The Casa Padellàs is a Gothic palace, originally located at number 25, Carrer Mercaders, in Barcelona. Due to the construction of the Via Laietana in the early 20th century—which otherwise would have destroyed it—the building was disassembled in 1931 and relocated to the Plaça del Rei, in Barcelona's Gothic Quarter. Since 1943, it has been home to the Barcelona City History Museum, and it is catalogued since 1962 as a Bé Cultural d’Interès Nacional with B grade, and its urban qualification is 7a(p).