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 National Building Society moved into premises at 219–229 Baker Street. For many years, Abbey National employed a full-time secretary to answer mail addressed to Sherlock Holmes. In 1990, a blue plaque signifying 221B Baker Street was installed at the Sherlock Holmes Museum, situated elsewhere on the same block, and there followed a 15-year dispute between Abbey National and the Holmes Museum for the right to receive mail addressed to 221B Baker Street. Since the closure of Abbey House in 2005, ownership of the address by the Holmes Museum has not been challenged, despite its location between 237 and 241 Baker