therefore the relative use of local building materials and resources in the construction industry has a substantial effect in the way in which the construction industry can be harnessed to enable growth in the local economies of ldcs the development of local sustainable building materials and technologies may also boost the associated retail and consulting industries data on shares of oda that goes into the construction industry is one of those areas that need setting up of new systems to support data collection and requires establishing new partnerships at the national levels and local authorities levels