Introduction: The Building Sector’s Carbon Blind Spot
of global GHG emissions come from embodied carbon in buildings — the carbon embedded in construction materials, transport, and on-site processes — a share that the EPBD recast now requires EU member states to address.
For over two decades, EU building energy policy has focused almost exclusively on operational energy — the energy consumed for heating, cooling, lighting, and ventilation during a building’s use phase. The Energy Performance of Buildings Directive (EPBD) drove the roll-out of energy performance certificates, nearly-zero-energy building (nZEB) standards, and national renovation strategies that have meaningfully reduced operational carbon across the EU building stock.
But as operational efficiency improves, a different carbon challenge comes into sharper focus: embodied carbon — the greenhouse gas emissions associated with extracting raw materials, manufacturing construction products, transporting them to site, constructing the building, maintaining and replacing components, and eventually demolishing and disposing of the structure.
The recast EPBD, formally Directive (EU) 2024/1275 published in April 2024, marks a decisive shift. For the first time, EU building energy legislation includes provisions for whole-life carbon — combining both operational and embodied emissions — and sets the stage for member states to calculate and, eventually, limit the total lifecycle carbon impact of new buildings.
What the EPBD Recast Actually Requires
Whole-Life Global Warming Potential (WL-GWP)
The headline provision is the requirement for member states to ensure that the whole-life Global Warming Potential (WL-GWP) of new buildings is calculated and disclosed in energy performance certificates (EPCs) for new buildings above a specified size threshold. The WL-GWP metric aggregates emissions across all life-cycle stages — from material production (modules A1–A3) through construction, use, and end of life (modules C1–C4), and potentially including benefits beyond the system boundary (module D).
Mandatory calculation, not mandatory limits — yet: The EPBD recast requires member states to implement WL-GWP calculation and disclosure for new buildings. It does not, at this stage, mandate maximum WL-GWP thresholds at EU level. However, it empowers the Commission to develop a common EU framework methodology and paves the way for member states — and eventually the EU — to set binding limits in the future.
Transposition Deadline: May 2026
Member states must transpose the EPBD recast into national law by 29 May 2026. This means adopting national legislation, updating building codes, and establishing the methodological and institutional framework for WL-GWP calculation. Some member states — notably France, the Netherlands, Denmark, and Sweden — already have national WL-GWP requirements in place. For others, the EPBD recast will require building entirely new regulatory infrastructure.
| EPBD recast milestone | Date | Implication |
|---|---|---|
| Publication in OJ | 8 May 2024 | Legal text finalised |
| Entry into force | 28 May 2024 | 20 days after OJ publication |
| Transposition deadline | 29 May 2026 | Member states must adopt national implementing legislation |
| WL-GWP calculation for new buildings >1,000 m² | From 2028 (indicative) | Subject to national transposition timelines |
| WL-GWP calculation for all new buildings | From 2030 (indicative) | Phased roll-out per member state |
How WL-GWP Calculation Works
The Building Life-Cycle Framework
WL-GWP calculation follows the life-cycle stages defined in EN 15978 (assessment of environmental performance of buildings) and EN 15804+A2 (construction product EPDs). The building-level assessment aggregates the product-level data from individual EPDs across all materials and components used in the building.
| Life-cycle stage | Modules | What is covered |
|---|---|---|
| Product stage | A1–A3 | Raw materials, transport to factory, manufacturing |
| Construction process | A4–A5 | Transport to site, construction/installation |
| Use stage | B1–B7 | Use, maintenance, repair, replacement, refurbishment, operational energy and water |
| End of life | C1–C4 | Deconstruction, transport, waste processing, disposal |
| Beyond system boundary | D | Reuse, recovery, recycling potential (net benefits/loads) |
From Product EPDs to Building-Level WL-GWP
The critical data input for WL-GWP calculation is the product-level GWP data from Environmental Product Declarations. An EPD provides the GWP values (in kg CO₂ eq. per declared/functional unit) for each life-cycle module. The building-level assessment aggregates these values across all materials, weighted by quantities, and adds building-specific data for transport distances, construction processes, maintenance schedules, and end-of-life scenarios.
This creates a direct demand chain: building regulations require WL-GWP calculations, WL-GWP calculations require product-level LCA data, and the most credible source of product-level LCA data is a third-party-verified EPD compliant with EN 15804+A2.
The Role of Generic vs. Producer-Specific Data
WL-GWP calculation tools typically allow two types of data inputs:
- Generic data — from LCA databases (e.g., Ökobaudat, INIES, ecoinvent) representing industry-average products. These are conservative estimates that often overstate the environmental impact of specific products.
- Producer-specific data — from individual product EPDs, reflecting the actual manufacturing process, energy sources, and supply chain of a specific manufacturer.
Competitive advantage: In markets where WL-GWP calculations drive material selection, products with producer-specific EPDs consistently outperform generic data assumptions. A manufacturer with a verified EPD showing lower-than-average GWP gains a measurable competitive advantage in building projects that calculate WL-GWP — which will be all new buildings once the EPBD transposition takes effect.
