Abstract
Lengkong Kyai Village is located in the middle of BSD City and on the banks of the Cisadane River. This village is a historical heritage village, which was determined by the Tangerang Regency. The condition of the river border of this village has experienced significant erosion due to river flooding and the condition of the border vegetation as a barrier is decreasing. This will endanger the existence of this village in the future. Therefore, it is necessary to plan a principle and concept of river border conservation that is environmentally friendly and sustainable. This research uses a qualitative approach and produces a combination of active and passive conservation design principles and guidelines, so that local residents can be directly involved in conserving their village's wetlands river boundaries and also maintaining the cleanliness and clarity of river water.