United Kingdom 
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We couldn’t find any streaming options in South Africa, but Interior Design Masters - Season 4 is available in the United States and 5 other countries on Amazon Prime Video, Sky Go, and 8 other services.
Each week, the designers will be set a new challenge, crisscrossing Britain to take on the interiors of luxury apartments, hotels, children's nurseries, shops, beach chalets, wedding accommodation, hair salons and gastro-pubs. Their skill and expertise will hopefully create design magic to impress the discerning judges.
