Accredited Energy Assessor in the Walloon Region · CERTIF-P3-02176

EPC certificate Wallonia

Fast, reliable and compliant

An EPC certificate is mandatory in Wallonia as soon as a property is advertised for sale or rent. It must be provided to the buyer or tenant before signing. Certinergie visits your property, enters the data into the official PACE software and sends you your certificate within 48 hours. Valid for 10 years, with prices starting from €165 including VAT.

Mandatory on-site visit
Official PACE software
Valid for 10 years
New 2026 Format

Order my EPC See pricing

Updated on 18 October 2026 · Sources: SPW Énergie, wallonie.be · Trusted by notaries and real estate agencies

In Wallonia — get your energy performance certificate with Certinergie, Belgium’s leading certification provider.

What changes in 2026

Since 1 September

New EPC certificate with a renovation roadmap towards an A rating and indicative costs. Learn more

Since 1 October

Rénopack and Rénoprêt replace the housing renovation grants. A housing energy audit is mandatory. View financial support

Since 1 January

Oil- and coal-fired boilers are prohibited in new buildings.

From 2028 (proposed)

Buyers would have 5 years to achieve at least an energy rating of D. View the timetable

When is an EPC certificate required?

The EPC certificate must be available as soon as the property is advertised and provided to the buyer or tenant.

Property sale
All forms of sale

Standard sale
Sale with retained usufruct
Sale of usufruct rights
Sale of an undivided share
Public auction (voluntary or compulsory)

Exceptions : building purchased for demolition (demolition permit attached to the agreement), gifts and transfers.

Rental
Every new tenancy agreement

Primary residence tenancy
Lifetime tenancy
Property leasing

Types of buildings concerned

Single-family house

Apartment

Apartment building

Student accommodation

Multi-family house

Common areas (partial EPC report)

Mixed-use building (residential use)

Chalet / holiday home

Building requiring renovation

Building without an existing heating system

Uninhabitable / unfit-for-habitation building

Building in breach of planning regulations

Mandatory information in advertisements

The energy rating must appear in advertisements for the sale or rental of a property. Depending on the medium, the unique EPC certificate code and specific energy consumption (kWh/m²/year) must also be displayed. The mandatory information varies by advert type: consult the official table from the Walloon Region.

Tip: order your EPC certificate before listing your property online to avoid delaying the advertisement.

Legal exemptions (under the Decree)

Places of worship and moral assistance

Where EPC requirements are incompatible with their use or protection.

Listed buildings / heritage

Included in the heritage inventory where EPC requirements would affect their character or appearance.

Industrial units, workshops and agricultural buildings

Non-residential buildings with low energy consumption.

Temporary structures

Intended period of use ≤ 2 years.

New buildings < 50 m²

Exemption from EPC requirements for a new building with a total usable floor area under 50 m². An existing home being sold or rented still requires an EPC certificate.

Agricultural units covered by an agreement

Businesses party to a sectoral environmental agreement (Environmental Code, Article D.82 et seq.).

Structures not considered an “EPC unit”

Caravan

Not anchored to the ground

Marquee / tent

Temporary structure

Houseboat

Floating home

Ruins / severely deteriorated building

Regional approval on a case-by-case basis

Closed-shell building

Unfinished building

New 2026 format

What does an EPC certificate from Wallonia contain since September 2026?

Since 1 September 2026, the Walloon EPC certificate has included more than just an energy rating: it also provides an action plan to improve your home. The calculation method remains unchanged, so the same property receives the same rating before and after this date.

Walloon EPC scale (Espec in kWh/m²/year)

Passive

A++< 0

A+0 – 45

A45 – 85

B85 – 170

C170 – 255

D255 – 340

E340 – 425

F425 – 510

G> 510

Energy-intensive

Energy rating A++ to G

The official rating allows Walloon properties to be compared with one another. It also determines eligibility for regional support schemes.

Energy consumption

Expressed in primary energy and calculated under standardised conditions.

kWh/m²/year: specific energy consumption per m² of heated floor area
kWh/year: theoretical annual energy consumption
Conditions: 18°C, standard climate, standard occupancy

Building envelope

The surfaces separating the building from outside or unheated spaces.

