The energy compliance of a building in Switzerland mobilises four distinct frameworks that nest without fully overlapping: the MoPEC (federal model of prescriptions transposed by the cantons), the CECB (cantonal building energy certificate), the Minergie labels, and the SIA standards. Understanding which one applies to your project, and in what articulation, is a prerequisite to any renovation or valorisation decision. This page organises these frameworks, details the requirements per canton for the CECB, and treats energy compliance under the angle that directly interests decision-makers: its impact on the patrimonial value and the profitability of the asset.
Building energy regulation in Switzerland rests on a four-level architecture that nests: federal (the framework), cantonal (the applicable law), certifications (the assessment and valorisation tools), normative (the calculation methods). Understanding what nests with what is the prerequisite to any renovation or investment decision.
The Confederation sets the objectives ; the cantons transpose them.
The Confederation sets the objectives and the model of prescriptions (MoPEC). Each canton is free to adopt it in full, in part or to go beyond it. In practice, the majority of cantons romands have transposed MoPEC 2014, with local variants on deadlines and on requirements for replacing heating systems. The federal framework is therefore a minimum baseline, not a ceiling.
Each canton enacts its own energy law that transposes and tightens MoPEC.
Each canton enacts its own energy law, which transposes MoPEC and adds specific prescriptions. Requirements on the envelope (heat-loss coefficient Qh, thermal bridges, air-tightness), heating systems, and renewable energies vary from canton to canton. It is the cantonal law that is legally binding, not the federal MoPEC.
One public, mandatory in practice for subsidies ; the other private and voluntary.
The CECB is a public standardised assessment of an existing building's energy performance (classes A to G). Minergie is a private label that certifies new or renovated buildings according to performance standards more demanding than baseline MoPEC. The two coexist and complement each other: the CECB documents the existing, Minergie targets voluntary high performance.
The calculation methods that MoPEC, CECB and Minergie reference.
The SIA standards (notably SIA 380/1, SIA 329, SIA 331) provide the calculation methods and reference technical requirements. They serve as the basis for MoPEC/Minergie compliance verification and for building permit checks. Without these standards, no higher-level framework is calculable.
The MoPEC (Model of Energy Prescriptions of the Cantons) is a framework document drafted by the Conference of Cantonal Energy Directors (EnDK). It defines minimum requirements that cantons are invited to integrate in their own energy law. The current version is MoPEC 2014 ; a revision (MoPEC 2025+) is under development.
FIG. 02 · MoPEC Cantons romands, MoPEC 2014 transposition status. Verify with the cantonal energy service before regulatory use.
Source EnDK · 2024
1. New construction: requirements on the envelope (heat losses Qh,lim per SIA 380/1), limits on fossil-fuel systems, mandatory share of renewable energy. The majority of cantons romands have applied these requirements since 2015-2017. 2. Significant renovation: when replacing or renovating envelope elements (roof, facade, wall) above a surface threshold (variable by canton), U-max values are imposed per element. These values are defined in the cantonal annexes and must be verified canton by canton. 3. Replacement of fossil heat generators (HGWR): module 3 of MoPEC 2014 imposes, when replacing an oil or gas boiler, the execution of envelope improvement measures up to a standardised level. Several cantons romands have tightened this requirement: partial or total ban on installing new fossil boilers from precise dates onwards.
| Attribut | Canton | MoPEC 2014 transposition | HGWR in force |
|---|---|---|---|
| Vaud | Yes (RCEn 2016) | Yes | |
| Fribourg | Yes (LCEn 2017) | Yes | |
| Geneva | Yes (LDTR + RCI) | Yes (LGFCE) | |
| Neuchâtel | Yes (LCEn 2016) | Yes | |
| Valais | Partial (in progress) | Partial | |
| Jura | Yes (LACE 2018) | Yes |
The CECB certificate (Cantonal Building Energy Certificate) is a standardised document that assesses the energy performance of an existing building according to a scale of classes A to G. It covers two indicators: heat demand for heating (kWh/m²·year) and CO₂ emissions of the heating system (kg CO₂/m²·year). The CECB Plus adds a costed advisory report, often mandatory for subsidies.
Method defined by SuisseEnergie and harmonised between participating cantons. The assessment is performed by a certified expert. Indicators: heat demand for heating (kWh/m²·year, reflects the quality of the envelope) and CO₂ emissions of the heating system (kg CO₂/m²·year, reflects the energy source). The CECB Plus is an extended version that adds a costed advisory report: analysis of improvement potentials with quantified measures (investment, energy savings, CO₂ reduction, payback period). The CECB Plus is mandatory in several cantons to obtain renovation subsidies. See the Avenergy Suisse explanatory video at the foot of this plate.
