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When is a PEB certificate required in Wallonia?

In Wallonia an existing home must have a PEB certificate (performance énergétique des bâtiments) before it is put up for sale or rent: since 1 June 2010 for the sale of a house, since 1 June 2011 for every home, including rentals. A PEB certifier draws it up after a visit; it is in principle valid for ten years, with a label from A++ to G.

What the advert must state

Every advert gives the label and the unique code of the certificate. A brochure or a detailed web page also states the consumption per m² per year (E spec) and the total consumption per year (E totale), in kWh. The prospective buyer receives the certificate before signing.

A purchase involves other points too, such as the Walloon glossary and the Walloon right of pre-emption. What a report on an address costs is listed under Perceelscan pricing. You can work out the taxes on a purchase for free with the registration duties calculator and the property tax calculator.

The new certificate of September 2026

Since 1 September 2026 a new certificate also contains an indicative renovation path to label A, with the label after the works, a cost estimate (not for an apartment) and the share of renewable energy. An older certificate stays valid until its expiry date.

A duty to renovate after buying?

Not yet. The Walloon Government has approved a draft under which a buyer must reach a minimum label within five years of the deed: D for a purchase from 2028, later C, B and A. Parliament still has to vote on it, and the dates may change. Ask the notary what applies on the day of your deed.

Fines and one exception

Without a valid certificate the seller or landlord risks a fine of €1,000, or €500 for an error in the advert. Anyone buying in order to demolish needs no certificate, provided the acknowledgement of receipt of the demolition application is attached to the agreement.

And the Perceelscan?

The PEB certificate belongs to the building and its owner, not to the plot: the Perceelscan does not show it. Ask the seller for it, before your offer.

How long is a PEB certificate valid?

In principle ten years. A certificate from before 1 September 2026 stays valid until its expiry date, even though there is a new model.

Do I have to renovate after buying in Wallonia?

Not today. A Government draft wants a buyer to reach label D within five years, for purchases from 2028, but Parliament still has to vote on it.

In the other regions

Sources

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