Millionaires' Mansions

Juliette Thomas installs a three-storey chandelier under the watchful eye of a former Russian weapons inspector. Plus: stingray-skin tables, chandeliers made from leaves dipped in gold, and more.

Millionaires' Mansions enters the private world of luxury interior design, where prestigious designers compete to work for the wealthiest clients. With access to the houses, the craftsmen and women, and the clients, the series explores how the millionaire lifestyle is created in homes of sumptuous luxury. As the luxury interior design world flourishes, Britain's craftsmen and women are having a creative renaissance. With every client wanting something unique and bespoke, artisans are pushing new boundaries with what can be turned into interior design. This episode meets four of the super-rich's favourite 'makers'. What could scream success more than a 12-foot aquarium full of piranhas? Aquarium Architecture design bespoke aquariums for people who want to make a statement. Russians love predatory fish; Americans want super-sized tanks crammed with fish and coral. The company install a tank for a wealthy Londoner who wants a tank of ugly predatory fish.

The final episode of the series focuses on Chelsea, one of London's most exclusive boroughs, with a rich artistic heritage. It is a popular area with the international elite, and developers are busy transforming its historic buildings into luxury apartments. The latest trend is to create whole lifestyles inside these homes - right down to the champagne in the fridge - so that clients can walk in, purchase and start living the high class life immediately. Sally Mackereth is one of London's leading architects. This film follows her as she transforms a former artist's studio in Chelsea into a fully furnished apartment for a luxury developer. Travelling across Europe to collect and commission exclusive furniture - from satin wall lining to a table made from 8000 year old wood - Sally is trying to appeal to an international buyer interested in Chelsea's artistic heritage. But who might this buyer be?