We've seen plastic bottles used in houses before, but this is something else. Discarded plastic bottles are packed tight with sand, resulting in brick-like features if not one-upping the traditional building material. According to the BBC article, if done right - the sand needs to be sieved to rid of rocks, these plastic bottle "bricks" are 20 times stronger than bricks, insulating, and bulletproof!
This project is backed by the Nigerian NGO, Developmental Association for Renewable Energies (DARE) with assistance from the London-based African Community Trust. Not only is it three times cheaper to build with sand-packed discarded bottles than with brick, it also looks pretty cool with the circular bottle shapes giving the structures patterns and color.
Check out more photos and info at Inhabitat!
Images from BBC.