In 2015, the consultancy Incentive supported by Dansk Bygningsarv A/S presented the results of a study commissioned by Realdania (www.realdania.dk) - a large non-profit organization focusing its financial assets on preservation of the built heritage and development of local communities in Denmark. The study clearly demonstrated that listed buildings - apart from the obvious values to their inhabitants and people living nearby or visiting the neighborhoods - also bring a considerable added-value to the housing market. For instance, single-family houses classified as preservation-worthy were on average sold for an 18% higher price per square meter. The added-value was even higher-30% - if only houses with the highest preservation values were included in the comparison. It was clearly demonstrated that a majority of tourists visited the town due to its cultural or built heritage, and that the economic impact of the visitors was considerable in term of job creation.