This work presents the findings of a recent study for a large public sector educational building program on how project costs are impacted by green/sustainable building requirements that have been included in the design and construction of the facilities. The study examines the correlation between the use of green/sustainable measures included on the project and cost measures such as total project cost, construction cost, design costs, and construction change order cost. Based on data from over 30 large, public sector, educational building program projects which started construction over the last 4 years, this paper makes the surprising discovery of little cost impact when implementing these green/sustainable measures. Conclusions to the paper include suggestions for expansion of the research/lessons learned, as well as future research of factors that may influence project cost and green/sustainable construction.
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