A framework for group decision-making in historical building reconstruction investment projects

Investment in public construction projects, especially in reconstruction of heritage buildings, is a complex process from technical/technological, social, environment and economic view that requires awareness, attention, clarity and social responsibility from all stakeholders. Managing such projects is a rather difficult task when one takes into account the complexity, uncertainties and large number of activities involved. Selecting among variety of reconstruction investment projects can often be challenging because of projects’ diversity, and because the various stakeholders view projects in different ways. As they are involved in different stages through projects’ life-cycle, implementation of their opinions becomes even greater challenge. To implement their opinions as a consensus into decision- making process towards projects success, a multi-criteria methods as well as group decision-making can help. In order to do so, a framework for group decision-making is proposed as a part of decision support concept for evaluation and ranking projects in public administration, which is based on combination of AHP and PROMETHEE methods. The whole concept is tested on existing industrial heritage buildings in the city of Rijeka which require a reconstruction for their future exploitation. Proposed approach helps decision-makers to come up with consistent investment decisions but also provides reassurance that the decision is based on a proper comparison of all projects even with a change of stakeholders during decision-making process.