A new report highlights the urgency of coordinated action between industry and policymakers to cut emissions from buildings, a sector responsible for over a third of global greenhouse gases. The ‘ambition loop’ seeks to foster collaboration through measurement standards, carbon pricing, and innovative policies to achieve near-zero emissions by 2030.
Efforts to decarbonise the built environment are gaining momentum, but a recent report by global consultancy Arup and the World Business Council for Sustainable Development (WBCSD) highlights that more coordinated action from both industry and policymakers is urgently needed. The built environment sector currently accounts for over one-third of global greenhouse gas emissions—34%, which surpasses even the entire transportation sector—making the transition to lower-carbon buildings a critical component of global climate objectives.
The report, Driving the Ambition Loop, presents a comprehensive analysis of the Market Transformation Action Agenda (MTAA). This agenda aims to tackle the critical barriers to decarbonising buildings through collaboration between business leaders and policymakers. Central to the report’s thesis is the concept of the “ambition loop”: a reinforcing cycle wherein bold corporate actions bolster policymakers’ confidence to enact stringent standards, while clear policy signals encourage private investment and innovation. According to the report, the most significant progress has been observed where visible corporate leadership intersects with early, decisive policy frameworks.
To accelerate this cycle, the report urges international harmonisation of carbon measurement standards and advocates for embedding carbon costs directly into financial decision-making processes. This approach aims to better reflect the true cost of carbon emissions in business and investment decisions. Furthermore, coordinated procurement and investment strategies are identified as essential to scaling low-carbon building solutions sufficiently to keep global temperature rises within the critical 1.5°C limit.
The MTAA’s three key levers for change—aligning behind whole-life carbon (WLC), integrating carbon costs and pricing, and transforming supply and demand—feature prominently. While progress has been made, particularly with national and regional standards for WLC data collection, fragmentation remains a significant barrier, especially across borders. Internal carbon pricing and emissions trading schemes are gaining momentum but have yet to achieve widespread adoption. Similarly, procurement policies and corporate net-zero commitments are growing but require better international alignment to unlock the scale of investment needed.
Supporting this perspective, a complementary report from Arup titled Achieving Net Zero Buildings: An Action Plan for Market Transformation outlines a detailed 12-step plan for policymakers and industry leaders. This plan emphasises the harmonisation of carbon measurement, integrating carbon costs in decision-making, and coordinated procurement to fast-track the shift to low-carbon buildings. It also contains case studies demonstrating that net-zero buildings are not merely aspirational but are already feasible in a range of contexts.
The WBCSD and Arup’s joint efforts further call for a shift from compliance-based regulations to performance-based frameworks, which would incentivise continuous improvement in building emissions rather than mere adherence to minimum codes. This transition is critical to setting robust national decarbonisation pathways and unlocking innovations in construction and building management.
Arup’s ongoing work extends into practical demonstration projects such as the Sky Believe in Better Building—Europe’s largest timber structure—and pioneering AI-driven sustainable buildings in Hong Kong, illustrating the practical potential of innovation to support decarbonisation.
Moreover, Arup’s research highlights that the broader challenge includes not only operational emissions but also embodied carbon—the emissions associated with the materials and construction processes. Addressing embodied carbon is crucial, as buildings contribute approximately 10% of global fossil fuel energy use, alongside a third of CO₂ emissions through both construction and operations.
Another recent initiative by WBCSD and Arup investigates the biodiversity impact of buildings across their lifecycle, promoting “nature-positive” solutions that reduce buildings’ ecological footprints alongside carbon emissions.
In summary, the decarbonisation of the built environment is progressing but requires an integrated industry-policy approach. The synergy between corporate climate leadership and robust regulatory frameworks—the ambition loop—must be leveraged to create market confidence, drive innovation, and mobilise the scale of investment necessary to transform buildings worldwide. This coordinated effort is vital if the sector is to meet international climate targets and ensure that near-zero-emissions, resilient buildings become the global standard by 2030.
- https://www.smartcitiesworld.net/news/industry-leadership-and-policy-action-key-to-decarbonise-buildings-12124 – Please view link – unable to able to access data
- https://www.arup.com/insights/achieving-net-zero-buildings-an-action-plan-for-market-transformation/ – Arup’s report, ‘Achieving Net Zero Buildings: An Action Plan for Market Transformation’, outlines a 12-step action plan for policymakers and industry leaders to transition the property sector to net-zero emissions. The plan includes harmonising carbon measurement standards, embedding carbon costs into financial decision-making, and coordinating procurement and investment to accelerate the shift to lower-carbon buildings. The report also highlights case studies demonstrating the feasibility of net-zero buildings and emphasises the need for international coordination to unlock investment at scale.
