Energy certificate for an Austrian apartment building sale from July 2026: listing, disclosure and contract effects

Amended rules under Austria's Energy Certificate Submission Act 2012 apply to new property listings and contracts from 1 July 2026. For an apartment building, the issue goes beyond two figures in an advertisement. The certificate must match the property, reach the buyer before the buyer's contractual declaration and be reflected accurately in the transaction documents.

Sellers should therefore align the energy certificate with the building file, actual use and proposed contract schedules before marketing starts. Buyers should check whether it covers the offered building and whether later alterations or technical changes are documented coherently.

What a listing must state from 1 July 2026

For advertisements published from 1 July 2026, section 3 EAVG 2012 requires the heating energy demand and final energy demand together with the overall energy performance class. The duty applies to the seller and the instructed estate agent.

The transitional rule in section 10a EAVG 2012 matters where existing records are used. A certificate issued under the previous European framework remains valid for ten years from issue. A listing based on such a certificate may continue to state heating energy demand and the overall energy efficiency factor. The same applies while there is no legal basis for issuing a certificate with the newly required data.

Before the first online advertisement, the seller should identify the certificate generation and the figures that may lawfully be transferred from it. Merely saying that a certificate will follow does not replace the statutory listing information. Our glossary entry on the energy performance certificate gives a short explanation of the document.

Disclosure before the buyer is bound and delivery afterwards

Under section 4 EAVG 2012, the seller must show the buyer a certificate that is no more than ten years old in good time before the buyer makes the contractual declaration. The relevant moment is not necessarily the later signing of the purchase agreement. A binding purchase offer can already be the decisive declaration.

The certificate must be handed over within 14 days after the contract is concluded. If requested, it must be shown and handed over on paper. The transaction file should therefore record which version the buyer received, when it was provided and whether a paper copy was requested.

A reliable sequence consists of an approved final certificate, provable disclosure before commitment, a clearly identified contract schedule and confirmed delivery after completion. This avoids later disputes about whether the data room contained only an incomplete draft.

Compare the certificate with the building and data room

For an apartment building, checking only the issue date and energy class is insufficient. The address, relevant part of the building, floor area and technical assumptions must fit the sale asset. Later attic conversions, merged units or a changed heating system may require a technical update.

The article on reviewing the apartment building file explains how to assess approved use and later alterations. Documents on photovoltaics and heat pumps in a rented building can also be relevant to the technical history. The energy certificate does not replace those records.

Sellers should disclose discrepancies instead of turning the class into an excessive marketing promise. Buyers should not copy calculated figures directly into an income forecast. Building operation, user behaviour and actual consumption data differ from calculated energy indicators.

Separate statutory contract effects from negotiated guarantees

If the certificate is disclosed on time, its energy indicators are deemed an agreed characteristic under section 922(1) of the Austrian Civil Code, subject to unavoidable calculation ranges. Section 6 EAVG 2012 also gives the buyer or tenant a direct claim against the certificate issuer for its accuracy. This statutory position does not remove the need to review the purchase agreement.

Section 8 EAVG 2012 renders ineffective agreements that exclude or restrict central duties and legal consequences under the Act. A broad clause stating that the certificate has no relevance is therefore not reliable protection. The agreement can and should identify the document, its reference object and known building changes precisely.

The broader preparation of the data room, disclosure and guarantees for an apartment building sale should expressly cover the certificate. It should be neither an isolated attachment nor a general guarantee of future energy costs.

Consequences of missing disclosure or delivery

If the certificate is not shown before the contractual declaration, section 7(1) EAVG 2012 treats at least an energy performance appropriate to the building's age and type as agreed. If the certificate is not delivered after the contract despite a request, the buyer may enforce delivery in court or obtain a certificate independently. The buyer may seek reimbursement of reasonable costs within three years after the contract.

Section 9 EAVG 2012 also provides for administrative fines of up to EUR 1,450. It covers missing figures in a listing and breaches of the timely disclosure or subsequent delivery duties. The administrative fine is separate from possible civil claims.

A missing certificate should therefore not be addressed only by a standard clause in the draft contract. An early document review should assign responsibility for preparation, any update, listing figures and evidence of delivery.

Specific issues for mixed use and older apartment buildings

For a sale of the whole apartment building, the certificate for the building is generally relevant. Where only one unit is sold, section 4(2) EAVG 2012 allows a certificate for that unit, a comparable unit in the same building or the whole building. The basis used must be clear to the buyer.

The exceptions in section 5 EAVG 2012 are narrow. The age of an apartment building alone does not remove the duties. Poor condition is not automatically enough either. The exception for objectively demolition ready buildings requires, among other things, a corresponding statement in the listing and a contractual assumption that the buyer will demolish the building within three years.

For mixed residential and commercial use, the sale records should explain which part of the building the indicators cover. If the energy certificate, floor area schedules and use description do not align, the discrepancy should be resolved before marketing.

Practical checklist for marketing and completion

Before publication, check the issue date, reference object, indicators and overall energy performance class. Then compare the certificate with the building file, floor area schedules and technical changes. Only approved figures should enter the agency instruction and listing. The apartment building sale topic page brings together further transaction points.

Before a binding offer, the buyer needs provable disclosure. The purchase agreement should allocate the certificate, known discrepancies, any update obligation and delivery clearly. After conclusion, the 14 day period should be secured operationally. The apartment building sale checklist supports the wider document review.

Legal and technical review work together. The certificate issuer assesses energy indicators. Legal review addresses timing, disclosure, contract effects and warranty risk.