The good availability and its material characteristics make earth an ideal building material in arid and hot regions of the planet. In the third world countries earthen architecture is still particularly widespread, because its extraction is dependant only on time, with no financial outlay. Despite these positive aspects, earthen architecture is rarely used in development cooperation projects. Lack of experience with the building material and image problems may be possible explanations for this. Through the scientific monitoring of a development project in the Afar-Region in Ethiopia I will examine where the problems in the implementation of such a project are. The field sample after the design of Katharina Schoenher is particularly suitable since it is also used to establish a new, sustainable technology for this place through the use of clay bricks as a building material. The goal of my work is to record and analyse the difficulties in implementing such a construction project. Based on the case study, specific problems such as the lack of availability of building materials and other resources, the language barrier and the cultural and social differences will be examined. These are compared with other earth building projects in the development context and strategies for problem solving are documented. This documentation can serve as a guide for the realization of future similar projects.