Research on the life cycle cost control of urban complex based on the sustainable development theory

The developer should apply the idea of sustainable development in each stage and consider the cost comprehensively. In the decision-making phase, the developer should consider the social and economic benefits, demonstrate the feasibility of the project. At the design stage the design unit should make full use of the new technology and renewable resources to design the urban complex. In the implementation stage, the construction unit should control costs within budget and reduce the pollution to the environment. In the operational phase, the tenement and the users should utilize resources circularly and protect environment. Research on sustainable development on the city complex can not only play a positive role for building materials saving, energy saving, resources and the environment protection, but also can have a great impact on the economic benefits of the urban complex and can greatly reduce the operation cost of the late.