Hedonic price modelling is a widely used technique to explain the value of different types of individual property. Following the notion that areas within the city can suffer from devaluation the question arises what factors influence the value of urban areas. In this paper we use hedonic price analysis to answer this question for a specific type of urban area, the industrial site. We use the average property value per hectare as a representation of the value of an industrial site. Although there are many studies that try to explain the value of individual property, the value of industrial sites as urban areas remains under researched. A distinction is made between three types of explanatory variables: physical characteristics of the industrial site, regional economic characteristics and general economic trends. Our results show that 'mixed-use' sites -a third of all industrial sites in the Netherlands -show the lowest average property values. Specialisation in terms of the composition of firms located on an industrial site appears to have a positive influence on the average property value with specialised types of industrial sites, such as 'transport' and 'consumer services', showing significantly higher average property values. Furthermore, visibility from motorway and the region in which the industrial site is located (the economic core region Randstad showing the highest average values) also have a significant influence on the value of an industrial site. Although the overall explanatory value of our model appears to be modest compared to existing hedonic pricing studies of individual property, results show that most explanatory variables in our model have the expected coefficients and signs, indicating that this method can be applied in a meaningful way to gain insight into the valuation of urban areas.