Parametric Method and Building Information Modeling-Based Cost Estimation Model for Construction Cost Prediction in Architectural Planning

Economic feasibility and cost analysis in the preliminary planning stage of early-phase construction projects have a significant impact on project management implementation. However, while estimating per unit area, existing approaches do not account for factors other than area-related information, causing estimation error. Therefore, model that can be utilized early phase is developed this study based BIM architectural stage. Moreover, goodness fit accuracy were verified through validation method considering design process. The proposed showed higher conventional models terms floor area. Furthermore, it was possible to confirm performance range presented by AACE. In addition, generate results corresponding Class 1–3, subsequent findings emphasize importance jointly processes related indicate parameters area need considered project.