FIG. 03 · CECB CECB scale and Minergie articulation. MoPEC sets the regulatory baseline, Minergie is voluntary on top.
Source SuisseÉnergie
RCEn 2016, updated 2021. SEVEN manages Programme Bâtiments subsidies.
CECB Plus recommended to access subsidies under the Programme Bâtiments coordinated by SuisseEnergie. Owners considering replacement of a fossil boiler or undertaking insulation works are oriented towards CECB Plus as a preliminary diagnostic step.
LCEn 2017. Cantonal Programme Bâtiments managed by SEnEc.
Subsidises envelope insulation measures and replacement of fossil heating systems. CECB Plus is required for subsidy applications above a certain threshold. Rates vary by type of measure and target performance level.
Specific IDC tool in parallel. LGFCE applicable.
The IDC (Heat Consumption Index) measures real heat consumption per building, published annually in the cantonal Register. For buildings exceeding LGFCE thresholds, works are mandatory according to a cantonal calendar. The CECB complements as an envelope diagnostic tool.
LCEn 2016, faithful transposition of MoPEC 2014.
Neuchâtel Programme Bâtiments coordinated by SENE (Service de l'énergie). Subsidises insulation measures, replacement of fossil boilers, and solar thermal installations. CECB Plus is recommended for global envelope renovations.
Legislative revision under way, partial alignment with MoPEC 2014.
SENE VS manages Programme Bâtiments subsidies. Requirements on the envelope in renovation and replacement of fossil generators are being harmonised with the other cantons romands. CECB is available with certified experts active in the canton.
LACE 2018, energy section aligned with MoPEC 2014.
Jura Programme Bâtiments subsidies coordinated by Service de l'environnement (ENV). CECB Plus is the reference tool for subsidised renovations. The energy section of LACE integrates planning, construction and environment in a coherent framework.
Swiss private label created in 1998 by the Minergie Association. It certifies buildings that reach an energy performance level above the cantonal MoPEC, according to standardised criteria verified by accredited certification bodies. Four variants coexist, from the most accessible to the most demanding.
The entry threshold. Final-energy ceiling + mechanical ventilation with heat recovery.
Requirement on final-energy consumption for heating, ventilation and domestic hot water, with a kWh/m²·year ceiling depending on building type and climatic zone. Mechanical ventilation with heat recovery mandatory. Applicable to new construction and renovation.
Swiss passive house. Air-tightness n50 ≤ 0.6 h⁻¹ mandatory.
Final-energy thresholds approximately twice as low as the Minergie standard. Corresponds to the "passive house" class (Passivhaus) under Swiss parameters. Demands a very air-tight envelope (mandatory air infiltration test, n50 ≤ 0.6 h⁻¹). Applicable to new construction ; possible in complete renovation.
Indoor quality + materials extension. Performance + health criteria.
Extension of the Standard or the P with additional requirements on indoor quality (acoustics, daylight, indoor pollutants) and materials (environmental impact, harmful substances). Does not modify the energy requirements: combines performance with health criteria. Relevant on signature office and high-end residential.
Net positive energy building. On-site renewable production covers the needs.
The annual on-site renewable energy production (BIPV, solar thermal) must cover the entire needs. This variant imposes the highest requirement level of the Minergie catalogue, applicable mainly to new construction. Convergence with carbon strategy and patrimonial decarbonisation.
Four SIA standards structure envelope energy compliance in Switzerland. Two are calculation methods (380/1, 331), one is a technical product standard (329), one is contractual (118). All are referenced by MoPEC, CECB and Minergie.
Calculation method for the heat-loss coefficient Qh. Reference for MoPEC + Minergie.
The reference standard for calculating heat demand of a building in Switzerland. It defines the calculation method for the envelope heat-loss coefficient Qh (in kWh/m²·year), the U-max values per construction element, and the requirements on thermal bridges. It serves as the verification basis for MoPEC and Minergie. The SIA 380/1:2016 revision, currently being updated towards alignment with the revised EPBD directive, introduces tightened requirements on air-tightness.
Technical reference standard for design and justification.
Technical reference standard for the design and justification of curtain wall facades in Switzerland. It covers performance criteria (thermal, acoustic, weather-tightness, safety) and verification methods. SIA 380/1 thermal compliance must be verified consistently with SIA 329. Mandatory framework on office and high-end residential.
Whole-window Uw method + acoustic performance.
Reference standard for Uw values of joinery, the calculation method for whole-window Uw (glazing + frame + joint thermal bridges), and acoustic performance criteria. Applicable to all external joinery, new or renovated.
Warranties, handover deadlines, responsibilities on delivered performance.
