Energy Passport in Luxembourg:
The Complete Guide 2026
The Energy Performance Certificate (EPC) is mandatory for all property sales and rentals in Luxembourg. It rates your property from A to I and directly impacts its sale price: up to +15% for a good class. This guide covers everything: definition, cost, procedures, how to improve your class and available grants in 2026.
What is the energy passport in Luxembourg?
The energy passport — officially called the Energy Performance Certificate (EPC) — is an official document that evaluates a building’s energy performance in Luxembourg. It is Luxembourg’s equivalent of the French DPE or Belgian PEB, but more comprehensive.
This document rates your property on a scale from A (very efficient) to I (very inefficient) across three criteria: primary energy demand (kWh/m²/year), thermal insulation performance, and CO₂ emissions (kg CO₂/m²/year).
The energy passport is issued at building level, not apartment level. In a co-ownership building, all apartments share the same EPC. To improve the class, works must be decided by the co-ownership (except for private equipment like individual heating).
The EPC is produced by a certified expert (architect, consulting engineer or expert approved by the Ministry of Energy). It is valid for 10 years.
When is the energy passport mandatory in Luxembourg?
Luxembourg law requires the EPC in several situations: property sale (mandatory — must be shown from the first viewing), rental (mandatory — must be attached to the lease), new construction (mandatory — « as built » EPC to be submitted within 2 months), and renovation with permit (mandatory — new EPC required after significant works).
Missing EPC during a sale or rental can result in administrative fines. Since 2026, the energy class must appear in all property listings published in Luxembourg.
Energy classes from A to I in Luxembourg
The Luxembourg energy passport uses a 9-class scale, from A (near-passive building) to I (energy sieve). Here is what each class means in practice for a 120 m² home:
| Class | Consumption (kWh/m²/yr) | Est. heating cost (120 m²) | Building type |
|---|---|---|---|
| A | ≤ 45 | €300 – 600/yr | Passive / NZEB — new build |
| B | 46 – 95 | €600 – 1,000/yr | Very low consumption — high-end renovation |
| C | 96 – 150 | €1,000 – 1,500/yr | Low consumption — well renovated |
| D – E | 151 – 300 | €1,500 – 3,000/yr | Average to old unrenovated |
| F – I | > 300 | > €3,000/yr | Energy sieves |
Over 60% of Luxembourg homes are rated E to I. New builds since 2017 are mandatory class A (NZEB/AAA standard). The renovation potential is enormous — and grants are available to support it.
Energy passport cost and how to get one in Luxembourg
| Provider | Price 2026 | Delivery time |
|---|---|---|
| Renov.lu partner experts | €475 (flat rate) | 72 hours |
| Independent consultancies | €500 – €600 | 1 to 3 weeks |
| Architecture firms | €600 – €800 | 2 to 4 weeks |
The process is simple: (1) request online, (2) expert visits your property for 1–2 hours, (3) receive the official certificate within 72 hours. Valid for 10 years.
Get your energy passport for €475 in June 2026
Flat rate, certified experts, 72-hour delivery. The best value on the Luxembourg market.
Request my EPC →How to improve your energy passport class?
Your EPC class is not fixed. A well-planned energy renovation can gain 4 to 6 classes. The recommended roadmap: (1) insulate (roof, walls, floors — gain 2–3 classes), (2) replace windows with triple glazing (+0.5–1 class), (3) install a heat pump (+1–2 classes), (4) add HRV ventilation, (5) install solar panels. Full combination: class F/G → A, with 70–80% bill savings.
What class can you reach? Simulate your renovation potential and eligible grants for free.
Simulate my potential →How the energy passport impacts property prices in Luxembourg
The EPC has become a decisive property price factor in Luxembourg. Market data shows a significant price gap between well-rated and energy-inefficient properties: +15% premium for A/B class, –10 to 15% discount for F/G class, and A/B-rated properties sell twice as fast.
For a €700,000 house rated F, improving to class B can increase its value by €70,000 to €105,000 — often exceeding the net renovation cost after Klimabonus grants. Complete guide: EPC impact on prices.
Grants available to improve your EPC class in 2026
Luxembourg offers cumulative grants in 2026: Klimabonus (up to 62.5% of insulation costs, up to €9,500 for heat pump), Enoprimes (~€1,500), 3% VAT, energy advisory grant (€1,500), and Klimaprêt (reduced rate loan up to €100,000). Main condition: improve your EPC by at least 2 classes.
→ All renovation grants 2026 · Klimabonus guide
Energy passport
Energy renovation
Frequently asked questions about the energy passport in Luxembourg
What is an energy passport in Luxembourg?
The energy passport (Energy Performance Certificate or EPC) is an official mandatory document evaluating a building’s energy performance in Luxembourg. It rates properties from A (very efficient) to I (very inefficient) based on primary energy demand, insulation quality and CO₂ emissions. Produced by a certified expert, valid for 10 years.
How much does an energy passport cost in Luxembourg in 2026?
Prices range from €475 to €800. Renov.lu partner experts offer a flat rate of €475 with 72-hour delivery. Request an EPC.
When is the energy passport mandatory?
The EPC is mandatory for all property sales, rentals, new builds and renovations requiring a permit. It must be shown from the first property viewing and referenced in listings.
Does the energy passport affect property prices?
Yes, significantly. A/B-rated properties sell for 15% more than F/G-rated ones. Energy sieves face a 10–15% discount and take twice as long to sell. EPC impact on prices guide.
How can I improve my energy passport class?
Through energy renovation: insulation, triple glazing, heat pump, HRV ventilation and solar panels. Full combination: class F/G → A, with 70–80% bill savings. Klimabonus covers up to 62.5% of insulation costs.
Get your energy passport now
€475, certified experts, 72-hour delivery. The first step towards understanding your property’s potential.