PurposeThe value assessment process of the built heritage is a multipart procedure that includes diverse aspects with overlapping requirements. This process requires various measures to obtain better results, making it a multi-criteria decision-making (MCDM) process. In post-disaster cases, a management system is required to promptly evaluate the degree of risk and damage and to set the preservation priorities in order to effectively supervise and protect the heritage places. MCDM is utilized for configuring and solving decision and planning problems encompassing multiple criteria, to assist decision-makers.Design/methodology/approachThis paper suggests an approach as a tool to be used in the development of the Built Heritage Record for Mosul Old City. It proposes a D&C technique as an MCDM effectual tool for solving multifaceted problems of heritage significance assessment process in post-conflict cities, adopting the conservation of the traditional houses of Mosul Old City as a case study.FindingsThe research results showed the need for a method to solve the complexity of the decision-making problem regarding the process of determining the value and significance of heritage buildings and sites in the old city of Mosul, and how to develop a methodology to facilitate decision-making within databases related to such a multi-criteria issue.Research limitations/implicationsFor an effective judgment of the expert or participant in the evaluation process, and to contribute to the decision-making more objectively, exploiting digital management programs including an interactive user interface with the ability to share on the Internet is the focal next intention of the project.Originality/valueThe paper shows that by using specific software, a database for heritage places of the old city of Mosul could be generated to apply the proposed system. The expert can utilize the software to calculate and define the total value of the place automatically according to the entered data.