The work concentrates on how the largely disposed by-products from the babassu palm tree industry and the liquid natural rubber latex extracted from the rubber trees can help produce local construction material on-demand. Natural rubber and babassu natural occurrence overlap in Mapia and several other regions in Brazil; therefore, a locally-fabricated biocomposite using these natural resources could be replicable in several regions across Brazil, establishing a regional collaboration between communities. Even though in early stages and with much refining required, the outcome of this work is promising. It allows foreseeing strategies for maximising the babassu- natural rubber biocomposite mechanical performance to respond to more specific applications in building projects.