Desalination plants convert salt water to fresh water. They produce 1.5 portions of brine to make 1 portion of fresh water. Throwing this back into the sea damages the marine ecology because it cannot be treated further. Can we make use of the brine waste to make a construction material and integrate the material within architecture, such as architectural surfaces encrusted with species? The Crustose coralline algae (CCA) - creates CaCo3 biofilms forming precipitate layers to encrust the substrate. Finally, the proposal is aiming at providing waste solutions to turn it into a useful material.