The Big Projects Transforming London Transport by 2030

London’s transport landscape is set for a decade of dramatic change, with multibillion-pound projects reshaping how the capital moves, connects and grows.

Chancellor Rachel Reeves has approved Gatwick’s £2.2bn second runway, due to open by 2029 and enabling 100,000 extra flights annually. Heathrow is advancing with its £21bn third runway, targeted for completion by 2035, despite strong opposition over noise, pollution and climate impacts.

Transport for London is also investing £3bn in a brand-new Piccadilly line fleet. The 94 trains, due to enter service in 2026, will feature wider doors, higher capacity and (crucially for deep-level passengers) air conditioning for the first time.

Alongside these airport and Tube upgrades, London is pushing forward on Oxford Street pedestrianisation, Stansted’s £1.1bn terminal expansion and proposals for the Bakerloo line extension to Lewisham. Cycling infrastructure is also set to see record investment, with plans for 95km of new cycle routes across the city.

Meanwhile, HS2 remains one of the most ambitious undertakings in modern British transport, with the first phase linking Old Oak Common to Birmingham now expected between 2029 and 2033.

Mayor Sadiq Khan has played a pivotal role in driving these improvements, working alongside the Labour government to prioritise infrastructure that benefits Londoners. From new cycling routes to pedestrianised streets, his leadership is helping ensure these projects are delivered efficiently while supporting jobs, sustainability and urban renewal.

From airports to Underground upgrades, London’s transport projects reflect a shared vision: modernising the city’s infrastructure, boosting economic growth, and creating a more connected, sustainable capital by 2030.