A housing assessment by Shelter Cluster, chaired by the Norwegian Refugee Council with the participation of the U.N. refugee agency and the Red Cross, says Gaza will take 20 years to rebuild. Most rebuilding is due to the housing deficit of 75,000 units. Cost estimates for the restructuring are more than $6 billion. The housing assessment derives from the present level of goods transferable from Israel to Gaza. The present blockade hinders rebuilding efforts, as construction materials have restrictions to limit tunnel production. The 20 year timeframe takes into consideration 100 truckloads of building materials on a daily basis. Currently there is no mention of plans to ease blockade restrictions.