Rådhusstræde 6 is a Neoclassical property situated at the corner of Rådhusstræde and Kompagnistræde, betweenGammeltorv-Nytorv and Gammel Strand, in the Old Town of Copenhagen, Denmark. It was constructed by Andreas Hallander, one of the most active master builders in the rebuilding of the city following the Copenhagen Fire of 1795.The building was listed in the Danish registry of protected buildings and places in 1964. Notable former residents include the politicians Johan Nicolai Madvig and . Later acquired by the Danish Union of Teachers, it housed the Danish School Museum from 1995 to 2008.