It's the semi-final and the 4 winning interior designers from the quarter finals will be fighting it out for the 2 places in the final and the chance to win The Great Interior Design Challenge. This time our amateurs are taking on 4 enormous front rooms in beautiful Arts and Crafts Victorian Houses in Moseley, Birmingham. Architectural Historian Tom Dyckhoff uncovers the history of the homes and the Arts and Crafts movement, as Judges Sophie Robinson and Daniel Hopwood decide which 2 interior designers will be going through to the grand final. Our semi finalists are: 33 year old Sales Assistant Luke from Oxford who is given the task of creating a music room, but it's the biggest room he has yet to face and the challenge is daunting. Also competing are 65 year old housewife Susan from Maidstone in Kent who hopes to go through with her bright and colourful garden design; 41 year old vintage homeware designer Sarah from Sussex who aiming to create an Asian themed room but is worried her design isn't bold enough; and 30 year old coffee shop owner Jordan from South East London who is hoping his cutting edge design for a family room will get him a place in the final. They still only 48 hours, but the moneys gone up to £1500, so the expectations are higher. But only 2 will be able go through to the grand final.