Improving Construction Cost Estimation Accuracy in Iraq through BIM Integration an‎d Risk-Based Digital Tools

6/2/2026 12:00:00 AM

This study investigates the state of cost estimation practices in the Iraqi construction industry an‎d eva‎luates the potential of Building Information Modeling (BIM) an‎d risk-based digital tools to improve estimation accuracy an‎d cost control. Through a structured survey of industry participants, the research identifies critical limitations in current practices, including the absence of stan‎dardized estimation procedures, reliance on experience-based judgment, an‎d the continued dominance of traditional manual techniques. These shortcomings contribute to significant budget deviations, with respondents reporting an average cost overrun of 34.6%, highlighting systemic inefficiencies in project planning an‎d execution. The study further examines the perceived benefits of BIM adoption, demonstrating its capacity to enhance quantity takeoff accuracy, enable rapid updating of estimates following design changes, an‎d reduce human error in calculations. Participants reported an average cost reduction of 29.0% in projects utilizing BIM, supporting the argument that digital integration offers measurable financial advantages. Additionally, the incorporation of risk-based digital estimation tools was found to strengthen forecasting reliability, mitigate unexpected overruns, an‎d improve overall project planning through structured uncertainty analysis. The findings underscore the urgent need for modernization in Iraq’s construction cost estimation frameworks an‎d advocate for institutional support, training, an‎d policy development to facilitate digital adoption. This research contributes to the broader discourse on digital transformation in construction by demonstrating how BIM-enabled an‎d risk-informed approaches can improve efficiency, transparency, an‎d economic sustainability in emerging markets.

مدل‌سازي اطلاعات ساختمان , برآورد هزينه , صنعت ساخت‌وساز , متره و برآورد مقادير , تجاوز هزينه‌اي , برآورد مبتني بر ريسك , ابزارهاي ديجيتال ساخت‌وساز , كنترل هزينهٔ پروژه , مديريت ساخت

Building Information Modeling , Cost Estimation , Construction Industry , Quantity Takeoff , Cost Overruns , Risk-Based Estimation , Digital Construction Tools , Project Cost Control

Murtadha Alsragi

Dr. Sajjad Mirvalad