We’re fostering a better building future by addressing embodied carbon’s role in climate change. Building Transparency's core mission is to provide the open access data and tools necessary to enable broad and swift action across the building industry in addressing embodied carbon's role in climate change.
Our premier service is the Embodied Carbon in Construction Calculator (EC3), a free database of construction EPDs and matching building impact calculator for use in design and material procurement.
Development of this sustainability software service by C-Change Labs is a program of Building Transparency, a Washington State 501c(3) public charity. It is made possible by the support of forward-thinking industries, environmental foundations, and technology companies. Its content and design is guided by a passionate community of building industry professionals who serve as pilot users and beta testers. To help us grow this free, open-access, public-interest resource, contact: sponsorship@buildingtransparency.org
The EC3 tool is hosted on Azure by Microsoft.
We’re fostering a better building future by addressing embodied carbon’s role in climate change. Building Transparency's core mission is to provide the open access data and tools necessary to enable broad and swift action across the building industry in addressing embodied carbon's role in climate change.
Our premier service is the Embodied Carbon in Construction Calculator (EC3), a free database of construction EPDs and matching building impact calculator for use in design and material procurement.
Development of this sustainability software service by C-Change Labs is a program of Building Transparency, a Washington State 501c(3) public charity. It is made possible by the support of forward-thinking industries, environmental foundations, and technology companies. Its content and design is guided by a passionate community of building industry professionals who serve as pilot users and beta testers. To help us grow this free, open-access, public-interest resource, contact: sponsorship@buildingtransparency.org
See EC3 in action through screenshots and short videos.
EC3 Alternatives
See how EC3 stacks up against similar tools before you decide.
FEATURED
One Click LCA
One Click LCA is a sustainability platform that helps architecture, engineering, construction, and manufacturing teams measure and reduce environmental impacts. It supports life-cycle assessments, embodied carbon calculations, whole-building analysis, product comparisons, and regulatory reporting.
By connecting design data with extensive environmental databases, One Click LCA helps users evaluate alternatives, meet certification requirements, and make informed low-carbon decisions throughout project development.
Real-Time LCA leverages an advanced database of materials, BIM integrations, automation and AI to democratize and amplify Life Cycle Assessment (LCA) capabilities and insights for built environment professionals, to minimize the environmental impact of construction.