The South Bank entrance at Waterloo Tube station reopened on Wednesday.
The entrance had been closed for three years for a revamp and building work overhead at one of the Tube’s busiest stations.
Shoppers, workers and visitors to the South Bank, will experience quicker and easier journeys through the station as they will no longer have to exit into the Network Rail station and cross roads to reach South Bank.
The opening will increase capacity to the 250,000 customers passing through Waterloo each day.
The entrance has access to the Northern and Bakerloo lines, with interchanges to other lines.
Nigel Holness, managing director of London Underground, said: “The new entrance to Waterloo Tube station will once again make the South Bank more easily accessible, will boost businesses in the area and provide access to new homes.
The modernised entrance will make journeys quicker and easier for the hundreds of thousands of people who travel through it every day, and ease congestion for all station users.”