Energy passport

The energy passport in Luxembourg

If you have been told you need an Energiepass, you are most likely about to sell or to let. Here is what the law requires, in what order to go about it, and what the energy class actually does to the price.

We handle it

We arrange your energy passport

Expect one to two weeks from the first call to certificate in hand: a few days to get an appointment, a visit of thirty minutes to two hours, then anywhere from a few days to a fortnight for it to be issued. Because the energy class has to appear in the advertisement, that lead time is what sets your listing date. We contact an approved expert, book the appointment and tell you exactly which documents to gather.

What the expert will ask you for

Title deed, plans, year of construction, one to two years of heating bills, boiler type and year of installation, water heater, glazing, and the insulation history. We send you that list on the first call, so the visit does not have to be repeated.

By submitting this form you agree that Rive Gauche may contact you to arrange the visit. Your details are neither sold nor passed to third parties.

What it is

The energy performance certificate (CPE), commonly called the energy passport or Energiepass, states the building's calculated energy demand and its CO₂ emissions.

It assigns classes running from A+, the best, to I, the worst. The certificate carries two of them: the energy performance class and the thermal insulation class.

Who needs one, and when

The certificate is required at every change of owner or tenant. Selling is therefore not the only case: letting a property is enough to make it mandatory.

  • Selling a home: required.
  • Letting, or a change of tenant: required on exactly the same footing.
  • Building a home for which planning permission is needed.
  • Extension, alteration or substantial conversion above the prescribed thresholds.

Two exceptions: a sale for demolition, and a public sale by judicial process, seizure or public auction.

Source : Guichet.lu — Faire établir un certificat de performance énergétique (Energiepass)

How long it lasts

A CPE is valid for ten years. If one was drawn up when you bought or let the property before, check its date before ordering another: it may well still be valid.

Source : Guichet.lu — Faire établir un certificat de performance énergétique (Energiepass)

What the listing must show

Sale and rental listings appearing in commercial media must state the energy performance class and the thermal insulation class.

In practice the certificate governs the listing: without it you do not have the information the listing is required to carry. That is why it is requested several weeks before going to market, rather than at signing.

Source : Guichet.lu — Faire établir un certificat de performance énergétique (Energiepass)

How to obtain one

For a residential building the CPE is requested from a qualified professional: architects and engineering firms that are members of the OAI, or experts approved by the Ministry of the Economy. The expert visits, records the building's characteristics and issues the certificate.

The fee is borne by whoever requests the certificate, and the rate varies from one expert to the next: there is no official scale. Get two or three quotes. We publish no price range here, because there is no official source to cite for one.

Source : Guichet.lu — Faire établir un certificat de performance énergétique (Energiepass)

What the class does to the price

The energy class is one of very few objective, comparable figures in a listing. Every buyer reads it, and it bears on what they are willing to offer — all the more so now that heating costs have become a decision criterion. A valuation that ignores it misses part of the gap between two otherwise comparable properties.

Value my property taking its energy class into account

Our role

We arrange the energy passport for the properties we market: we instruct the expert, coordinate the visit and follow the certificate through to issue.

Only architects, OAI-member engineering firms and experts approved by the Ministry of the Economy may issue an energy performance certificate.

Source : Guichet.lu — Faire établir un certificat de performance énergétique (Energiepass)

Free checklist

Get the checklist of required documents

The full list of papers to gather in order to sell or let in Luxembourg, in the order you will be asked for them. One email address is all it takes.

By submitting this form you agree that Rive Gauche may email you the checklist and contact you about your project. Your details are neither sold nor passed to third parties.

General information, current at 6 August 2026 and based on the official sources cited. It does not constitute legal or tax advice.

All the steps of a sale in Luxembourg