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Building life cycle assessment software for Level(s)

Automate building LCA, LCC and achieve Level(s) macro-objectives using One Click LCA software


Level(s), EU taxonomy, and more

Certified database

What is Level(s)?

Level(s) is framework adopted in Europe to measure, report, and share the environmental performance of their buildings. The new EU Taxonomy requires to follow Level(s)indicator 1.2 to measure life-cycle Global Warming Potential for new large buildings. 

The Level(s) certification framework is organised into three levels as follows:

Levels assessment made easy

Everything you need to perform carbon assessments according to Level(s) framework

Perform early-stage carbon assessments

Generate typical buildings and perform carbon assessments compatible with the Levels framework during early- stages of your project and identify hotspots.

Automate LCA with BIM integrations

Perform EN 15978 compliant LCAs quickly with BIM integrations such as Revit, IES, Tekla, Rhino & Grasshopper (for parametric studies), and many more.

Get Level(s) compliant results

Calculate environmental impacts according to Levels scope, compare designs, and optimize impacts.

Identify hotspots

Identify the most contributing elements at-a-glance with One Click LCA’s advanced visualisation tools.

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Why choose One Click LCA for Levels?

Level(s) compatible carbon designer 3D Software

Using carbon designer 3D, you can create reference buildings and estimate the embodied carbon with just building type and size.

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Access to global and European database

One Click LCA database contains more than 130k datapoints and integrates data from all of the available EPD platforms around the globe.

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Seamless data import

One Click LCA supports integrations with data from Revit, Excel, Tekla, and more than 15 other integrations.

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Advanced customer support and training

One Click LCA experts offer training and support in regional languages and English to make the process easier for you.

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Levels macro objectives and core indicators supported by One Click LCA

With One Click LCA you can achieve Levels macro objectives listed below

How does it work?

One Click LCA software tools that help you to achieve effortless compliance with Levels framework

What users have said about us

“One Click LCA is a very beginner-friendly tool for anyone looking to start learning about building LCA. We have dozens of employees who have successfully calculated their own project from scratch with it”

Development Manager at YIT, Finland, Carbon Expert of the Month, August 2021

“The software allows us to efficiently perform LCA and LCC analyses related to the life cycle of a building and achieve points in the BREEAM and LEED certification”

Head of sustainability and a senior sustainability advisor, Gleeds Polska, Carbon Expert of the Month, July 2021


What is Level(s)?
Level(s) is a voluntary framework that building specialists in Europe can adopt to measure, report, and share the environmental performance of their buildings.
How do I get access to the Level(s) tools?
With One Click LCA, you can perform life cycle analysis according to Level(s) requirements. Choose a subscription plan that fits your needs.
Is training offered for levels analysis?
We offer training, support, software customization, and selective consulting services in life cycle assessment and life cycle costing. You can read more about the training here.
What is included in the scope?
The minimum scope of building parts and elements to be included in your Level(s) calculation is shown below. Construction products that are procured and installed by the building occupiers are excluded from the scope.

Building parts Related building elements
Shell (substructure and superstructure)
Foundations (substructure) Piles


Retaining walls

Load-bearing structural frame Frame (beams, columns, and slabs)

Upper floors

External walls


Non-loadbearing items Ground floor slab

Internal walls, partitions, and doors

Stairs and ramps

Facades External wall systems, cladding and shading devices

Façade openings (including windows and external doors)

External paints, coatings, and renders

Roof Structure


Parking facilities Above ground and underground (within the curtilage of the building and servicing the building occupiers)
Core (fittings, furnishings and services)
Fittings and furnishings Sanitary fittings

Cupboards, wardrobes, and worktops (where provided in residential property)


Wall and ceiling finishes

Floor coverings and finishes

In-built lighting system Light fittings

Control systems and sensors

Energy systems Heating plant and distribution

Cooling plant and distribution

Electricity generation and distribution

Ventilation system Air handling units

Ductwork and distribution

Sanitary systems Cold water distribution

Hot water distribution

Water treatment systems

Drainage system

Other systems Lifts and escalators

Firefighting installations

Communication and security installations

Telecoms and data installations

External works
Utilities Connections and diversions

Substations and equipment

Landscaping Paving and other hard surfaces

Fencing, railings, and walls

Drainage systems

What type of data can be used for Levels?
Overall Level(s) prioritizes the use of data that are high-quality and industry-specific.

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More on Levels

Link the articles, web pages, and webinars.