Process Gaps of Model-Based Construction Cost Estimation from Selected Constellation of Actors

Sara Bender and Christian Stoy

ERES from European Real Estate Society (ERES)

Abstract: The corresponding and determining success factors of construction projects are essentially quality, deadlines and costs. Cost planning is therefore already a component of the planning service in early phases and has a significant influence on the pros and cons of project implementation. Digital tools and new process flows have been established in the construction industry as part of the digitalization process. Model-based construction cost estimation is used in BIM-based construction projects and obtains element sets and information from digital building models, which consist of objects with alphanumeric and graphic properties. The model-based cost planning processes are not sufficiently scientifically proven and are not subject to a standardized procedure. An ideal-typical model-based target cost estimation process is determined via literature sources. This cost estimation process is reviewed by expert interviews and their analysis by a qualitative content analysis. The result is an actual cost estimation process from current practice, which describes approach and shows process gaps in the area of integration of specialist planner models as well as cost control and cost management.

Keywords: BIM; Cost Estimation; Process; project planning (search for similar items in EconPapers)
JEL-codes: R3 (search for similar items in EconPapers)
Date: 2021-01-01
New Economics Papers: this item is included in nep-isf and nep-ppm
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