Earth architecture is one of the distinct features of Egypt. As far back as ancient Egypt, building and other architectural structures exploited different materials and several techniques which revealed and marked regional differences. This thesis focuses on the management and preservation of earthen architectural heritage in one of the Egyptian oases located in the Western desert, namely Siwa. The objectives are to document local vernacular, earthen architecture, and to explore the potentials and the challenges facing the survival and continuity of earthen architecture's know-how as an effective way to contribute to the development of the social and economic conditions in the Egyptian oases' communities. The thesis is not only about the architectural fabric, but also about the intangible heritage inherited along with this fabric. The research is depending on Action Research principles aiming to develop practical solutions to existing problems through engaging and working with the local community.