The Londown | 15 April | With Amanda Baillieu
Six finalists vying to upgrade the National Gallery’s Sainsbury Wing, two winners announced for this year’s Antepavilion, campaigners urge London’s mayor to block Ealing Council’s town hall redevelopment, and the future of nightclubs called into question – Merlin Fulcher and special guest Amanda Baillieu round up this week’s top London architecture news.