Roof: insulation type and thickness
Walls: construction and U-value
Windows: frames and glazing
Floor: insulation above a cellar or on the ground

Technical systems

Heating: type, efficiency, controls
Domestic hot water
Ventilation: system A, B, C or D
Renewables: heat pumps, solar energy, biomass, cogeneration

Specific indicators

Heating and hot-water efficiency and the completeness of the ventilation system, expressed as a percentage of overall primary energy efficiency.

New

Renovation roadmap towards an A rating

Recommended improvements are prioritised (roof, walls, floors, windows, ventilation, heating, hot water), with the target energy rating shown after each stage.

New

Indicative budget

An indicative price range excluding VAT for each stage to help plan your work. It is neither a quotation nor a personalised renovation project.

No cost estimate is provided for apartments or properties connected to a shared installation: some work depends on the co-ownership arrangements

New

CO₂ and renewable energy

The certificate shows CO₂ emissions and the share of renewable energy generated on site. For properties with photovoltaic panels, it displays two ratings: with and without the panels.

To better understand what this new format reveals, read our analysis of 500 new Walloon EPC certificates.

EPC certificate or housing energy audit?

	EPC certificate	Housing energy audit
Required for	Sale and rental	Rénopack and Rénoprêt support schemes
Recommendations	Roadmap automatically generated by the software	Personalised renovation plan prepared by an auditor
Purpose	Comparing properties, informing buyers, providing initial guidance	Planning a project and applying for support

Want to get the most out of your certificate?

With PEB Boost, an expert energy assessor reviews your EPC with you by video call: missing supporting documents, quick improvements and the order of works based on your project. Discover PEB Boost

Official document decoded

Understand your Walloon EPC certificate

Every zone of the official certificate contains essential information. Discover how to read and interpret this document to better value your property.

Official Walloon Region document

The 10 key zones of the certificate

1. Building Type

The title indicates whether the certificate pertains to an existing or new residential building.

2. Number and Validity

The certificate number and its validity period: all certificates are recorded in the central database managed by the Wallonia Public Service.

3. Property Information

Contact information, property type, and an exterior photo of the building.

4. 5 specific indicators

These five technical indicators provide a detailed assessment of the various components of your home’s energy performance. Each indicator is rated on a qualitative scale that helps you identify strengths and priority areas for improvement.

5. Authorized Certifier

The contact information for the authorized certifier (existing building) or the EPC officer (new building). Their signature is required and ensures compliance with a specific procedure.

6. Legal Requirements

A summary of the rules regarding the requirement to provide an EPC certificate:

Mandatory for sales and rentals
Must be available as soon as the property is listed for sale or rent
Key performance indicators must be included in all advertising
Must be provided to the prospective buyer or tenant before signing

7. Specific energy consumption and energy rating

The specific annual primary energy consumption per square meter. This is calculated by dividing the total theoretical energy consumption by the heated floor area. This value is represented by an energy rating.

8. Total Energy Consumption

The total theoretical energy consumption of the dwelling, expressed in primary energy under standardized conditions.

The EPC inspection process and supporting documents to prepare

A four-step process that follows the Walloon Region’s data collection protocol. An on-site inspection is mandatory.

On-site inspection

The energy assessor inspects the property, including its building envelope, technical systems, measurements and checks. Since September 2026, they also record additional information, such as the available roof area for solar panels.

Collection of supporting documents

Invoices, technical data sheets, approved grant applications, plans and certificates help ensure that the property’s actual energy performance is properly taken into account.

Data entry in PACE software

The data is entered into the Walloon Region’s official software and submitted to the regional database.

Certificate issuance

Official numbered certificate, energy rating from A++ to G, renovation roadmap and a 10-year validity period. Received within 48 hours.

Prepare your supporting documents: they can improve your energy rating

Without supporting documents, the energy assessor must apply unfavourable default values. An insulated wall without documentary proof is treated as uninsulated (U = 2.5 W/m².K), compared with 0.24 W/m².K when supported by an invoice. The assessor sends you the list of acceptable supporting documents 5 days before the visit.

