Land is worldwide one of the most important resources and it is subject to multiple anthropogenic interests. Therefore, it is of major importance that a comprehensive land management is applied and that the limited resource land is managed in a sustainable way. One important factor is the registration and mapping of land especially for small scale farmers which are typically governed by traditional or customary land tenure in Kenya. This customary land tenure usually makes an entire family or village shared owner of the land and elders do decide on how the land is subdivided and distributed between the members of this society. In order to get an idea on how this tenure system is effecting the sustainable land-use and how these customary rights are carried out in the area of the Arabuko Sokoke Forest a group of researchers from TUM, accompanied by young researchers of Pwani University, collected data on land tenure and land-use. Using the Social Tenure Domain Model (STDM) approach, the researchers were mapping the land of the individual farmers and conducted additionally interviews with the land users to identify their perception towards land and ownership within the setting of customary tenure. To get an idea about sustainability for all parcels the cultivation was mapped and soil samples were received to identify possible shortages in nutrition or acidity of the soil.