Value-based decision making in the pre-design stage of sustainable building renovation projects – exploring two methods for weighting criteria
Peer reviewed, Journal article
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Original versionInternational Journal of Construction Management. 2019, 1-16. 10.1080/15623599.2019.1578913
Renovating our existing building stock holds a great potential. However, as the complexity of renovation projects is high, multi-criteria decision-making methods can support the decision makers throughout the renovation process. This study explores two value-based decision-making methods: the analytic hierarchy process (AHP) and weighting, rating and calculating (WRC), in how they support decision makers in weighting criteria in the pre-design stage of building renovation projects. Participants from a Danish municipality were given the task of applying AHP and WRC to prioritize a set of renovation criteria. Four themes were analyzed: (1) practical applicability and decision transparency, (2) reflection and learning, (3) satisfaction with the final decision and (4) comparison to the original decision process. The results indicate that applying a formal weighting method in the pre-design stage of renovation projects increases the reflection, learning, transparency and satisfaction with the group decision outcome among the participants.