Buying or selling

Documents for selling an apartment in Belgium: who provides what, and when

The notary sends you a list of documents to gather, and nothing says who holds what. Here is the full file for a sale in a co-ownership, document by document, with the deadlines and how long each one stays valid.

Contents of this page
Step by step
  1. Draw up the list of missing documentsTake the notary's list and mark, line by line, whether the document is already in your hands.
  2. Write to the syndic the same dayAsk in writing for the co-ownership information and for the fee charged to provide it.
  3. Order the EPC and the electrical inspectionStart both checks before the first advert, because the energy label and energy score must appear in it.
  4. Request the property informationThis goes through the Vastgoedinformatieplatform or your notary, and it must be no more than a year old at the time of sale.
  5. Gather the Flemish certificatesAdd the asbestos certificate if the building dates from before 2001, the soil certificate and, where relevant, the heating oil tank certificate.
  6. Hand over the file in writing, with a datePass on the documents before any offer, with the list in the body of your message.

The notary has sent you a list. Ten lines, a few acronyms, and no indication of who holds what. You know the energy certificate is your job, you suspect the property manager (syndic) has his share, and you cannot see where to start.

The documents for selling an apartment in Belgium fall into three families, and that is the only simple way to look at them: what the syndic holds and must provide, what you order from an accredited professional, and what the authorities issue. Each family has its own deadline, and those deadlines do not add up if you start them on the same day. This page takes the file document by document: who issues it, when it must be ready, and how long it stays valid.

The six sets of information only the syndic holds

Before the contract, offer or promise to buy is signed, the buyer must have received a set of information about the co-ownership. The person who passes it on is the notary, the professional intermediary or you, the outgoing co-owner, and the syndic provides it on simple request within fifteen days (Art. 3.94, § 1, extract of the Civil Code circulated by the BIV/IPI). Six sets of information are covered:

  • the amount of the working capital fundGlossaryTotal of the advances paid by the co-owners, as provision, to cover recurring expenditure such as heating and lighting of the common parts or management fees. It is held in a separate account in the association's name. See the glossary and of the reserve fund;
  • any arrears of charges you owe, ordinary and extraordinary;
  • the position of the calls for funds to the reserve fund decided before the fixed date of the transfer of ownership;
  • a list of pending court proceedings and the amounts at stake;
  • the minutes of the ordinary and extraordinary general meetings of the last three years, with the periodic service charge statements for the last two financial years;
  • a copy of the latest approved balance sheet.

The fees the syndic charges for providing this information are yours to pay (Art. 3.94, § 4). The law does not set the amount: it usually appears in the syndic contract, among the additional services. Ask for it in writing at the same time as the file, rather than discovering it on the completion statement.

Two documents the buyer will almost always ask for are not on that list. The articlesGlossaryThe deed of division and the co-ownership regulations taken together. They must be drawn up by authentic (notarial) deed, as must any amendment to them, and transcribed to be enforceable against third parties. See the glossary of the building, that is the deed of division (acte de base / basisakte) and the co-ownership regulations, are in your own purchase deed: you already have them, at your notary's office. The house rules and the register of decisions, for their part, are kept at the registered office of the owners' association (VME/ACP), where any interested party may consult them on site and free of charge (Art. 3.93, §§ 3 and 4), and that includes a prospective buyer in the middle of negotiations. What these documents contain is explained in deed of division and co-ownership regulations.

Who issues what, and when?

DocumentWho issues itWhen it must be ready
Co-ownership informationThe syndic, on written requestBefore the contract, offer or promise to buy is signed
Energy performance certificate (EPC)An accredited energy assessorAt the latest when the publicity first appears, with label and score in the advert
Electrical installation inspectionAn accredited bodyBefore completion, preferably before the preliminary agreement
Asbestos certificate (building from before 2001)A certified asbestos expert; for the common parts, the owners' associationAt the time of the transfer agreement, usually the preliminary agreement
Soil certificate (bodemattest)OVAM, usually requested by the notaryBefore the preliminary agreement, which must state its content
Property information (formerly urban planning extract)Through the Vastgoedinformatieplatform, by you or your notaryNo more than a year old at the time of sale
Flood-risk information (overstromingsgevoeligheid)You or your estate agent, based on the property informationIn the advert, then included in the deed
Post-intervention fileYou, from the contractors' documentsUsually handed over on the day of completion
Title deedYour purchase deed, at your notary's officeFrom the moment the property is put on the market
Heating oil tank certificateIssued after the tank is inspectedOnly if the home is heated with oil

Two validity periods are worth remembering, because they decide whether you need to budget for an expense. The EPC is valid for at most ten years, but for a sale it must have been drawn up from 2019 onwards, and the electrical inspection report for twenty-five years, but a new inspection becomes necessary after work on the installation (selling a house, Vlaanderen.be). If the report finds the installation non-compliant, the buyer in principle has eighteen months after completion to bring it up to standard, which is better negotiated into the price than discovered afterwards.

