Estimation and costing form the backbone of successful construction project management, directly influencing financial viability, resource allocation, and overall project success. This paper presents a comprehensive review of estimation and costing methodologies for multistorey buildings, synthesizing findings from various research studies conducted across different geographical contexts including Bangladesh, India, Pakistan, Egypt, and Slovakia. The review examines traditional manual estimation methods, software-based approaches using tools like Microsoft Excel, AutoCAD, STAAD Pro, and ETABS, as well as advanced Building Information Modeling (BIM) techniques. Key factors affecting estimation accuracy are identified, including market conditions, estimator experience, site conditions, and labour availability. Comparative analysis reveals that BIM assisted estimates achieve accuracy within 0.5 0.8% variance, significantly outperforming traditional manual methods which typically show 5 15% variance. The integration of digital tools, proper work breakdown structures, and consideration of critical success factors significantly enhances estimation accuracy. This review provides valuable insights for civil engineers, project managers, and researchers seeking to improve cost estimation practices in residential construction projects.
Estimation, Costing, Multistorey Building, Building Information Modeling (BIM), Quantity Surveying, Construction Management.
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