Summary
Details
- Austria
Mandatory for:
Developers, building owners, designers and construction actors involved in new buildings or major renovations subject to provincial Austrian building energy requirements.
Sellers, landlords and lessors of covered buildings or building units where an energy performance certificate must be provided.
Certain small, temporary, low-energy-demand or special-use buildings may be exempt depending on provincial rules and the applicable OIB or energy certificate provisions.
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What's Required
Building owners, developers, designers, landlords and sellers may need to:
Meet minimum energy performance requirements for new buildings.
Meet energy performance requirements for major renovations.
Apply OIB Guideline 6 requirements where adopted into provincial building law.
Prepare energy performance calculations using the required Austrian methodology.
Obtain an energy performance certificate where required.
Provide an energy certificate when selling, renting or leasing covered buildings.
Comply with thermal insulation, heating, cooling, primary energy and system-efficiency requirements.
Consider nearly zero-energy building requirements and future EPBD-related updates.
Maintain documentation for building approval, sale, rental or renovation processes.
Comply with province-specific building authority procedures.
Important Deadlines
Compliance is required before building permits, occupancy approvals, sale transactions or rental processes where energy performance rules apply.
OIB Guideline 6 has been updated repeatedly, including the 2023 and 2025 versions.
Building energy rules are expected to evolve further under the revised EU Energy Performance of Buildings Directive, published in the Official Journal of the EU on May 8, 2024.
Energy performance certificate timing depends on the transaction, building type and provincial rules.
Current Status
Austria Building Energy Rules are currently in force.
The framework is legally binding where OIB Guideline 6 and related standards are adopted into provincial building law. Austria’s system is harmonised nationally through OIB guidance, but implementation remains tied to the nine provinces.
The rules are not voluntary green-building standards. They affect whether a building project can receive approval, whether a building can be sold or rented without required documentation, and whether major renovations comply with energy-efficiency law.
The framework is also being updated in response to the revised EU Energy Performance of Buildings Directive, which will increase focus on minimum energy performance standards, renovation planning and building decarbonisation.
Penalties for Non-Compliance
Statutory fines
Non-compliance may lead to administrative, legal or commercial consequences.
Potential consequences may include:
Refusal or delay of building permits.
Refusal of occupancy or completion approval.
Orders to correct non-compliant building works.
Requirement to update or obtain an energy performance certificate.
Administrative penalties under provincial building law.
Transaction delays in sale or rental processes.
Civil liability or buyer or tenant claims where required certificate information is missing or misleading.
Reputational risk for developers and landlords.
Because building energy requirements are linked to permitting, sale and rental processes, the most immediate consequence is often the inability to complete a project or transaction until compliance is resolved.
Examples of Known Violations
As of June 2026, we were not able to find a centralized Austrian public database of penalties imposed specifically for building energy rule violations.
Enforcement is usually handled by provincial or local building authorities and may involve missing certificates, incorrect documentation, non-compliant building design, or failure to meet energy performance requirements during new construction or major renovation.
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