Frangos, the fire grilled chicken concept, is to increase its presence in the UK, with the opening of up to four new restaurants next year. The company, which is led by Sumit Chada, will open its second restaurant at the start of 2012 after securing a 2,800sq ft site at Riverside Shopping Centre in Hemel Hempstead. The group, which currently operates a site in the Rotunda leisure scheme in Kingston, is understood to be looking to add a further three restaurants to its estate over the next 12 months. HNG advised landlord Aberdeen Asset Management on the Riverside letting.