The contributions of sustainability to architectural designs are steadily increasing in parallel with developments in technology. Although sustainability seems to be a new concept in today's architecture, in reality, it is not. This is because, much of sustainable architectural design principles depend on references to vernacular architecture, and there are many examples found in different parts of the world to which architects can refer. When the world seeks for more sustainable buildings, it is acceptable to revisit the past in order to understand sustainable features of vernacular architecture. It is clear that vernacular architecture has a knowledge that matters to be studied and classified from a sustainability point of view. This work aims to demonstrate that vernacular architecture can contribute to improving sustainability in construction. In this sense, the paper evaluates specific vernacular housing in Eastern Black Sea Region in Turkey and their response to nature and ecology. In order to explain this response, field work was carried out and the vernacular architectural accumulation of the region was examined on site. The features of the examples have been identified and debated in today's sustainable architectural concept. This work holistically evaluates this architectural manifestation, in the light of current knowledge, in order to find scientific justification for its knowledge to verify and promote its application in the future.