The cathedral was rebuilt between 1848 and 1850 after a plan by German-born architect,
Alexis de Chateauneuf (1799–1853). Another German-born architect,
Heinrich Ernst Schirmer (1814–1887) was the construction manager for the project. When Chateauneuf became ill in 1850, Schirmer retained
Wilhelm von Hanno (1826–1882) to complete the project. Oslo Cathedral is located at Stortorvet square north/north-east of
Karl Johans gate, between Kirke gate and Dronningens gate. The cathedral's lower end is surrounded by the
Bazaar (), a curved long building with a tower covered in green copper like the cathedral. Integrated with Basarene is the Fire Watch () which served as Oslo's main fire station from 1860 until 1939, when today's main fire station at Arne Garborgs plass was opened. The cathedral, Basarene and Brannvakten are all built in red brick. Both Basarene and Brannvakten were built between 1840 and 1859 from the plans of city architect,
Christian H. Grosch. Artwork from recent times in the cathedral includes stained-glass windows in the choir by
Emanuel Vigeland installed between 1910 and 1916, west portal bronze doors executed by Dagfin Werenskiold (1892–1977) in 1938, and the silver sculpture with communion scene by Italian sculptor
Arrigo Minerbi dating from 1930. The ceiling decorations are by Norwegian painter
Hugo Lous Mohr (1889–1970). In the latter half of the 1990s, the main organ built by Ryde & Berg of
Fredrikstad, was mounted behind the old baroque facade. Restoration was completed at the time of the city's 900 anniversary in 1950. The church was restored under the plans of architect
Arnstein Arneberg. The neo-Gothic interior was removed and the original furnishings brought back. Arneberg also designed the chapel on the south side of the church. The church was closed in August 2006 for renovation and was opened in April 2010 in the presence of
Harald V of Norway and the Norwegian royal family. ==Bishops of Oslo since the Reformation==