Grant applications approved by the Walloon Region

Original invoices (insulation, window frames, boiler, heat pump)

Technical data sheets for materials and equipment

Airtightness tests

CWaPE certificates (solar photovoltaic systems, cogeneration)

Plans and certificates (architect, EPB coordinator)

Download the supporting documents checklist (PDF)

Practical example: with or without supporting documents

Same house, renovated in 2005	Result	Calculation basis
Without supporting documents	Energy rating E-F	Unfavourable default values
With supporting documents	Energy rating B-C	Actual energy performance

Average inspection duration: 45 minutes to 1 hour 30 minutes, depending on the property’s size • Certificate received: within 48 hours after the inspection

How much does it cost? The price depends on the floor area and type of property. From €165 including VAT for a standard apartment, including the inspection, PACE data entry and the certificate. Calculate my price

Pending adoption

Upcoming EPC requirements in Wallonia: what has been announced

On 15 December 2025, the Walloon Government approved, at second reading, the decree transposing the European Energy Performance of Buildings Directive, with the aim of achieving an A-rated building stock by 2050. The timetable below forms part of a draft renovation plan submitted for European approval. The obligations and penalties will be set out in an implementing order that is still being prepared. We will update this page as soon as it is adopted.

Existing homes: target minimum energy rating

2031
Minimum F

2036
Minimum E

2041
Minimum D

2046
Minimum C

2050
Minimum B

Buyers: energy rating to achieve within 5 years of purchase

Purchase from 2028
D within 5 years

Purchase from 2031
C within 5 years

Purchase from 2036
B within 5 years

Purchase from 2041
A within 5 years

Currently: only the existing requirements apply (an EPC certificate for sale and rental).
For purchases from 2028 (proposed): buyers would have 5 years after signing the deed to achieve the required energy rating. Exemptions are envisaged where the work is technically or economically unfeasible.

Heating: the timetable

1 January 2026: oil- and coal-fired boilers prohibited in new buildings (in force).
1 January 2027: ban extended to buildings treated as new and buildings that can be connected to natural gas (announced).
1 January 2031: replacement of oil-fired boilers in existing buildings no longer permitted (announced).

Renovation support since 1 October 2026

The Walloon housing grants (Primes Habitation) have been replaced by two schemes for projects that improve the property’s EPC rating by at least one class:

Rénopack: an interest-free loan, part of which does not have to be repaid.
Rénoprêt: a loan with an interest rate that varies according to your income.

A prior housing energy audit remains mandatory. Learn all about Rénopack and Rénoprêt

My property has an E, F or G rating: what should I do? EPC timetable for the 3 Regions

Why choose Certinergie ?

Over 215,000 EPC certificates issued across Wallonia, Brussels and Flanders. We also operate a training centre for energy assessors, ensuring our teams apply the latest regulations as soon as they come into force.

Certinergie : Agrément officiel Région Wallonne

Official Accreditation by the Walloon Region

Officially accredited energy assessor (CERTIF-P3-02176) authorised to issue compliant EPC certificates.

Certinergie : Certificateurs professionnels formés

Professional Energy Assessors

Our in-house training centre ensures our teams stay up to date with the latest developments. All our Walloon energy assessors are trained in the new 2026 EPC certificate requirements.

Accurate & reliable reports

Our certificates are rigorous, detailed, and leverage every acceptable piece of evidence to reflect your property’s true energy value.

Quick on-site visit within 48h

Availability across all of Wallonia with flexible time slots. Certificate delivered within 48h after the visit.

Certinergie : Intervention rapide sous 48h

Digital client area

Access your documents, track your requests, and download your certificates online. Full history of your properties.

Over 215,000 Certificates Issued

Trusted by notaries, real estate agencies, property managers and building management companies

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“The property owners were impressed by the professionalism and friendliness of the person who prepared this certificate.”

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EPC certificate across the 3 regions

Certinergie operates in all three regions. Each region has its own regulations, calculation method and energy rating scale: a Walloon energy rating of C is therefore not comparable to a Brussels or Flemish rating of C.

