PLANS to create holiday units in converted shipping containers on a city’s green belt have been greeted with a storm of protest from residents and environmental groups. Objectors have called on Durham county councillors to reject proposals for four self-catering units proposed jointly by Unbox Limited and the Poplar Tree Garden Centre in Shincliffe, near Durham. Shincliffe Green Belt Action Group spokesperson Colin Jubb said: “Not only is the site on protected countryside within the Durham Green Belt it is also in the setting of the village s conservation area. “Residents are justifiably appalled by the idea of having converted shipping containers supported on stilts sitting on their doorstep.