Member States Leading the Way
France: RE2020
France’s RE2020 regulation, in effect since January 2022, is the most ambitious national WL-GWP framework in Europe. It sets mandatory maximum carbon thresholds for new buildings, expressed as kg CO₂ eq. per m² over a 50-year reference study period. The thresholds decrease in phases:
- 2022: Initial thresholds (relatively permissive, establishing baseline reporting)
- 2025: Tightened thresholds requiring meaningful material optimisation
- 2028: Further tightening, pushing toward low-carbon materials and design
- 2031: Ambitious targets that will require systemic changes in material selection and construction methods
RE2020 has already transformed the French construction materials market. EPD demand from French manufacturers has surged, and specifiers routinely compare products based on their A1–A3 carbon footprints.
Netherlands: MPG (Environmental Performance of Buildings)
The Netherlands has operated a mandatory environmental performance calculation (MPG — Milieuprestatie Gebouwen) for new residential and office buildings since 2013. The MPG uses a shadow-cost methodology that aggregates multiple environmental indicators into a single score. Since 2018, the maximum MPG score has been progressively tightened, and the government plans further reductions aligned with the EPBD recast.
Denmark, Sweden, and Finland
Denmark introduced mandatory whole-life carbon limits for new buildings above 1,000 m² from 2023, with a planned extension to all new buildings. Sweden requires climate declarations for new buildings since January 2022 (currently covering modules A1–A5). Finland has proposed WL-GWP requirements as part of its updated building code.
| Country | Framework | Mandatory since | Scope | Limits? |
|---|---|---|---|---|
| France | RE2020 | 2022 | All new buildings | Yes — phased tightening |
| Netherlands | MPG | 2013 | Residential + office | Yes — shadow cost limit |
| Denmark | BR18 / CO₂ limit | 2023 | >1,000 m² | Yes — kg CO₂/m²/year |
| Sweden | Climate Declaration | 2022 | New buildings | Calculation only (limits planned) |
| Finland | Building Code update | Proposed | New buildings | Proposed |
Why This Matters for Construction Product Manufacturers
EPD Demand Will Accelerate
The EPBD recast will create a pan-European demand wave for product-level environmental data. When every new building in the EU must calculate its WL-GWP, architects and engineers will need GWP data for every significant material in the building. Products without EPDs will either be assigned conservative generic data (disadvantaging the manufacturer) or excluded from specification entirely.
Product-Level Carbon Becomes a Differentiator
In a WL-GWP-constrained market, the carbon footprint of individual products becomes a competitive parameter alongside price, performance, and availability. Manufacturers who can demonstrate below-average GWP through verified EPDs will win specifications in carbon-conscious projects. Manufacturers without EPDs — or with above-average carbon footprints — will face increasing market pressure.
The data hierarchy: Building-level WL-GWP tools apply a data quality hierarchy. Producer-specific EPDs are ranked highest, followed by industry-average EPDs, then generic database values. Products with producer-specific EPDs receive the most accurate (and often most favourable) representation in whole-building calculations. Products relying on generic data are typically penalised with safety factors or conservative assumptions.
Cross-Border Market Access
As all 27 EU member states transpose the EPBD recast, WL-GWP calculation will become a baseline requirement across the single market. Manufacturers exporting construction products to multiple EU countries will need EPDs that are mutually recognised across national WL-GWP frameworks. EPDs published under EN 15804+A2 and registered with programme operators that participate in ECO Platform’s mutual recognition scheme (including EPD Polska) meet this requirement.
Practical Steps for Manufacturers
- Assess your EPD coverage — do your highest-volume and most carbon-intensive products have current, EN 15804+A2-compliant EPDs? If not, prioritise these for LCA studies.
- Use producer-specific data — generic industry-average EPDs are a starting point, but producer-specific EPDs based on your actual manufacturing data provide better representation and competitive advantage.
- Track national transposition — monitor how your key export markets are implementing the EPBD recast. Some countries will move faster than others, and early movers may adopt stricter WL-GWP thresholds.
- Engage with building-level assessment tools — ensure your EPD data is available in the national and commercial WL-GWP calculation tools used by architects and engineers in your markets (e.g., One Click LCA, eLCA, Elodie).
- Consider product optimisation — if your products’ GWP is above the industry average, explore manufacturing changes (alternative fuels, increased recycled content, renewable energy) that could reduce your carbon footprint and strengthen your market position.
The Bottom Line
The EPBD recast transforms whole-life carbon from a niche green-building metric into a mainstream regulatory requirement across the EU. For construction-product manufacturers, this means that EPDs are no longer a sustainability marketing tool — they are the data infrastructure for regulatory compliance.
The transposition deadline of May 2026 is imminent. While the full implementation of WL-GWP calculation requirements will be phased over several years, the direction is clear and irreversible. Manufacturers who invest in comprehensive EPD programmes now will be positioned to compete in the whole-life-carbon-constrained market that is taking shape across Europe.
Information current as of publication date. National transposition timelines and WL-GWP thresholds may vary by member state.