Caulder Moore worked closely with the M&S in-house design team to create the concept for the store's branded departments, including Autograph, Limited Collection and Blue Harbour, as well as the denim shop, women's bottoms and accessories.
The branded departments have been given a premium feel and the accessories range, including bags, jewellery and footwear, has been given a unified look.
Shop by fit, size and style has been made easier in the denim shop and women's skirts and trousers sections, with new anchors and dividers bringing extra personality to the space, whilst maintaining the M&S brand look and feel.
Ian Caulder, creative director at Caulder Moore, said: "Naturally we loved working on the iconic M&S brand again, continuing our relationship with the in-house team. We're looking forward to this exciting new store generating a fantastic response with both existing and new M&S customers."
Teresa Clark, head of store design at M&S, said: "Westfield asked retailers to produce something special for the centre and this offered a great opportunity for us to trial a range of new design features.
"We have focused on helping our customers to shop easily in an environment which feels really special and have enjoyed working with Caulder Moore on the project."