Values as a base for the viable adaptive reuse of fortified heritage in urban contexts

The last decades have brought a growing interest in fortified heritage research, protection and reuse in Europe as a result of the demilitarisation of numerous historic defence structures occupied by armies in many countries and used as service facilities during the Cold War. There are various approaches to the conservation of fortified heritage and adaptive reuse is one of them. The values associated with a site should constitute the departure and arrival point for any type of intervention. An essential part of the process therefore should be the appropriate identification of these values to base on them contemporary actions. Fortified heritage has values similar to other forms of urban heritage but it also possesses values that are unique to this form of architecture and landscape. This paper sets out the values that should be taken into consideration when carrying out an adaptive reuse project on fortified heritage. Based on research and on international charters, as well as the writers’ own experience, the paper identifies seven values and makes a distinction between two groups of values, namely: intrinsic (history, memory and identity; scientific and technical; territorial and architectural) and extrinsic (landscape and aesthetic; environmental sustainability; social and cultural; economic). While intrinsic values of fortified heritage are usually well described, less explored are the issues of extrinsic values. The paper presents two case studies, Zamość Fortress and Fort St Elmo, and considers how these values were taken into account in the respective projects.