The documents that do not go through the co-ownership

The EPC is the document that shifts the most dates, because it must exist before the publicity and not just before signing. In Flanders the EPC must be available at the latest when the publicity first appears, and it must have been drawn up from 2019 onwards. The advert must show the energy label and the energy score, plus the full address or the unique code of the EPC. If the home has label E or worse, the advert must also state that a renovation obligation applies to the building, and the same goes for the preliminary agreement and the notarial deed. In Brussels the certificate is required for an individual dwelling of 18 m² or more, must be available from the moment the property is put up for sale, remains valid for ten years, and its energy class appears on the advert and the signs (the EPB certificate for a home, Brussels Environment). There, the owner must also give the valid certificate free of charge to anyone who responds to the advert. One point specific to apartments: the certificate covers your home, not the building. A poorly insulated common roof weighs on your result without you being able to replace it alone, and a well-stocked reserve fund does not improve your label. The works that do move it are covered in energy renovation and grants.

The electrical inspection applies to dwellings, so to apartments too, and is ordered from an accredited body that issues a report of compliance or of reasoned non-compliance. The post-intervention file, for its part, describes the works carried out since 1 May 2001: quotes, invoices, specifications, photos. For the private parts, it is up to you to put it together. For the common parts, the syndic keeps the building's post-intervention fileGlossaryFile compiled during building works that gathers the information relevant to safety and health for future work on the structure. Where applicable, the syndic must keep it in the manner laid down by Royal Decree. See the glossary (Art. 3.89, § 5, 10°), and it is worth asking for it in the same email as everything else.

The asbestos certificate deserves extra attention in an apartment building. When you sell a property in a building dating from before 2001, you must have an asbestos certificate for the private parts, and its content must be disclosed to the buyer when the preliminary agreement is signed. For the common parts, owners' associations have a general obligation to hold an asbestos certificate by 31 December 2026 at the latest; if that certificate already exists, you disclose its content to the prospective buyer when the agreement is concluded (asbestos certificate, Vlaanderen.be). The notary checks whether a valid certificate has been handed over. If it has not, the buyer can claim the sale is void. The standard validity of an asbestos certificate is ten years.

That leaves the administrative documents. The soil certificate is usually requested from OVAM by the seller's notary. The property information (vastgoedinlichtingen), which replaces the former urban planning information, is requested by you or through your notary on the Vastgoedinformatieplatform: it covers, among other things, permits, any planning breaches and pre-emption rights, and it must be no more than a year old at the time of sale.

Flanders or Brussels: what changes?

The co-ownership framework is federal, so it is the same in both regions. The technical certificates, however, are regional, and that is where the file diverges.

FlandersBrussels
Soil certificateIssued by OVAM, usually requested by the notaryIssued by Brussels Environment
Asbestos certificateRequired on sale if the building dates from before 2001; for the common parts the owners' association must have one by 31 December 2026No regional obligation in our sources; ask your notary
Heating oil tankThe tank must be inspected, and the certificate is presented on saleNo regulated inspection; above-ground tank of 3,000 litres or more: declaration or environmental permit
Energy information in the advertEnergy label and energy score, plus the full address or the unique code; with label E or worse, the renovation obligation as well; plus the flood-risk informationThe energy class and the consumption in kWh per m² per year

The penalties are not alike either. In Brussels, the lack of a certificate is first a criminal matter, and if the public prosecutor does not prosecute, the chief officer of Brussels Environment may impose an administrative fine of between 50 and 62,500 euros, with notaries required to report properties put up for sale without a certificate. For Flanders, your notary will confirm the consequences of a missing certificate.

Here is our reading. The size of a fine changes little in your timetable, because in both regions the missing document blocks the advert or the preliminary agreement before it costs anything. The real risk is not the fine, it is a sale pushed back by three weeks.

How long does it take to put the file together?

The deadlines are known, and each fits in one sentence. The syndic has fifteen days on simple request. The property information is requested through the platform and must be no more than a year old at the time of sale, which lets you order it early. The mortgage certificate takes twenty to thirty days, and a reply from the tax authorities twelve days. Between the preliminary agreement and the deed, the notarial profession allows four months at most (buying and financing brochure, notaris.be, in Dutch).

