The building of a controversial 25-storey office block nicknamed the Slab on London’s South Bank is to go ahead after the high court upheld a decision by the former communities secretary Michael Gove to approve the development. Mr Justice Mould dismissed a legal challenge by the Save Our South Bank group, which has been fighting the development since planning permission was first submitted in 2021. The developers, Mitsubishi Estate, plan to turn the site of ITV’s former headquarters into offices, shops and an arts and culture space. Save Our South Bank argued the development was unsuitable as it did not