Using Building Information Modeling to Retrofit Abandoned Construction Projects in Iraq to Achieve Low-energy

Recently, a significant number of construction projects that have not been completed in Iraq have a negative impact on stakeholders, the economy, and the environment. The traditional method fails to manage the reconstruction of existing buildings Building Information Modelling (BIM) is a new technology that has helped to improve many aspects of the construction industry. The purpose of this study use BIM technology to reconstruct unfinished projects, and energy performance assessment to minimize the environmental effect of buildings, the use of Building Information Modeling technology could reduce significantly time, and cost. The research idea will be applying to one of the projects in Iraq. the results concluded that applying BIM in the project will significantly reduce the cost of energy of buildings when they are appropriately used in the renovation. Results concluded that using BIM technology and Green Building Studio (GBS) efficient tool for the simulation of building energy and optimization of take-off quantities as accurately as possible.