since we see many plastic wastes,that cause harm to environment so, wat if we construct buildings using hard plastics so as to reduce the usage of recycled plastic components to construct buildings by improving their thermal resistance and stability as thermosets and shaping plastic using chemicals for definite shape and dimensions and creating house in such a way that less iron will be used for slabs and no cement have to be used and more importantly it should be constructed by only plastic(hard or soft) with no smell from it.....!!
hope u give a reasonable answer!!