Interior Design Masters - Season 4 (2023)

The six remaining designers are put into three teams of two. The brief for the contestants is to transform three independent shops in Harrogate.

The five remaining designers have to work on five 1930s beachside chalets in Eastbourne, their smallest spaces to date. The challenge's guest judge is Laurence Llewelyn-Bowen.

The four quarter-finalists are challenged to transform wedding accommodation on the banks of Rutland Water in the East Midlands. Which contestant will not advance to the semi-final based on their design.

The penultimate challenge for the three remaining designers is to makeover three individual hair salons in Bristol. Which two designers will make it through to the final?

The two finalists go head to head in making over two pubs in Brighton. Who will be crowned the winner and secure a life changing contract to redesign a top London cocktail bar.