Here are my top 10 sustainable materials trending in 2025 that every designer must have in their moodboard.
1. Cross-Laminated Timber (CLT): Engineered wood panels that offer strength and sustainability, reducing reliance on traditional concrete and steel.
2. Hempcrete: A bio-composite made from hemp fibers and lime, providing excellent insulation and a negative carbon footprint.
3. Recycled Steel: Utilising existing steel reduces energy consumption and waste, offering a durable framework for modern constructions.
4. Rammed Earth: An ancient technique using natural materials like soil and clay, offering thermal mass and sustainability.
5. Mycelium Composites: Fungal networks grown into molds to create biodegradable and strong building components. I love this one.
6. Ferrock: A carbon-negative material made from recycled steel dust, offering a sustainable alternative to concrete.
7. Cork: Harvested from cork oak trees, this renewable material provides natural insulation and is fire-resistant.
8. Critical. Cleanstone: Transforming waste into beautiful and durable building materials, reducing landfill impact, near carbon neutral while promoting circular economy. How can I not put this on the list??!!
9. Bamboo: A fast-growing, renewable resource known for its strength and versatility in construction.
10. Sheep’s Wool Insulation: A natural insulator that's non-toxic, mold-resistant, and biodegradable. Our mates Harry Urquhart-Hay are doing great mahi in this space with Wisewool
Choosing sustainable materials from the above is not only the right thing to do, but it's becoming the new black.
And if your still not in this waka, well ... you not like us 
Let's continue to push the boundaries of design, ensuring our creative visions align with the wellbeing of te taiao.
For more insights and to see how sustainable materials like Critical. Cleanstone can elevate your next project, visit criticaldesign.nz or book a visit at your studio by using this link:
https://calendar.app.google/MJuF494ZhFXLbuwq9
#SustainableDesign #EcoInnovation #GreenBuilding #CircularEconomy #RecycledMaterials #FutureOfDesign #Cleanstone #ArchitecturalInnovation #DesignForChange #ZeroWaste #BuildingTheFuture