About LCAbyg

LCAbyg is a tool that calculates life cycle assessments for buildings.

With LCAbyg, you can calculate a building's environmental profile and resource consumption. You enter information about the building parts and possibly the building's energy consumption. The program automatically computes the results in a table and generates figures and a summary report.

The calculations of environmental impacts are performed over the entire life cycle of the building, including the procurement of raw materials, production of building materials, energy and resource consumption during operation and maintenance, and disposal and possible recycling of building parts and building materials.

You can read more on the page About LCAbyg

News and updates

CO2 requirements for new buildings from year 2023

On March 5, 2021, several political parties adopted the agreement on the national strategy for sustainable construction. From 2023, requirements for buildings' climate footprints will be phased into the building regulations. This means, among other things, that all new buildings in the future must have a life cycle assessment (LCA). In 2023, new CO2 requirements will be introduced step-by-step.

Find the national strategy here

The development behind LCAbyg

LCAbyg was developed by BUILD (former Danish building research institute), Aalborg University with financial support from various actors in Denmark.

LCAbyg has been developed for the Danish construction industry and has from the beginning had focus on a Danish context. The development was carried out by BUILD in a broad collaboration with a large number of stakeholders in the Danish construction industry from 2014 until today. The first version was launched in 2015 in collaboration between SBi (now BUILD) and the Danish Energy Agency, as part of a construction policy strategy from the government in 2014.

The development of LCAbyg was based on the Excel tool SBi (now BUILD) had developed for the Green Building Council Denmark for DGNB certification of construction in Denmark since 2011.

LCAbyg is a nationally freely available tool. The first version was launched in 2015 and since then there have been a number of changes in the user interface and calculation core. LCAbyg is in constant development, and work is constantly being done to improve the existing functions, as well as add new functions, in close cooperation with the industry.

LCAbyg is used for e.g. education, public and private bodies, and in the newest version of LCAbyg, LCAbyg v5, it is possible to apply for the voluntary sustainability class (FBK) and the requirement in the Building Regulations from 2023.

LCAbyg has former been financed by:
• Energistyrelsen, Trafik- Bygge- og Boligstyrelsen, Bolig- og Planstyrelsen
• Elforsk
• Green Building Council DK
• Grundejernes Investeringsfond

LCAbyg is currently financed by Villum Fonden og Realdania.

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The team behind LCAbyg

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