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Pakistan’s as developing economy is in crisis due to rising energy and water demand. This study considers the Green Building concept as it accounts for optimum use of energy and water conservation. A building information modelling approach has been used to analyze the Green Building concepts. Parameters of Green Building are defined within Leadership in Energy and Environmental Design rating system. A parametric model of the case study building was developed on the Autodesk Revit platform based on original drawings and details. The same model was then subjected to change by provision of insulation measures. The energy use intensity of both models is calculated and analyzed. The results from the study suggest that if better measures and decision are taken in design stage, there is potential to conserve energy by approx. 28% and water by approx. 32% and subsequently can produce renewable energy by approx. 15%. For the validation of model and results, a comparative study was made on two other platforms, namely, Green Building Studio and Insight. The study further suggests a payback period of approx. 2.3 years after the cost and saving analysis. This integrated approach expedites the certification process thus saving significant time and resources.
Rehman et al. (Tue,) studied this question.