Charlotte Street is a street in Fitzrovia, historically part of the parish and borough of St Pancras, in central London. It has been described, together with its northern and southern extensions (Fitzroy Street and Rathbone Place), as the spine of Fitzrovia.The southern half of the street has many restaurants and cafes, and a lively nightlife; the northern part is more mixed in character, and includes the large office building of the advertising agency Saatchi & Saatchi, and a University College London student hall of residence, Astor College.