Directive (EU) 2024/1275, widely referred to as the recast EPBD or EPBD 2024, entered into force on 28 May 2024 following publication in the Official Journal of the European Union on 8 May 2024, according to EUR-Lex. The directive recast and repealed its predecessors, Directive 2010/31/EU and its 2018 amendments, establishing a consolidated legal framework with the central objective of achieving a fully decarbonised EU building stock before 2050. Member States were given until 29 May 2026 to complete transposition into national law, and according to the European Commission Directorate for Energy, failure to meet that deadline exposes Member States to infringement proceedings. For building owners, developers, certifying engineers, and asset managers operating across the EU, the implications of this directive are immediate, multi-layered, and extend well beyond 2026. | The scale of the transposition challenge is illustrated clearly by the situation in Spain, one of the EU's largest building markets. According to BUILD UP, the European Commission platform for energy efficiency in buildings, an analysis of implementation progress in Spain indicated that the country had achieved approximately 60% adaptation around the time of the May 2026 transposition deadline. That figure means a significant portion of the technical and administrative obligations derived from the directive still required specific regulatory development or updating of existing national instruments. In the Spanish context, the directive must be articulated through established frameworks including the Código Técnico de la Edificación, the Reglamento de Instalaciones Térmicas en los Edificios, and the royal decrees governing energy certification. According to MITECO, the Spanish ministry's institutional page on building energy efficiency, some measures in the directive were already aligned with existing Spanish regulation, whilst others, particularly those relating to renovation passports and life-cycle analysis, require additional regulatory development. This pattern of partial alignment is not unique to Spain; it reflects the broader challenge facing Member States that have built up layered national frameworks over successive transpositions of earlier EPBD versions. | One of the most operationally immediate requirements concerns energy performance certificates. According to BUILD UP, from 29 May 2026 certificates must mandatorily use the A-to-G scale and the template model defined in Annex V of the directive. The purpose of this harmonised format is twofold: to enable comparability of real estate assets across the EU, and to provide more actionable information on recommended improvement measures. In Spain, energy performance certificates are currently regulated by Royal Decree 390/2021, which already introduced the A-to-G scale. However, Directive (EU) 2024/1275 adds further content requirements, including information on embodied global warming potential, smart readiness capacity (the Smart Readiness Indicator, or SRI), and integration with the renovation passport. These additions require updates to the inspection, calculation, and registration procedures administered by the autonomous communities, which hold competence for managing certification registries. For asset-intensive building typologies such as hospital and healthcare estates, or large educational campuses, where buildings are frequently heavy energy consumers with complex HVAC systems, the correct modelling of the updated certificate indicators is particularly critical for meeting deadlines and avoiding administrative penalties. | The renovation passport represents one of the most substantive innovations introduced by the EPBD 2024. According to MITECO, the directive requires Member States to establish a renovation passport scheme based on Annex VIII of the directive by 29 May 2026. A renovation passport is a bespoke document describing a staged deep-renovation roadmap for a specific building, with the aim of reaching the highest possible energy efficiency, ideally a nearly zero-energy building (NZEB) standard or better. Unlike a conventional energy performance certificate, which provides a snapshot of a building's current condition, the renovation passport is a structured plan of sequential interventions, each accompanied by estimated energy savings, approximate costs, and a temporal priority. Its technical value lies in enabling phased investment planning, minimising the risk of stranded assets, and maximising alignment with available public funding mechanisms such as the EU Recovery and Resilience Facility. From a methodological standpoint, producing a rigorous renovation passport requires a detailed energy model of the existing building, scenario analysis of improvement options, estimation of embodied and operational carbon emissions, and coordination with the relevant regional certification registries. Digital twin engineering tools allow that baseline model to be built using real building data, enabling comparative simulations across different renovation pathways before any capital commitment is made. | On solar energy integration, Directive (EU) 2024/1275 establishes concrete obligations for new buildings. According to MITECO, in the Spanish implementation guidance for the directive, all new public and non-residential buildings with a useful floor area exceeding 250 square metres must be equipped with solar installations before 31 December 2026, where technically and economically feasible. This obligation is extended progressively to other building categories in subsequent phases. In the Spanish regulatory context, this requirement overlaps with provisions already established in the CTE DB HE document, which in its 2019 revision set minimum solar contribution requirements. The EPBD 2024 raises that threshold and makes it binding within stricter timescales, positioning solar as default infrastructure rather than an optional measure. For projects in the energy generation and distribution sector, the convergence of buildings regulation with energy regulation creates a more complex technical environment requiring coordination across mechanical and electrical installations, structural disciplines, and planning consents. | The regulatory calendar extends well beyond May 2026. According to BUILD UP, the first binding life-cycle assessment (LCA) requirements will begin to apply to large buildings from 2028, extending to all new buildings in 2030. In the context of the EPBD, LCA measures the global warming potential across the entire building life cycle, including construction materials, the operational phase, and end-of-life demolition, expressed in kilograms of CO2 equivalent per square metre per year. This means that projects currently in design for large-footprint buildings must already incorporate LCA methodologies into their technical documentation to be compliant when those requirements come into force. The integration of LCA within BIM models, following information management protocols such as those described in ISO 19650, is the most efficient route to ensuring that documentation remains coherent, traceable, and updatable across the asset's operational life. This is especially relevant for industrial and manufacturing facilities, where buildings combine high technical loading with floor areas that frequently exceed the thresholds triggering the most demanding obligations. Additionally, according to the European Commission Directorate for Energy, Member States are required to submit their final national building renovation plans before 31 December 2026. Those plans must quantify the existing building stock, set decade-by-decade renovation targets, and identify associated financing measures, thereby establishing the priority framework against which national and European funding calls will be aligned. | The cumulative regulatory picture resulting from the EPBD 2024, combined with existing national frameworks such as the CTE, the RITE, and energy audit decrees (for example, Royal Decree 56/2016, which transposes Directive 2012/27/EU on energy efficiency and requires large enterprises to carry out audits every four years), produces a compliance environment of considerable complexity, with multiple active deadlines running simultaneously. Several practical implications follow directly from this picture. Energy performance certificates issued before May 2026 may require revision if they do not conform to the Annex V template format, particularly where those certificates are used in real estate transactions occurring after that date. Building owners with renovation plans should assess whether applying for a renovation passport is preferable to undertaking isolated improvement measures, given that the passport may be a prerequisite for accessing certain public financing lines. New-build projects exceeding 250 square metres in public or non-residential use must assess the technical and economic viability of solar installation from the concept design stage, with adequate documentation of any applicable exceptions. Engineering teams working on large buildings should already be incorporating LCA procedures into their project workflows to be prepared for the 2028 requirements. Energy audits conducted under existing national decrees must be made coherent with the new EPBD 2024 indicators, particularly the global warming potential metric and the Smart Readiness Indicator. | For organisations needing to align existing assets or projects under development with the requirements of Directive (EU) 2024/1275, NOVTRIQ's technical team provides structured compliance assessments covering energy certification, renovation passport preparation, LCA integration, and BIM-based documentation management, tailored to specific building typologies and regulatory timescales across the UK, EU, and UAE.