King's Cross Central (KXC) is a multi-billion pound mixed-use development in the north-east of central London. The site is owned and controlled by the King's Cross Central Limited Partnership. It consists of approximately 67 acres (27 ha) of former railway lands to the north of King's Cross and St Pancras mainline railway stations. The site is largely determined by three boundaries: the existing East Coast Main Line railway leading out of King's Cross; York Way, a road marking the division between Camden and Islington boroughs; and the new railway line, High Speed 1 (HS1), formerly known as the Channel Tunnel Rail Link, which curves around the site to the north and west.