The new four storied underground station features a new Western ticket hall at Dean Street, am Eastern ticket hall, three new station entrances, step-free access, additional escalators to access Northern line platforms, a public piazza, access to the Northern and Central line platforms and a Western station box between Dean Street and Great Chapel Street to create an access to the Crossrail platforms.

The construction also involved the structural work and fit-out of the ticket halls, tunnels and Goslett Yard Box. A new concourse tunnel, escape tunnels, cross passages, interchange tunnel and connector stub tunnels have also been built. The tube station connects to the new station allowing passengers to commute between the tube stations and Crossrail stations. The station acts as an interchange between the Northern and Central Lines too.

The platform tunnels are 260m long and are 25m apart from each other. The 500,000ft² of area at the eastern end of Oxford Street and Tottenham Court Road is allocated for retail, office and residential purpose.