The surge in prices of construction materials is seriously undermining the optimism emerging from the latest economic report on housing and construction from the Environment Department, planning and housing (Deal). She emphasizes that in 2021, 8,210 housing units were authorized for construction, figure up 8,3% compared to 2020, up to +18,6% for the construction of individual housing. In 2021, starts of collective housing increased by 60%, those of individual housing projects by 24%. This improvement may not last, particularly in the field of social housing where the construction of 2,400 housing units is planned, but within a budgetary framework that is difficult to maintain at current prices for construction materials. Construction of private housing and non-residential premises, just like public works sites, should be affected in the same way by this sudden inflation.