Select Page

Calculate embodied & life-cycle carbon with One Click LCA

User-friendly low-carbon construction platform for the United States to help you reach net zero goals and gain certification credits.

Building LCA made easy

Easy embodied and life-cycle carbon assessments for the United States.

Early-phase carbon assessments

Generate quick and easy baseline buildings and measure you project’s carbon footprint before you even start drawing. More on early carbon optimisation

Automate with BIM integrations

One Click LCA integrates with Revit, Grasshopper, Excel and all leading BIM and BEM tools for quick and easy whole building LCA that fits into your workflow. 
More on our data integrations

Material benchmarking

Use our powerful comparison tools to benchmark your materials against the world’s largest construction environmental database. More on our extensive database

Identify hotspots

Identify the most contributing elements at-a-glance, demonstrate carbon reductions and create reports tailored to a wide range of certification schemes. More on the certifications we support

Trusted by

Advanced eco-design features

Go a step further and get powerful eco-design features to optimize structural and material impacts

Extensive material choices

Get access to generic material data, manufacturer-specific data, and add your own private data to perform quick calculations.

Easy material comparisons

Compare the environmental impacts of construction products easily and choose the most sustainable and cost-efficient option for your project.

Quick design comparisons

Create several designs to compare options and optimize impacts.


Architects and Engineers

Sustainability Consultants


We make compliance easy for you

With One Click LCA, you can get LEED credits, comply with a wide range of voluntary initiatives and meet net zero requirements

LEED North America

  • Achieve up to 10 LEED credits.
  • Tailored LEED templates for reporting.
  • Gain an additional Building Products Disclosure Optimisation credit.

Learn more about LEED v4

Living Building Challenge

  • Easily create baseline buildings and design alternatives.
  • Identify high-impact materials at-a-glance.
  • Extensive database to help you optimize your design  to meet emissions targets.
  • Use our net Zero Tool to achieve the net positive carbon credit.

SE 2050

  • Deliver your Embodied Carbon Action Plan.
  • Calculate your firm’s average embodied carbon.
  • Complete a concept phase embodied carbon comparison study.

Learn more about SE 2050

Buy Clean Policies

Pioneered in California in 2017, Buy Clean policies are now being introduced across the US.

  • Calculate upfront embodied carbon emissions.
  • Easily identify high-impact materials.
  • Access EPD data from around the world.
  • Request data from manufacturers from within the platform.

Get the right plan for you

One Click LCA offers different subscription plans for North America. Choose a plan that’s right for you and select any add-ons to help you go even further 

Interested in Environmental Product Declarations?

Find out what EPDs are, why they are needed in North America and how to get them with our free quick guide.

What do our customers say about us?

“One Click LCA has been like a godsend to us with all the different types of databases and the graphic quality. As architects, we like to see things visually: all the material flows, all the LCA stages and how the material flows inform the different life cycle stages. Those graphics are pretty amazing in One Click LCA.”
Jude Chakraborty


“One Click LCA is great… There are both industry-average environmental product declarations (EPDs) and also a lot of manufacturer-specific EPDs, so it has a very large database. That’s a crucial factor in understanding the variation in impacts.”

Anthony Pak

Principal, Priopta

What makes us different?

User-friendly software

One Click LCA is the #1 easy and automated web-based life cycle assessment software that is easy to navigate even for beginners. It is helpful for single users as well as teams who wish to design low-carbon projects and achieve certification credits.

One Click LCA’s extensive global database

One Click LCA integrates data from all of the available EPD platforms around the globe. EPDs in the One Click LCA database include detailed technical descriptions about building products and comply with EN 15804 and/or ISO 14025 standards.

BIM and BEM Software Integrations

Import BIM and BEM models to One Click LCA or use plugins to optimize within your design software. One Click LCA supports integrations with design data from Revit, Excel, Tekla, and 15+ integrations.

Outstanding customer support

One Click LCA experts offers extensive training and support to help you get the most from our platform. We always deliver expert customer support for you, and you can hold us accountable for our customer promises.


What data is available in One Click LCA? Does it include datasets from the U.S. and Canada?

One Click LCA integrates all U.S. and Canada EPDs. It contains more than 100k+ data points and integrates data from nearly all of the EPD platforms around the globe, including datasets from the U.S. and Canada, and uses TRACI 2.1.

Can One Click LCA help me to achieve Net Zero Goals?

Yes. Our Net Zero Tool allows you to quantify carbon savings, for example, renewable energy sources or carbon sequestration, as well as the carbon-emissions and offers a number for how much more you need to offset to comply with Net Zero Carbon definitions. 

Can I use it with Revit and other BIM tools?

Yes. One Click LCA has a two-way integration with Revit and other tools like Rhino and Grasshopper.

The bidirectional nature of these integrations enables you to not only import BIM models and data into One Click LCA – but also to perform an embodied carbon assessment within Revit, Rhino and Grasshopper.

Watch our webinar to find out more: BIM-based & Parametric LCA

Can I use One Click LCA for schematic design or even earlier?

You can. One Click LCA’s Carbon Designer 3D tool supports very early carbon optimisation and integrates with early design tools like Rhino and Grasshopper. To understand more about this watch our webinar:
How to optimize embodied carbon in early design phases with One Click LCA and Rhino

Can I perform an LCA if I don’t have any material quantities?
Yes, the Building LCA tool allows you to perform life cycle assessments at any design stage. When no material quantities are available you can generate your own using the Carbon Designer add-on. The only things you need to know are building type, gross floor area, and number of floors. The rest you can either customize or use default values. Carbon Designer will generate shoebox material quantities that can be imported to your LCA model.
Do I need to know from which manufacturer my materials will come?
You don’t necessarily need to know from which vendor you’ll be procuring the materials. If you don’t have manufacturer specific information, you can use our extensive environmental impact dataset which covers all construction product types. We integrate specific manufacturer EPDs but also generic data so that you can always find the right match.
Can I use One Click LCA to create a baseline building for LEED?
Yes. We have detailed four baseline strategies that you can use for LEED certification in our helpdesk.
Can I import data from BIM platforms and other software?
Yes, One Click LCA integrates with multiple software platforms to make it easier to upload your material quantities. Supported integrations include: Revit, Rhino and Grasshopper, Tekla Structures, Trimble Connect, IES-VE, Designer Builder and Excel. You can find a list of our supported integrations here.
How can I know which materials have the highest impacts?
We have a tool that shows the contribution of all the individual structures and materials and highlights those with higher emissions. This enables you to easily locate the components with the highest emissions.
Do I need EPDs for all the materials to be able to calculate an LCA?
When calculating a Life-Cycle Assessment you should always choose the best quality data available, which means that, if the material manufacturer you are planning to work with has product EPDs available following your calculation standard, you should use them. However, this might not be possible in all cases. If you are in an early design stage you may not yet know which manufacturer you are going to choose. When no exact information is available, you should use the second best option, which may mean similar products from another manufacturer, product category level EPD, or average LCA data for the product in question.


One Click LCA provides both an extensive database of EPDs and average data for the products. We also offer more detailed guidance to our clients to help them choose the most relevant datasets.

Ready to get started?

Book a demo with our local specialists

Resource Hub

Ebook, Guides & Webinars

A one-stop hub for everything you need to know about building life cycle assessment, data, and business cases around low-carbon design & construction