Minister for Housing, Local Government and Heritage, James Browne TD, has announced that a simplified Building Energy Rating (BER) scale for non-residential buildings will be introduced on 24 May 2026. This move follows similar changes for residential properties and is a requirement of the European Union's Energy Performance of Buildings Directive (EPBD).

The updated system will replace the current complex rating levels with a streamlined 8-point scale ranging from A to G. Notably, it introduces a new A0 (A-Zero) category, specifically reserved for zero-emission buildings that do not utilise fossil fuels. This new scale will apply to a wide range of structures, including public buildings, hotels, retail units, and office spaces.

The changes are part of a broader EU-wide initiative to standardise energy reporting, allowing for better comparison of building stock across Member States and supporting the reduction of greenhouse gas emissions.

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Minister James Browne TD stated: "A simplified, common scale from A to G will now be used in both residential and non-residential buildings and a new class known as A-Zero ('A0') will be introduced to reflect the very highest performing buildings in terms of energy efficiency. My Department has been working to introduce the A0 rating and to simplify the BER scale in a way that minimises disruption to building owners, while complying with the new EU requirements."

While the rating scale is being simplified, the revised BER certificates will provide more detailed data for owners and prospective tenants.

• New Metrics: Certificates will now include additional information on energy use, climate-related performance, and specific recommendations for improving energy efficiency.

• Global Warming Potential: Metrics will cover lifecycle carbon emissions, helping owners understand the environmental impact of their property.

• Validity of Current Certs: All existing BER certificates remain valid until their original expiry date (up to 10 years from the date of issue).

• Mandatory Requirements: Current certificates continue to be valid for mandatory obligations, such as the sale, rental, or advertisement of a property.

These updates aim to make energy performance information more accessible and transparent, providing a clearer roadmap for the decarbonisation of Ireland's non-residential building sector.