Farmhouses and their differently shaped courtyards are originally derived from the "Streuhof" and have been built in a costlier and sturdier way since the 17th century. Due to the invention of machines and a novel way of working and living, the demands on agriculturally used buildings have changed heavily. The original structures of the regionally varying types of farmhouses in the Mühlviertel are analyzed in this thesis work. The implemented building materials and the development of these farm estates are elaborated by using a concrete example. The estate "Aumayr" situated in the lower part of the Mühlviertel, in the district of Perg and the former agriculturally shaped township of Lanzenberg. Next to a few residential houses, six farmhouses in particular dominated the area approx. 1826. Over the years the town developed into a growing residential area and the surrounding infrastructure was adapted to the farmhouse. The architectural structure and the implemented materials lead to the conclusion, that the estate „Aumayr" has changed in its appearance massively over the past centuries. The main part of this thesis work will focus on developing a vision for the "Toreckbau" with the house name of „Aumayr". The basis of this vision is an analysis of the developing farm estates in the Mühviertel area and the agricultural structures of the city and the estate. In order to fulfill the requirements of the future building contractor, all stages of conceptualization and design were arranged in close consultation with the future owner. Thus, all relevant regulatory requirements for the upper Austrian region were taken into consideration. The main focus of this outline is on the elaboration of a gradual and sustainable reutilization in a three-step repurposing project of the Toreckbau.