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LAUNCHED AT GREENBUILD 2026

The next generation of EC3 is here

EC3 2.0 Beta delivers a faster, more intuitive experience, improved data quality and expanded global coverage, so the industry can make better-informed, lower-carbon material decisions.

At Greenbuild Oct 20–22? Visit us at the Autodesk booth #1137 for a first look.

What We Do

The building and construction sector is responsible for 40% of global greenhouse gas emissions – much of which can be attributed to embodied carbon. Building Transparency arms building industry professionals with the information they need to:

Set Achievable Carbon Reduction Targets

Our tools enable users to establish a project’s potential and realized upfront embodied carbon emissions, as well as set baselines and targets.

Identify Low-Carbon Materials

The EPD database allows users to search, filter, and compare building products and identify the best options to meet their goals.

Reduce the Sector’s Overall Impact on Climate Change

Together, our programs, tools, and resources drive widespread embodied carbon awareness and action in the public and private sectors.

Meet Our Tools

Our tools provide the actionable data and insights needed to shape a better building future by lowering the carbon footprint of the built environment. We continue to optimize the capabilities and features of both tools to support users in reducing embodied carbon emissions at scale.

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EC3: Embodied Carbon in Construction Calculator

Available globally, the free, open-access EC3 tool and its underlying digitized EPD database encourage low-carbon specification and procurement to meet building and infrastructure project sustainability goals in line with the level of action needed to mitigate climate change.

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tallyLCA: Empowering Data-Driven Design

tallyLCA is a whole-building life cycle assessment (LCA) tool that allows architects and engineers to see – in real-time – the impact of their design decisions on the overall carbon footprint of a project.

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Join Our Mission

Building Transparency’s core mission is to provide open access data and tools necessary to enable broad and swift action across the construction industry in addressing embodied carbon’s role in climate change

Our Partners

Learn more about our partners and supporters here.

View Our Integrations

To solve our embodied carbon problem, we need an ecosystem of aligned and harmonized solutions. That’s why we work hard to support integrations with both the EC3 tool and its EPD database with leading software and solutions providers.

Committed to Security & Reliability

Building Transparency is committed to ensuring the confidentiality, integrity, and availability of your data. We comply with industry standards and regulations and undergo annual security audits. You can view our security monitoring and request SOC 2 Type 2 report in our Trust Center.
 
Our tools are constantly monitored by our team and running on trusted servers. You can view live status of our API and application on our status page.