its first service.
May 21 - Trinity Church (Manhattan) in Wall Street, New York City, designed by Richard Upjohn, is consecrated.
July 30 - Albert Dock in Liverpool, England, officially opened by Prince Albert, husband of Queen Victoria.
August 4 - Dublin Kingsbridge railway station in Ireland, designed by Sancton Wood.
August 31 - St Giles' Catholic Church, Cheadle in England, designed by Augustus Pugin, is concsecrated.
September 1 - Pasig River Light, the first lighthouse erected in the Philippines, is lit.
September 22 - Lancaster Castle railway station in England, designed by William Tite.
December 24 - Needham, Stowmarket and Thurston railway stations in Suffolk, England, designed by Frederick Barnes (station buildings completed 1847/9).
Macau Government House, built as a private home by Macanese architect Thomaz de Aquino.
Murney Tower, Kingston, Ontario, Canada.
Newstead House, Brisbane, Australia.
Notre-Dame de Bon-Port, Nantes, France, designed by Seheult and Joseph-Fleury Chenantais.
Llandinam Bridge in Montgomeryshire, Wales, designed by Thomas Penson.
Grand Prix de Rome, architecture: Alfred-Nicolas Normand.
September 4 - Daniel Burnham, American architect and urban designer (died 1912)
January 22 - Louis Baltard, French architect and engraver (born 1764)
1846 in architecture Wikipedia
The year 1846 in architecture involved some significant architectural events and new buildings.