Much of the current debate on how we should preserve our cultural heritage revolves around urban sites - historic monuments in urban settings, historic districts, or complete historic towns. The growing complexity of urban heritage conservation makes reaching a consensus on how to manage urban heritage difficult. Additionally, the sharp increase in the world's population now living in urban areas, combined with a lack of policies to facilitate a sustainable use of heritage assets means the pressure on historic sites is set to rise. Unless new and innovative ways of managing these sites can be.