Energy Labels in Rental Listings: What the Law Requires

Last updated September 21, 2026

Short answer: If you advertise a home for rent – including online – the energy label from a valid energy label report (energimærkning) must appear in the listing, and the tenant must get the report before signing. This doesn't depend on the apartment's size, because the label belongs to the building. The scale has 9 classes, from A2020 to G.

A landlord puts together a great-looking listing, uploads ten photos, writes a thorough description – and then gets stopped by something she hadn't seen coming: the energy label (energimærke). Disclosing it isn't just good practice. It's a legal requirement, and it has to appear in the listing itself, not just in the lease.

What Does the Law Say?

When you advertise a home for rent – including online – the energy label from a valid energy label report must appear in the listing (section 8 a of the Danish act on energy savings in buildings, lov om fremme af energibesparelser i bygninger), and the tenant must receive the energy label report before the lease is signed (section 7). Breaking these rules can be punished with a fine (section 32).

The requirement doesn't depend on the size of the apartment: the energy label belongs to the building, so a 45 m² apartment in an apartment block must also have the energy label in its listing. An energy label report is valid for 10 years.

Which Homes Are Exempt?

Exemptions include detached buildings under 60 m², summer houses, and lets of no more than 4 weeks at a time (sections 4, 5 and 17 of the executive order on energy labelling of buildings, bekendtgørelse om energimærkning af bygninger). Note that the 60 m² refers to the whole building's total floor area – a small detached house, for example – not to the size of the apartment you're renting out. Listed (protected) buildings are also exempt.

The rules are under revision: the Danish Energy Agency (Energistyrelsen) has had a draft of a new executive order out for consultation that may change the exemptions. As of September 2026, the 2023 executive order still applies, but check ens.dk before you advertise if your home is close to one of the thresholds. If you're unsure – for example when renting out a single room in your own home – ask the Danish Energy Agency.

Who Has to Arrange the Energy Label?

As a rule, it's the owner of the building (section 5). If you're renting out a house, that's you. If you're renting out a condominium apartment (ejerlejlighed), it's the owners' association (ejerforening) that must arrange the energy label report and hand it to you free of charge (sections 5-7). If the association already has a valid energy label report, it must make it available no later than 8 days after you ask for it (section 6(4)).

What Is the Energy Label Scale?

An energy label tells you how energy-efficient a building is. The scale has 9 classes, because A is split into three: A2020, A2015, A2010, B, C, D, E, F and G. A2020 is the most energy-efficient class, and G the least. There's no plain "A".

In the listing, it's enough to write something like "The building has energy label C", or to show the official label.

How Does LejLet.nu Enforce This?

The listing wizard currently requires you to fill in the energy label when you enter a home size of 60 m² or more. So we only require it at 60 m² or more, but the law requires it for every home in a building that must be energy-labelled – so always fill it in, even when the home is smaller. Choose the class stated in your energy label report.

Once the listing is published, the energy label appears as a clearly coloured badge right on the listing, visible to anyone who views the home.