Wikipedia
A säteritak ("manorial roof") is a type of roof that enjoyed great popularity in Sweden from the mid-17th century. Originally used for higher-status buildings such as manors (hence the name), it consists of a hip roof, where the uppermost part has been cut off from the bottom part by an additional strip of wall and often an additional line of windows. It would later spread to rural buildings of more modest social status. The model for this type of roof was the more elaborate one of Riddarhuset, the palatial building in Stockholm housing the parliamentary meetings of the nobility, which was given its final form by Simon de la Vallée.
The upper part, with its additional windows, was often purely decorative, but it could also contain an additional floor, as was the case with the modest Manor of Vahlsta in Västmanland (from about 1700).