Due to the world’s current environmental predicament, industrial assessments are becoming more aggressive day by day towards the construction and plastic industries for their heavy contribution to the global struggle. Up until this day, the construction industry is still heavily reliant on cement-based concrete, which has proven to be one of the main carbon dioxide emitters in the construction sector over the past decade. Additionally, it has become quite factual that plastic bottles are forming a daily regenerated threat to the solid waste crisis that is rapidly growing. Since greenhouse gases affect the energy balance and generate the greenhouse effect, it becomes critical to identify solutions and alternatives that reduce the impact across all sectors. This research aims to explore a potential solution for two major environmental crises: cement-based construction methods and plastic bottle waste. This research proposes the integration of waste plastic bottles into construction elements that are constructed with Earth materials. The tentative new construction material is primarily based on a cob-earth mix that surround reused plastic bottles, which are filled with sand for strength and shape. The testing and assessment of the technique include both structural and environmental dimensions. The functionality of the material is demonstrated through the compressive strength tests.