Laid end to end, these figures are daunting. Started on the same day, they fit into a month. So the advice is simple: write to the syndic, order the EPC, the electrical inspection and, if needed, the asbestos certificate, and request the property information on the same day, before the first viewing. That is the only decision of method that matters when selling a unit, and it costs nothing.

Two documents escape this logic because they depend on the building and not on you. The latest approved balance sheet does not exist if the annual meeting has been postponed, and no reminder will make it appear. The position of the calls for funds, likewise, is read from decisions already taken. Tell the buyer and his notary at the preliminary agreement, rather than letting a date be set that nobody can keep. The rest of the process, from splitting the charges to the final statement, is described in selling a unit in a co-ownership.

Handing over the file, and keeping proof of the handover

Passing on the documents is not a minor administrative gesture: it decides what binds the buyer. General meeting decisions taken before his right arose are enforceable against him as soon as they have been communicated to him, and that communication is the job of whoever transfers the unit to him (Art. 3.93, § 5). A file sent by email, dated, with the list of documents in the body of the message, is worth more than a USB stick handed over during a viewing.

Within thirty days of completion, the movement reverses: the notary informs the syndic of the date of the deed, the unit concerned and the identity of the parties (Art. 3.94, § 3). It is this notification that brings the buyer into the building's records, and from then on the steps gathered in becoming a new co-owner begin.

General information like this does not replace your notary's advice on your file, especially if the co-ownership has a pending dispute or a regional certificate is missing. What the buyer should look for in these same documents is set out in buying an apartment in a co-ownership, and the whole handover in buying and selling in a co-ownership.

Do, avoid

Do
  • Send every request on the same day, before the first viewing
  • Ask the syndic for the fee for the file at the same time as the file
  • Also ask for the post-intervention file for the common parts
  • Keep a dated record of handing the documents to the buyer
Avoid
  • Publishing an advert without a valid EPC
  • Waiting for a prospective buyer before writing to the syndic
  • Ordering a new electrical inspection without checking the date of the last one
  • Promising a completion date while the latest balance sheet has not been approved

Where the sale file gets stuck at the preliminary agreement

DocumentWhat is missing at the preliminary agreementWhere to ask for it
Latest approved balance sheetThe annual general meeting was postponed, so no balance sheet has been approvedFrom the syndic, telling the buyer and the notary straight away
Minutes of the last three yearsOne year is missing, often the year the syndic changedFrom the current syndic, who holds the archives of his predecessor
Energy performance certificate (EPC)It is ordered after the advert has gone liveFrom an accredited energy assessor, before the first publicity
Electrical inspection reportThe previous one exists but nobody can find its dateFrom the accredited body that issued it, or from another accredited body
Asbestos certificateOnly the private parts have been inspected, and nobody knows whether the owners' association already has a certificate for the common partsFrom the syndic for the common parts, from a certified asbestos expert for your apartment
Post-intervention file for the common partsNobody asks for it, and the seller only supplies the one for his own unitFrom the syndic, who keeps the one for the building

Frequently asked questions

Who has to ask the syndic for the documents?

The notary, the professional intermediary or the outgoing co-owner passes the information on to the buyer, and the syndic provides it on simple request within fifteen days (Art. 3.94, § 1, Civil Code). In practice, an email from the seller is enough to start the clock, and nothing stops the buyer from also asking the notary how the file is progressing.

How much does the syndic's file cost, and who pays?

The costs of providing this information are borne by the outgoing co-owner (Art. 3.94, § 4, Civil Code). The law does not set the amount: it usually appears in the syndic contract, under additional services. Ask for it in writing before ordering the file.

My EPC is eight years old. Do I need a new one?

Probably. An EPC is valid for at most ten years in Flanders, but for a sale it must have been drawn up from 2019 onwards: an older EPC has to be renewed, even if it is not yet ten years old. So check the year it was drawn up first. The EPC must be available at the latest when the publicity first appears, and the energy label and energy score must be in the advert. In Brussels the certificate is also valid for ten years, and the energy class must appear on the advert and on the signs.

The apartment's electrical inspection is fifteen years old. Is it still good?

In principle, yes: an inspection report for a domestic installation is valid for twenty-five years. A new inspection becomes necessary if work has been done on the installation since then. If the report finds the installation non-compliant, the buyer in principle has eighteen months after completion to bring it up to standard.

Can the buyer refuse to sign if a document is missing?

He can postpone signing, and that is his only real leverage. The co-ownership information is due before the contract, offer or promise to buy is signed, and if the syndic does not reply within fifteen days, the parties are informed (Art. 3.94, § 1, Civil Code). This failure does not suspend the sale, but it does not oblige anyone to sign without having read the accounts.

Official sources and references
Information page based on Belgian law. It does not replace a professional’s advice on your own case.Report an error