Roy Dantzic (Indipendent) Roy Dantzic is Non-Executive Chairman of Development Securities plc and of Interior Services Group plc in addition to being a Non-Executive Director of Airplanes Ltd and of Blenheim Bishop Ltd. Prior to these positions Mr Dantzic was Finance Director of Stanhope Properties from 1992 until it was acquired in 1995 and Managing Director of British Gas’s property subsidiary from May 1996 until his retirement in May 2003. Mr Dantzic is a qualified accountant (a member of the Institute of Chartered Accountants of Scotland) and a member of the Council of Management of the Architectural Heritage Fund and a Trustee of the Portman Estate.