​​​​Évaluation de l’économie circulaire dans le secteur du bâtiment et de la construction ​au Sénégal​

​​Senegal's buildings and construction sector is expanding fast, driven by rapid urbanization and a population set to nearly double to 32.5 million by 2050. Urbanization has passed 54 per cent and will top 60 per cent by 2035, yet more than 80 per cent of buildings go up informally and informal settlements cover a quarter of urban land. Secondary materials make up only 20–25 per cent of materials used in new construction, and construction and demolition waste (CDW) is unquantified nationally. 

​Prepared by UN-Habitat with UNEP, UNOPS and Senegal's Directorate General of Construction and Housing, with funding from the Government of Finland, the report pilots the National Circularity Assessment Framework for Buildings, developed by the Circular Built Environment Working Group of the Global Alliance for Buildings and Construction (GlobalABC). The framework assesses circularity against three objectives – minimize raw material extraction and waste, mitigate environmental impacts, and improve economic and social outcomes – and across five action areas: strategic priorities, spatial and urban development, existing buildings, new buildings, and the construction supply chain. 

​The assessment finds no national strategy or institution dedicated to circularity, codes that embed circularity only partially, no rules on recycled materials, and fragmented material-flow data. Demolition outpaces renovation and finance for circular projects is scarce. It also documents foundations to build on: circularity features in the Plan Sénégal Émergent, SONAGED has begun recovering rubble and turning it into paving blocks, and local materials such as compressed earth blocks, bamboo, and typha offer lower-carbon, cheaper alternatives. 

​Recommendations centre on embedding circularity in construction and urbanism codes, incentivizing renovation over demolition, investing in CDW collection and recycling, strengthening skills, developing green finance, and building integrated data systems.​