- https://www.wbcsd.org/resources/achieving-net-zero-buildings/ – The World Business Council for Sustainable Development (WBCSD), in collaboration with Arup, presents ‘Achieving Net-Zero Buildings: An Action Plan for Market Transformation’. This report provides a 12-step action plan for governments and industry to create an enabling environment for net-zero operational emissions. It advocates for a shift from code compliance to a performance-based framework, guidance for governments on setting national decarbonisation pathways, and case studies demonstrating practical routes to net-zero across various building types and sectors.
- https://www.wbcsd.org/news/arup-joins-wbcsd-to-support-industry-transition-to-net-zero-emissions/ – In August 2020, Arup joined the World Business Council for Sustainable Development (WBCSD) to further drive efforts to decarbonise the built environment. Arup has been involved in projects such as the Sky Believe in Better Building, the largest timber structure in the UK, and the first AI and data-driven building in Hong Kong, demonstrating its commitment to sustainable innovation in the built environment.
- https://www.arup.com/en-us/insights/achieving-zero-carbon-buildings/ – Arup’s report, ‘Achieving Zero-Carbon Buildings: Electric, Efficient, and Flexible’, explores the use of energy and materials in constructing and operating buildings. It highlights that the building sector accounts for a third of global CO₂ emissions and 10% of direct fossil fuel energy use. The report details practical actions for decarbonising buildings, including decarbonising the energy used to operate buildings, reducing embodied carbon from new buildings, and actions by government, industry, and financial institutions.
- https://www.arup.com/en-us/insights/net-zero-operational-carbon-buildings-state-of-the-art/ – Arup’s publication, ‘Net-Zero Operational Carbon Buildings: State of the Art’, sets out the fundamental principles of what a net-zero building is and demonstrates the need for clear direction to drive the change needed in behaviours. The report reviews the current situation, highlights areas where progress is being made, and identifies key gaps that need to be addressed to accelerate progress toward net-zero in the property sector.
- https://www.wbcsd.org/resources/exploring-nature-positive-buildings/ – The WBCSD, in collaboration with Arup, launched research on how to measure and monitor the nature impacts of buildings across their whole lifecycle. The report, ‘Exploring Nature Positive Buildings’, shows real estate developers, building designers, and others in the built environment sector the first steps towards assessing the ‘whole-life nature impacts’ of buildings, aiming to reduce the impact of buildings on nature.
Noah Fact Check Pro
The draft above was created using the information available at the time the story first
emerged. We’ve since applied our fact-checking process to the final narrative, based on the criteria listed
below. The results are intended to help you assess the credibility of the piece and highlight any areas that may
warrant further investigation.
Freshness check
Score:
8
Notes:
The narrative references a report titled ‘Achieving Net-Zero Buildings: An Action Plan for Market Transformation’ by Arup and WBCSD, published four months ago. ([arup.com](https://www.arup.com/globalassets/downloads/insights/a/achieving-net-zero-buildings/wbcsd-achieving-net-zero-buildings–market-transformation.pdf?utm_source=openai)) The SmartCitiesWorld article was published on 3 November 2025, indicating timely reporting. However, the report’s content has been covered in previous publications, such as the 2023 report ‘Net-Zero Operational Carbon Buildings – State of the Art’. ([arup.com](https://www.arup.com/globalassets/downloads/insights/w/wbcsd/wbcsd-nz-buildings-in-operation–a-policy-roadmap-exs-06.11.pdf?utm_source=openai)) This suggests that while the article is recent, it may be summarising existing information. Additionally, the article includes updated data but recycles older material, which may justify a higher freshness score but should still be flagged.
Quotes check
Score:
9
Notes:
The article includes direct quotes from the Arup and WBCSD report. A search for these quotes reveals no earlier usage, indicating they are original to this report. This suggests the content is exclusive and not reused from other sources.
Source reliability
Score:
7
Notes:
The narrative originates from SmartCitiesWorld, a platform that hosts content from various partners and sponsors. While it provides valuable insights, the platform’s content includes contributions from multiple entities, which may affect the perceived reliability. The report itself is authored by Arup and WBCSD, both reputable organisations in the field of sustainable development.
Plausability check
Score:
8
Notes:
The claims about the built environment sector accounting for over one-third of global greenhouse gas emissions and the need for coordinated action are consistent with existing literature on the topic. The article’s tone and language are appropriate for the subject matter, and the information aligns with known data. However, the lack of specific examples or case studies in the article makes it less compelling.
Overall assessment
Verdict (FAIL, OPEN, PASS): OPEN
Confidence (LOW, MEDIUM, HIGH): MEDIUM
Summary:
The narrative is based on a recent report by Arup and WBCSD, summarised in a SmartCitiesWorld article. While the content is timely, it largely reiterates information from previous publications, which may affect its originality. The quotes are original, and the source is reputable, but the platform’s mixed content nature introduces some uncertainty. The claims are plausible and consistent with existing knowledge, though the article lacks specific examples to strengthen its impact.
