Charlie Dimmock and the Rich brothers tackle a narrow garden in West Sussex. Owners David and Simon would like to modernise their space, but whose design will come out on top?

Charlie Dimmock and the Rich brothers are challenged to come up with a Mughal-inspired design for a small courtyard garden in Harrow. Whose plans make the most of the tiny space, and which one will owners Darshna and Noyon choose?