 The Honourable Society of Gray 's Inn , commonly known as Gray 's Inn , is one of the four Inns of Court ( professional associations for barristers and judges ) in London . To be Called to the Bar and practise as a barrister in England and Wales , an individual must belong to one of these Inns . Located at the intersection of High Holborn and Gray 's Inn Road in Central London , the Inn is both a professional body and a provider of office accommodation ( chambers ) for many barristers . It is ruled by a governing council called " Pension " , made up of the Masters of the Bench ( or " Benchers " ) , and led by the Treasurer , who is elected to serve a three @-@ year term . The Inn is known for its gardens , or Walks , which have existed since at least 1597 . 
