Work will begin on the £1.3billion redevelopment of the Shell Centre on the South Bank after the scheme cleared the final hurdles in a long-running planning dispute.

The overhaul is a joint project by Canary Wharf Group and developers Qatari Diar which has saw Shell sign a 15-year deal in 2010 to decant most of its staff to former Barclays offices on the estate.

Activist George Turner held up progress with a two-year series of legal challenges. But he failed to meet the deadline to lodge an appeal against the latest rejection of his argument so work is likely to begin by the end of the month.

• Background: Shell Centre legal challenge rejected

His objections included the lack of affordable housing and natural daylight in the planned development, its impact on views of the South Bank as well as claims of irregularity in the planning process.

The joint venture company plans to rework the landmark 27-storey Shell Centre as well as build up to 950 homes and 800,000 sq ft of offices, shops and restaurants.

John Pagano, development director at Canary Wharf Group, said: “We shall be starting activity on site very shortly and will be closely in touch with the community around and in the Shell Centre to keep everyone fully abreast of each phase.”

Speaking at the time of the Canary Wharf “decant” former Shell UK chairman James Smith confirmed that the Shell Centre was “our home in London”.

He added: “The site is an exceptional location in one of the world’s great cities. We want to redevelop it to its full, modern potential in keeping with the continuing development of the South Bank.”