A new global framework for responsible timber construction was launched yesterday at COP30 in Beelem, Brazil. With construction responsible for 40% of global emissions, the Principles for Responsible Timber Construction are being hailed as a turning point in the fight against climate change and deforestation.
Backed by more than 300 organisations across business, government, and civil society, the Principles are designed to move beyond statements into practice. They are supported by rigorous evidence, practical implementation tools, and a new documentary, Our Future: Built by Nature, which premiered in the Blue Zone of COP30 before an audience of global environmental leaders.
Narrated by Kevin McCloud, from Grand Designs UK, and featuring contributions from Sir David Attenborough, the film showcases buildings from around the world that challenge conventional norms. “If you’re a policymaker, legislator, or advisor,” McCloud told delegates, “these Principles are written for you.”
The documentary presents a compelling case: scaling biobased construction necessitates policy reform and financial incentives: “The Principles offer the trust and framework needed to accelerate investment in low‑carbon solutions and reshape the built environment,” according to Claudine Blamey, Chief Sustainability Officer at Aviva.
It comes as Bauhaus Earth has released a new Guidance Report, offering the latest scientific evidence and policy pathways to shift trillions of capital away from polluting industries. “Systemic transformation is possible,” said Bauhaus Earth CEO Philip Misselwitz. “But it requires bold action across governance, markets, and technology.”
Also launched was an interactive Implementation Framework on the Built by Nature Knowledge Hub, designed to help professionals apply the Principles in real‑world projects. According to Paul King, CEO of Built by Nature, “these Principles are backed by science, endorsed globally, and are now supported by tools that make them actionable. Timber is no longer niche — it’s the responsible choice for global construction.”
The Principles have been informed through consultation with experts across the value chain and inputs from governments represented in the Forest & Climate Leaders’ Partnership (FCLP) ‘Greening Construction with Sustainable Wood’ initiative. They will now form part of the new Building for Forests Acceleration Plan, a global call to integrate sustainable wood into climate and housing policies in at least 30 countries by 2028 — including six in the tropics.
Six Timber Projects Show What’s Possible
Last month, Wood Central announced the six winners of the Responsible Timber Construction Prize, who were judged under the new Principles. Selected from more than 400 case studies across 38 countries, the projects demonstrate how timber can cut embodied carbon, extend building life, and strengthen local supply chains.
Among the winners:
- Appelweg, Amsterdam (Moos for Ymere) — A four‑storey hybrid CLT and concrete housing block delivering density with lower upfront carbon.
- The Black and White Building, London (Waugh Thistleton) — A six‑storey retrofit proving adaptive reuse and engineered timber can slash emissions.
- Circular Two‑Bedroom Home, Kampala (Easy Housing Concepts Uganda) — A prefabricated, disassemblable prototype translating circularity into affordable housing.
- Heartwood, Seattle (atelierjones) — An eight‑storey hybrid mass‑timber residential scheme meeting scale, cost, and carbon targets.
- La Maison de la réserve écologique, Épinay‑sur‑Seine (Archipel Zéro) — A civic project pairing glulam with straw, earth, and recycled cellulose to build circular supply chains.
- Queensland Fire and Emergency Services HQ, Maryborough (Baber Studio) — A cyclone‑resilient civic complex assembled rapidly with CLT and glulam.
To learn more about Built by Nature, click here for Wood Central’s article from earlier this year.
