Madame Tussauds took a series of short leases on the upper floor of "Baker Street Bazaar" (on the west side of Baker Street, Dorset Street, and King Street), which later featured in the Druce-Portland case sequence of trials of 1898–1907. This became Tussaud's first permanent home in 1836. By 1835, Marie had settled down in Baker Street, London and opened a museum. One of the main attractions of her museum was the Chamber of Horrors. The name is often credited to a contributor to "Punch" in 1845, but Marie appears to have originated it herself, using it in advertising as early as
221B Baker Street the other numbers in the street: an issue that has since vexed local bureaucrats, who have striven for years to keep street numbers in sequence. In 2005, Abbey National vacated their headquarters in Baker Street, which left the museum to battle with Westminster City Council to end the dispute over the number, which had created negative publicity. Eventually the museum was granted special permission by the City of Westminster to bear the address of 221B Baker Street. In 2018 "Quartz" revealed that based on courts documents and the Panama Papers that the property was owned at least partially by relatives