The Great Interior Design Challenge is a British television interior design competition broadcast on BBC Two from 20 January 2014 to 19 January 2017. Each series aims to find "Britain's best amateur interior designers". All programmes in the first three series have been presented by Tom Dyckhoff with the design tasks judged by Daniel Hopwood and Sophie Robinson. Interior designer Kelly Hoppen replaced Robinson as lead judge in series four, with Robinson becoming a guest judge along with Michelle Ogundehin, Elle Magazine's Decoration UK editor-in-chief. Each episode introduces a new location with distinctive architecture and focuses on a few participants at a time. Contestants have a main challenge – usually to make-over a room in the home of their allocated client – and an additional small task – such as the upcycling of an old item.