10 th International Civil Engineering Conference (ICEC-2019) “Technological Transformation of Civil Engineering” February 23-24, 2019, Karachi, Pakistan. Comparison of Physical Attributes of Real Time Project Using BIM (Building Information Modeling): A Case Study Abdul Hannan Qureshi, Syed Wajhi U. H. Naqvi The University of Lahore, Islamabad Campus, Pakistan abdul.hannan@uol.ce.edu.pk, wajhi.naqvi@gmail.com Abdul Qadeer The University of Lahore, Islamabad Campus, Pakistan maqa122@gmail.com Hassan Masood, Muhammad Kamran The University of Lahore, Islamabad Campus, Pakistan hassanmasood65@gmail.com, kamran210@gmail.com Abstract BIM follows an integrated project delivery approach and acts as project cost manager and automated quantification that incorporates 4D time as well as 5D cost modelling. BIM process improves the performance through the whole life cycle of projects. BIM visualizes projects in virtual n-dimensional models for identifying possible conflicts in design, construction and operations. Pakistan construction industry lags in such information technology applications i.e. the use of conventional 2-D CAD drawings does not support a true collaborative approach and hinders the joint involvement of the primary stakeholders during the design phase of the project. This poor integration of information results in damaged project time line and less practical estimates which overruns the planned budget. This paper summarizes the case study of implementation of BIM on residential building project and comparison of qualitative and particularly quantitative attributes and its validation from on-site available data; with the conclusion that application of BIM on residential unit projects in Pakistan can be hugely beneficial in terms of diminishing time overrun, material estimation, reduced conflicts, better variations management, cost management, decision making and quality management. Navisworks has come out as a great BIM tool for clash detection and quantity estimation with the highest accuracy. Keywords BIM, Estimation, Revit, CAD, Residential Unit 1. Introduction In recent times Building Information Modeling (BIM) has become a highly debated topic since it is a valuable tool for reducing construction industry’s disintegration and enhancing its efficiency. Owing to government support and standardization, BIM has become common in some parts of world (Lu et al., 2012; Tomek & Matějka, 2014). BIM follows an integrated project delivery approach and acts as project cost manager and automated quantification that incorporate 4D time as well as 5D cost modelling and updates project team with updated information and data (Smith, 2016). BIM process improve the performance through the whole life cycle of projects e.g., design and construction integration, cost and © Proceedings of the 10th International Civil Engineering Conference (ICEC 2019) 37 Technical Session 2 Construction Engineering & Management