One Click LCA

One Click LCA

Win64, English

One Click LCA
One Click LCA is the #1 easy and automated life cycle assessment software that helps you calculate and reduce the environmental impacts of your building & infra projects, products and portfolio.

General Usage Instructions

How to use the Autodesk® Revit® Integration

For the most recent version of instructions, please visit

Watch our tutorial video of the tool basic functionalities and test the web interface to explore how the tool works before working in the plug-in and exporting the model to the web-interface.

  • Step 1: Open your project on Revit

To be able to isolate objects in the Revit model using One Click LCA Add-in, please make sure that you are in 3D view. The view can be selected by navigating to View tab and pressing on “3D view” as seen in the screenshot.

  • Step 2: Click “LCA in Cloud” or “LCA in Revit”.

“LCA in Cloud”: Exports quantities directly with default settings.

“LCA in Revit”: Allows editing plugin settings and starting your work inside Revit before exporting, or to work purely inside Revit.

  • Step 3: If chosen “LCA in Revit”, start by reviewing settings.

In this tab, you can select Scope, define used and exported Revit parameters, and most importantly decide if you wish to split objects (families) into materials or not. For less detailed model, It is strongly suggested that you select to not split the objects and instead use the whole objects and their area and map them to constructions or EPDs that represent composite products (eg external walls or slabs)

  • Step 4: Review and adjust Model and Categories tabs 

In the Model tab, you can define the phases and linked models that shall be accounted for in the assessment. The current phase is selected by default, and the selection allows only one phase at a time to avoid duplicate materials exporting. If you use a linked model, please make sure it is defined which model is chosen, select or de-select models if needed.

In the Categories tab, you can further adjust for each individual object whether it shall be included in the assessment or not, if it shall be broken down to materials or kept as composite object and last, what shall be the default units for each building part or object.

  • Step 5: Review materials and start mapping them in the Materials tab.

To generate automated mappings inside the plugin (Expert feature), users need to first log-in (at the Login tab) and then navigate to the Results tab.

Mapping can be also done in the web interface, after the export.

The updated material list and most updated choices for mappings in the plugin, can be exported at any time by clicking “LCA in Cloud” button inside the plugin.

Remember that you can use the “Isolate Materials” feature to understand which Revit element is each material row referring to.

Show “LCA profile” feature enables you to see the details of the selected environmental profile (need to be logged in).

Please mind that in online interface some mappings might change depending the tool that you select to import the data to, and the allowed data for that specific tool.

  • Step 6: Generate results

See Results and Graphics to analyze your design carbon impacts (Expert features).

  • Step 7: Export your model data

Click 'Run LCA' to export your model to One Click LCA web-interface.

  • Step 8: Follow general import guidance

Click on the link here to find the article on the import process in One Click LCA




The installer that ran when you downloaded this app/plug-in from Autodesk App Store will start installing the app/plug-in. OR, simply double-click the downloaded installer to install the app/plugin.

To uninstall this plug-in, exit the Autodesk product if you are currently running it, simply rerun the installer, and select the "Uninstall" button. OR, click Control Panel > Programs > Programs and Features (Windows 7/8.1/10/11) and uninstall as you would any other application from your system.

Additional Information

Known Issues


Company Name: One Click LCA
Support Contact:

Author/Company Information

One Click LCA

Support Information

Please visit the One Click LCA Help Centre for support:

Version History

Version Number Version Description


This is a new version of the One Click LCA™ plugin for Autodesk Revit 2018, 2019, 2020, 2021, 2022 and 2023. Users of Autodesk Revit 2016 and 2017 should use the app version 2.1 instead which is available from our Help Centre (


Adds support for Revit 2020 and allows benchmarking embodied carbon against Carbon Heroes Benchmark from One Click LCA


Adds support for Revit 2019 and allows selecting project phase as well as improves the material mapping and result analysis capabilities.


Major version update that adds a lot of new functionality


Added support for Revit 2018


Initial release.
Go top