The dataset covers the Directorate for Cultural Heritage's listed wooden buildings environments. These are cultural historical wooden buildings environments subject to special fire protection considerations. These environments are especially vulnerable to fires. The largest areas of continuous, historical wooden buildings environments are found in cities, such as central Halden, historical Stavanger, and large parts of Trondheim. Even so, wooden buildings environments are also found on larger farmyards, such as Havråtunet in Hordaland, and in historical fishing communities, such as Sør-Gjæslingan in Nord-Trøndelag.

The dataset covers areas where there is a particularily great risk of fire contagion as defined by the Norwegian Directorate for Civil Protection in cooperation with the Directorate for Cultural Heritage. Listed wooden buildings environments where there is a risk that fire in one building spreads to the other buildings.