Transport for London (TfL) has unveiled a new Tube map showing the first major expansion of the network this century.

The world-famous map now features the two new stations making up the Northern line extension in south London.

After six years of construction, trains will begin serving Nine Elms and Battersea Power Station from around 5.30am on Monday, September 20.

It is the first major expansion of the London Underground since the Jubilee line was opened in the late 1990s.

Wandsworth Times: Battersea Power Station - Transport for LondonBattersea Power Station - Transport for London

Billions of pounds of investment have been pumped into the area in recent years, including through the redevelopment of Battersea Power Station for residential and business use, and the building of a new US Embassy in Nine Elms.

TfL said the estimated final cost of extending the Northern line from Kennington is £1.1 billion.

The Greater London Authority borrowed £1 billion for the expansion, which will be funded through business rates from the local area and around £270 million of contributions paid by developers.

The scheme takes the total number of Tube stations to 272.

Wandsworth Times: TfLTfL

Carl Painter, London Underground area manager responsible for the new stations, said: "There is a palpable air of excitement behind the doors in both of our state-of-the-art new stations as around 100 staff get ready to welcome customers from Monday.

"London Underground stations have a long history of helping to define a neighbourhood's identity, in gluing communities together, and providing a highly visible landmark that helps visitors to navigate.

"We look forward to welcoming customers to the newest additions to the Tube network next week."

Tube services on the extension will start from Battersea Power Station on Monday 20 September at 05:28.

There will be an initial peak time service of six trains per hour on the extension, which runs from Kennington station on the Charing Cross branch, increasing to 12 trains per hour by mid-2022.

There will be five trains per hour during off-peak times, doubling to 10 trains per hour next year.

Final preparations including paving and landscaping work at the front of both stations, and commissioning of ticket machines, ticket barriers and advertising screens are currently underway.