Karen Millen will host a pop-up atelier in its Brompton Road flagship in Knightsbridge, London from September 1.
The ‘Tailored in London’ service, which is being launched to coincide with London Fashion Week and will run for six weeks, offers a made-to-measure tailoring service.
Customers will be able to book appointments to create personalised T-shirts, coats, waistcoats and skirts with their chosen fabrics, linings and buttons. The service will be available for garments in sizes eight to 14.
Prices will range from £99 for a T-shirt to £899 for a tailored trench coat. Gemma Metheringham, creative director of Karen Millen, said the prices reflect the design quality and Italian fabrics, as well as the fact it is more expensive to manufacture in the UK.
It is not the first time Karen Millen has launched a made-to-measure service: in August 2013 it opened a tailoring pop-up in Selfridges.
The retailer has also announced that Game of Thrones star Sophie Turner - who plays Sansa Stark in the series - will front its autumn 14 TV campaign.
The campaign was shot in and around east London, where Karen Millen’s design studio is located.
It was developed using an all-British creative team, including filmmaker and photographer Glen Luchford, and also features British models Lara Mullen, Rosie Tapner and Brogan Loftus.
London Fashion Week will run from September 12-16.