Reference contractual standard in Switzerland. It frames warranties, handover deadlines, responsibilities, including performance warranties on the envelope. Relevant for framing the responsibility of the architect, the engineering office and the contractor on delivered energy performance. Articulates directly with forensic expertise missions in case of failure.
Energy compliance is not only a regulatory constraint. For an owner or institutional investor, it constitutes an asset valorisation lever on four levels, from direct return (subsidies) to strategic (sell vs renovate trade-off).
Programme Bâtiments: 20 to 40 % of works cost on certain measures.
The Programme Bâtiments coordinated by SuisseEnergie and the cantons subsidises envelope insulation works (roof, facade, floors) and replacement of fossil generators. These subsidies can represent 20 to 40 % of the cost of works on certain measures. They generally require a prior CECB Plus, which documents eligible measures and expected savings.
F or G CECB = regulatory liability at risk of depreciation.
Buildings classified F or G under CECB are exposed to mandatory works in cantons where MoPEC 3 (heat generator replacement) is in force. An asset that is not upgraded in time becomes a regulatory liability, with risk of depreciation in transactions or refinancings. The risk materialises gradually as buyers and banks tighten their ESG analysis grids.
CECB A/B or Minergie = letting argument on high-end office markets.
Institutional tenants (listed companies, public administrations) progressively integrate ESG criteria in their letting decisions. A CECB A or B certificate, or a Minergie certification, becomes a letting argument on high-end office markets, particularly in Geneva, Lausanne, Bern and Zurich. The letting premium and lease duration translate directly into patrimonial valorisation (DCF).
CECB Plus = costed analysis of renovation impact on market value.
For an owner considering a sale, the CECB Plus provides a costed analysis of the impact of a renovation on the estimated market value. This trade-off, renovate before selling or adjust the sale price, is a patrimonial calculation we structure in our support. The lever is strategic, it decides capital allocation (renovation CAPEX vs sale at discount).
We treat energy compliance as a question of asset economics, not as an administrative question. CECB, MoPEC and Minergie are tools serving a patrimonial strategy, not ends in themselves. The typical deliverable is a dossier usable in investment committee, not a technical note reserved for specialists.
Three actor profiles call upon our energy compliance expertise, for different reasons. Each profile mobilises a distinct expectation on the deliverable and on the engagement mode.
Objective: protection and valorisation of the asset.
The objective is the protection and valorisation of the asset. We analyse the regulatory exposure of the portfolio (estimated CECB classes, HGWR risk, cantonal deadlines), establish a compliance plan prioritised by the ROI of each measure, and support obtaining subsidies. Target deliverable: dossier usable in investment committee, costed scenarios, compliance schedule.
Compliance as project constraint, integrated from concept stage.
MoPEC/Minergie compliance is a project constraint that envelope design must integrate from concept stage. We work as technical support to verify the thermal performance of proposed solutions (SIA 380/1 calculations, thermal bridges, air-tightness) and to anticipate blocking points at building permit stage. Preferred mode: subcontracting MOE, technical calibration in SD/DD.
Make technical trade-offs understandable for non-specialist owners.
Co-ownership renovation decisions involve making technical and regulatory constraints understandable to non-specialist owners. We bring a clear reading of the CECB diagnostic, a costed presentation of prioritised works, and support in assembling subsidy applications. Presence at general assembly possible if needed.
Our intervention is structured in four sequential steps, adapted to the size and complexity of the project. Each step produces a contractual deliverable that becomes a reference for the next phase.
Analysis of the current state of envelope and systems, estimated CECB classes, identification of MoPEC non-conformities, evaluation of eligibility for targeted Minergie labels. Deliverables: diagnostic report, regulatory risk map, first solution orientations.
Definition of measures required to reach regulatory and valorisation objectives. Each scenario is costed, CAPEX, energy savings, CO₂ reduction, mobilisable subsidies, payback. The trade-off between scenarios is documented to facilitate committee decision.
Assembly of CECB Plus dossiers, coordination with cantonal energy services (SEVEN, SEnEc, OCAN, SENE, SENE VS, ENV depending on the canton), follow-up of deadlines and conditions. The administrative complexity of cantonal programmes is real, we handle it for you.
For projects where we also assume partial or full envelope MOE, we drive execution of works through to final compliance verification and obtaining of the targeted label. Possible articulation with envelope commissioning missions.
Six canonical entries to articulate energy compliance with adjacent missions of the studio.
Overview of the envelope's vertical specialties.
Preliminary read that frames the compliance trajectory.
Operational compliance retrofit project.
Independent verification of delivered performance.
Parametric LCA, EU Taxonomy and MoPEC carbon articulation.
Entry point for owners and real-estate funds concerned by compliance.