In this paper we investigate laypersons’ valuation of historic buildings, their experiences of thermal comfort in those buildings and contrast this with their views on the appropriateness of energy efficiency measures. This paper presents four case studies of medieval churches in Groningen, Netherlands. Valuation studies is used to investigate the values that are attached to historic buildings by various stakeholders. We apply the ‘heritage as a spatial vector’ approach, to position heritage in relation to developments in society and the landscape. Our theoretical contribution lies in the combination of heritage approaches and valuation studies. We conclude that for a more balanced assessment of historic buildings, laypersons’ valuations should be further integrated in heritage studies.
Designs for improving energy efficiency in historical buildings are tailor made. For initiators the flexible character of design processes raises uncertainty about why certain energy measures are (not) allowed. How is decision making in thedesign process organised? And what mechanisms influence tailor made designs? In this paper we present an integral design method for energy efficient restoration. Our theoretical background draws on two sources. Firstly, we follow design theory with distinct generic and specific designs. Secondly we use the ‘heritage-as-a-spatial-factor’ approach, where participants with different backgrounds focus on adding value to heritage. By applying the integral design method, we evaluate decision making processes and reflect on heritage approaches. We suggest how the integral design method can be improved andquestion the parallel existence of heritage approaches.
