European Cultural Heritage Strategy for the 21 st century „ Page 29 Recommendation D4 Produce heritage impact studies for rehabilitation, construction, planning and infrastructure projects Through the implementation of the “integrated conservation” principle, the heritage dimension plays a part in other sectors of activity and should be viewed, especially in the field of spatial planning and territorial development, as a resource and not a constraint. The quality requirements inherent in respect for and enhancement of the heritage help achieve the highest level of quality. Relevant challenges D2 D3 D4 D5 D6 Interfaces K5 Courses of action „ Introduce heritage impact studies on a wider scale „ Support renovation and rehabilitation projects on existing heritage assets „ Verify and encourage an analysis of the expediency of conserving and enhancing heritage assets rather than carrying out new construction work, if this is possible as part of the programme Target audience: local, regional, national, European Example of action The UNESCO Operational Guidelines for the implementation of the World Heritage Convention, http://whc.unesco.org/en/guidelines/ with regard to effective management systems (II.F) States that impact assessments for proposed interventions are essential for all world heritage properties and could be adapted in order to be extended to other categories of heritage. Recommendation D5 Encourage the reuse of heritage and use of traditional knowledge and practice Quite apart from its cultural values, heritage has an undeniable economic value which is poorly or wrongly perceived. Like all goods and services, heritage has a market value and can be a safe investment. In terms of real estate, it is part of an organic form of spatial organisation and contributes to the functioning of local authorities. Taking into consideration grey energy, too rarely accounted for in development projects, it can make for genuine energy savings, making it a credible alternative in energy terms to new constructions. Appropriate reuse of cultural heritage is one of the key ways of addressing the negative effects of demo- graphic changes in both urban and rural areas. Relevant challenges D1 D2 D3 D4 D5 D6 D7 Interfaces S8 K3 Courses of action „ Recognise and promote integrated conservation as a priority in heritage policies „ Introduce incentives for heritage upkeep and maintenance „ Consolidate national legislation to avoid the destruction of cultural, movable and immovable heri- tage assets „ Encourage the reuse of heritage for new purposes while respecting the values of heritage Target audience: local, national, regional Examples of action „ Creation of secure repositories complying with the requisite conservation conditions, e.g. the Bibracte archaeological park and conservation and research centre in Burgundy (France) www.bibracte.fr/en