Based in Guildhall, the City Corporation looks after and promotes the City of London. It is headed by the Lord Mayor with the Court of Common Council being its main decision-making body. We are a uniquely diverse organisation, with a role that goes beyond that of an ordinary local authority. We have our own government (the oldest in the country with origins pre-dating Parliament), our own Lord Mayor and independent police force. As the governing body of the Square Mile, we are dedicated to a vibrant and thriving City, supporting a diverse and sustainable London within a globally-successful UK.