Thirty Nine Essex Street is a long established barristers' chambers based in London. Its members include 40 Queen's Counsel and 83 junior Barristers. The chambers offers expertise in commercial, common, construction, costs, environmental and planning, public and regulatory and disciplinary law. Members of chambers regularly appear before the UK Supreme Court, Privy Council, Court of Appeal, the European Court of Human Rights and the European Court of Justice, specialist courts, tribunals and planning and other public inquiries, as well as of domestic and international arbitration. It is one of the largest Barristers' chambers in the country. The chambers have offices in Manchester, Singapore and Kuala Lumpur.