The fashion retailer appointed E-inbusiness to design and build the new area of the site to ensure it delivers a more engaging and branded customer experience for its teen shoppers.
The includes a "Most wanted" function to promote the store's most popular range and three "Get the look" features that focus on current fashion trends.
New Look launched its website at the end of 2007 selling its women's and accessories ranges but is now keen to develop the site to ensure it remains "compelling" to all its customer groups and reflects its full product portfolio.
Following on from the teens section launch, New Look will be adding branded menswear and kidswear sections to the site.
Nigel Corp, E-inbusiness chief operating officer, said: "In today's market it is no longer enough to sell a selection of your products online. Shoppers demand the same range of products, style, service and price online as they receive offline.
"Through enhanced functionality and branded design, New Look and the E-inbusiness team have developed a highly compelling and interactive shopping experience for New Look's teenage customers."