Wallonia

EPC certificate compliant with Walloon regulations

Official PACE software
Valid 10 years
A++ to G scale
New certificate since 09/2026

You are here

Brussels

EPC certification under Brussels standards

COBRACE regulation
Energy performance certification reform (decrees of 3 July 2025)

See details

Flanders

EPC certificate under Flemish regulations

Flemish EPC system
VEKA-specific norms

See details

Further information: technical rules for EPC certification in Wallonia

For professionals and property owners who want to understand the assessment protocol in detail.

Measuring floor areas and protected volume (VP / OVP, Ach)

Protected volume (VP) : all spaces that are heated or intended to be heated, enclosed by a thermal boundary. The EPC calculation is based on this volume. A room forms part of the VP if it is heated or if it is enclosed by the building’s insulation.

Ach (heated floor area) : floor area of the protected volume, measured between internal wall surfaces. The specific energy consumption (Espec, in kWh/m²/year) is expressed per unit of this area.

Decision tree: VP or OVP?

Is the room adjacent to the VP? Area > 25 m²? The only kitchen, bathroom, living room or bedroom?

otherwise OVP

Is it heated directly?

Open passage to the VP?

Sufficiently airtight and rainproof?

otherwise OVP

Only room serving this function (kitchen, bathroom, living room, bedroom)?

Indirectly heated or intended to be insulated?

VP/OVP: justification required

Included in the VP

Directly heated rooms
Spaces with an open passage to the VP (over 4 m²)
Rooms that are sufficiently airtight and rainproof
The dwelling’s only kitchen, bathroom or bedroom
Indirectly heated spaces intended to be insulated

Outside the VP

Unconverted or unheated garages
Uninsulated cellars and basements
Unconverted attics
Detached annexes
Rooms that are not permanently accessible

Measurement rules: measurements between finished internal wall surfaces · ceiling height ≥ 1.50 m · staircases counted once on the ground floor · open mezzanines not counted as a separate storey · a portable electric heater is not sufficient · conservatories follow the same rules.

Certificate validity and renewal

The Walloon EPC certificate is valid for 10 years. Certificates issued before 1 September 2026 remain valid until their expiry date.

Must be renewed : after works requiring planning permission or after a new partial report is issued (co-owned property).
Replaced as soon as a new certificate is issued.
Recommended after energy improvement works (insulation, heating) or to reflect grants and works not previously recorded.

EPC assessment method and PACE software

PACE software for existing buildings
Standardised conditions (18°C, standard climate)
A++ to G energy rating scale specific to Wallonia
Results sent to the regional database

Mandatory ICAR address registration (since 1 July 2023)

Every address must be registered in ICAR (Inventaire Centralisé des Adresses et des Rues, the centralised register of addresses and streets) before the EPC certificate is issued.

Address not recognised? Missing house number, unregistered apartment/unit number, or a subdivision into units that has not been officially recorded.

Solution: contact your municipality’s Population Register or Planning Department to have the address added. Allow a few days for synchronisation with PACE.

Partial report for co-owned properties

Co-owned properties can have a partial report drawn up for shared installations and common parts (communal heating, hot water, roof, façades).

Include the data in individual certificates
Identify priority works at the general meeting of co-owners
Facilitate access to regional financial support

Important: a new partial report invalidates the EPC certificates for the units concerned, which must be renewed.

Existing or new buildings: who issues the certificate?

Existing buildings: Planning permission application submitted before 1 May 2010. The certificate is issued by an accredited EPC assessor using PACE software, following a mandatory on-site inspection.

New buildings: Planning permission application submitted after 1 May 2010. The certificate is based on the final EPB declaration prepared by the EPB coordinator. Since 1 January 2026, new buildings must cover 35% of their energy needs with renewable energy, and oil- or coal-fired boilers are prohibited.

Our EPB coordinator service (quotation on request)

Frequently asked questions

Everything you need to know about the EPC certificate in Wallonia, based on the official regulations.

Is my old EPC certificate still valid since the introduction of the new 2026 format?

