Indonesia is one of the 5 countries in the world that contribute to around 60% of all the ocean plastics in the world. This thesis project is based in the kampungs of Cigondewah, in Bandung, Indonesia. This project tries to deal with the local economies of waste recycling and the informal housing industry. The kampungs are situated next to a major textile factory PT Kahatex that provide jobs to most of the people in the Kampungs. The informal recycling industry also heavily depends on the waste produced from these factories. The idea is to create a decentral circular economy with a collaboration of the building and recycling industry, to develop building materials out of waste plastic. Wastes that are sourced locally can be upcycled into simple and long lasting elements that can provide for affordable and sustainable housing for the low-income population of the kampungs.