 The rear of the building, containing the halls, was demolished and a circular office building, named the Asticus Building, was built on the site.The building was the location of the First Pan-African Conference in 1900.The Women's Social and Political Union (WSPU), part of the British Suffragette movement, held a ‘Women's Parliament’ at Caxton Hall at the beginning of each parliamentary session from 1907, with a subsequent procession to the Houses of Parliament and an attempt (always unsuccessful) to deliver a petition to the prime minister in person.