Anyone looking to sell a flat or house in Germany will inevitably run into one particular document: the Energieausweis (Energy Performance Certificate). Many owners think of it as little more than an annoying formality that has to be produced at some point before the notary appointment. But it's worth taking a closer look. The Energy Performance Certificate tells you something real about the condition of a building, it influences buyers' decisions, and it's a legal requirement. Owners who understand the rules save themselves headaches – and can even use the certificate to position their property more effectively during the sales process.
What an Energy Performance Certificate actually tells you
The Energieausweis states how much energy a building requires for heating, hot water and, in some cases, ventilation. It's based on the Gebäudeenergiegesetz (GEG, Building Energy Act), which replaced the earlier Energy Saving Ordinance. For buyers and tenants, the certificate offers a first indication of how expensive day-to-day living costs might be and how much refurbishment could be needed. For sellers, it's above all one thing: mandatory.
Demand certificate vs. consumption certificate: what's the difference
There are two types of Energy Performance Certificate, and they measure different things.
The consumption certificate (Verbrauchsausweis) is based on actual consumption data from the past three years, taken from the occupants' heating bills. It's cheaper and quicker to produce, but has one drawback: it reflects how the occupants behave rather than the building itself. A frugal retired couple who rarely turn up the heating will produce better figures than a young family living in the exact same house. In other words, the consumption certificate tells you more about the residents than about the fabric of the building.
The demand certificate (Bedarfsausweis) works differently. An energy consultant calculates, based on construction documents, insulation standards, windows, heating system and building envelope, how much energy the house would theoretically need, regardless of how the occupants actually heat it. This method is more time-consuming and expensive, but it's considered more objective and more meaningful, especially for older buildings.
Which certificate is required depends on the building. New builds, and buildings with fewer than five residential units for which a building application was submitted before 1977 and which haven't been renovated to a comparable new-build standard, are generally required to have a demand certificate. For all other existing buildings, owners can choose between the two options.
Energy efficiency classes A to H
For several years now, the figures in the Energy Performance Certificate have also been translated into efficiency classes ranging from A+ to H, similar to the labels you'd find on a fridge or washing machine. This makes the numbers easier to grasp for non-experts.
- A+ to A: Very low energy demand, typical of new builds with modern insulation, heat pumps or passive-house standards.
- B to D: Solid to average figures, often found in renovated older buildings or properties from the 1990s and 2000s.
- E to G: Elevated to high energy demand, common in unrenovated buildings from the 1960s to 1980s.
- H: Very high energy demand, usually seen in unrenovated older buildings with no insulation and outdated heating technology.
Important for buyers: the class alone is no substitute for a viewing or a proper technical assessment. Two houses in the same class can involve very different refurbishment costs, depending on whether only the roof needs work or the whole building does. The Energy Performance Certificate is a useful first indicator, but it's not a full refurbishment survey.
What the figures actually mean for buyers
Prospective buyers should pay attention to two figures on the certificate: the final energy demand or consumption in kilowatt-hours per square metre per year, and the energy sources used. A property in class F or G isn't automatically a bad purchase. Often the price can be negotiated accordingly, and targeted measures such as a new heating system, insulation of the top floor ceiling, or new windows can noticeably improve the rating. If you're planning to renovate anyway, such properties can be genuinely attractive, provided the modernisation budget is factored in from the start. It's also worth considering the building's energy status in light of the GEG's requirements for heating systems, which will need to be taken into account whenever a system is replaced.
Buyers who are unsure how to weigh the figures on the Energy Performance Certificate against the asking price benefit from an independent assessment. This is exactly where we can help as part of our services, offering a realistic read on the property's condition and the costs to expect.
Seller obligations: what the law requires
Sellers, as well as landlords, are legally required to present a valid Energy Performance Certificate at the latest by the time of a viewing. Certain key figures, such as the energy source, year of construction and efficiency class, must already be stated in property listings. Failing to do so risks not only friction with interested buyers but also a fine, which can run into several thousand euros depending on the violation.
The certificate must be handed over to the buyer, without being asked, at the latest when the contract is signed – a copy is sufficient, with the original staying with the owner. An Energy Performance Certificate is valid for ten years, after which a new one must be issued. So if you haven't had a certificate drawn up for your property in years, it's worth sorting out well ahead of the sale, since getting one issued by an energy consultant can easily take several weeks depending on their workload.
A common misconception: some owners believe the certificate is only needed when renting out a property. That's not correct. It's also mandatory when selling an owner-occupied property, regardless of whether it's a single-family house, a condominium or a multi-family building. Exceptions apply only in a handful of special cases, such as listed heritage buildings or properties with less than 50 square metres of usable floor space.
The Energy Performance Certificate as part of good sales preparation
Anyone planning to sell a property shouldn't treat the Energy Performance Certificate as a tedious box to tick at the end of the process, but should plan for it early on. A current, accurate certificate builds trust with prospective buyers and prevents last-minute delays before the notary appointment. For properties with a good efficiency rating, it's even worth actively highlighting this in the listing, since energy-efficient homes often sell more easily and at more stable prices. You can find out more about what thoughtful marketing looks like on our page about selling property.
For owners who are still unsure which type of certificate suits their property, or how its energy status might affect the achievable price, it's worth talking to someone who understands both sides – the market and the technical details.
At L&B Immobiliya, we guide owners in Berlin and across Germany through the entire sales process, from the initial assessment through to arranging the right Energy Performance Certificate and the final handover at the notary's office. Feel free to get in touch, without obligation, via our contact page – we advise in German, English and Russian.