Yes. A certificate issued before 1 September 2026 remains valid until the end of its 10-year validity period, unless building permit-related works are carried out or a new partial report is issued. You can obtain a new certificate to benefit from the renovation roadmap, for example to reassure a potential buyer.

Does the EPC certificate indicate the cost of renovation work?

Since September 2026, yes, for houses: each stage of the renovation roadmap includes an indicative price range excluding VAT. This is not a quotation. No cost estimate is provided for apartments or properties connected to a shared installation.

Is a housing energy audit required to obtain a Rénopack or Rénoprêt?

Yes. Since 1 October 2026, Wallonia’s renovation support schemes have been provided through Rénopack and Rénoprêt. These require a prior housing energy audit and a renovation project that improves the property’s EPC rating by at least one class. An EPC certificate alone is not sufficient.

How long is an EPC certificate valid in Wallonia?

The Walloon EPC certificate is valid for 10 years from its date of issue. However, it becomes invalid if:

works requiring planning permission are carried out (extension, reconstruction, major renovation)
a new partial report is issued for the co-owned property.

After significant energy improvement works that do not require planning permission, obtaining a new EPC certificate is recommended to reflect the improvements.

How much does an EPC certificate cost in Wallonia?

The price depends on the floor area and type of property (apartment, detached, semi-detached or terraced house). At Certinergie, prices start from €165 including VAT for a standard apartment, including the on-site inspection, data entry into the PACE software and the official numbered certificate. Additional charges may apply to larger buildings or complex situations. Calculate your price online.

What supporting documents should I prepare to optimise my EPC certificate?

Without acceptable supporting documents, the energy assessor must apply default values that are often less favourable.

Gather:

approved grant applications from the Walloon Region (insulation, heating)
original invoices confirming the age of equipment
technical data sheets for insulation materials
airtightness test results
CWaPE certificates for solar photovoltaic systems or cogeneration

The energy assessor must send you the list of acceptable supporting documents 5 days before the inspection.

My property is undergoing renovation. Can I still obtain an EPC certificate?

Yes, but we recommend waiting until the energy improvement works are completed (insulation, heating, glazing) so that the certificate reflects the property’s actual energy performance. An EPC certificate issued before the works will not account for future improvements. If the works require planning permission, the existing certificate becomes invalid. For an urgent sale or rental, an initial EPC certificate can be issued, followed by a new one after the works.

Why does actual energy consumption differ from the certificate?

The certificate shows theoretical energy consumption calculated under standardised conditions (constant temperature of 18°C, standard climate, assumed occupancy) to allow objective comparisons between properties. Actual consumption depends on the occupants’ behaviour (preferred temperature, habits), the weather conditions during the year and the number of occupants. This is intentional: EPC ratings compare buildings, not people’s behaviour.

What is a partial report for co-owned properties?

The partial report describes the shared installations (communal heating, domestic hot water) serving several properties. It is essential for issuing an EPC certificate for each apartment concerned. Prepared by an accredited energy assessor, it is valid for 10 years and must be made available free of charge to every owner by the co-owners’ association. A new partial report invalidates individual certificates based on the previous report.

Is my property subject to the EPC requirement?

The EPC regulations apply in particular to:

Single-family houses, apartments and apartment buildings.
Student accommodation and multi-family houses.
Common areas in co-owned properties (partial report).
Mixed-use buildings with a residential component.
Chalets and holiday homes.
Buildings requiring renovation, uninhabitable or unfit for habitation.
Buildings without a pre-existing heating system.
Buildings that do not comply with planning regulations.

Which buildings are exempt from EPC requirements?

The following are not subject to EPC requirements:

Caravans without permanent ground anchoring, marquees, tents and houseboats.
Ruins or severely deteriorated buildings (subject to approval by the regional authorities).
Buildings at the closed-shell construction stage.
Places of worship.
Low-energy, non-residential industrial and agricultural buildings.
New buildings under 50 m² (regarding energy performance requirements).

Order your EPC certificate Wallonia

Order your EPC certificate in compliance with the new 2026 format and receive it within 48 hours. Our accredited energy assessors operate throughout Wallonia.

Official Walloon Region accreditation
Evidence valued
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Order my EPC See pricing

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