Documents to Check Before a Property Sale

A practical checklist for deciding whether a property file is complete enough to sign, or whether it needs professional review first.

Before signing a property sale, you should check the title, ownership status, charges, taxes, community or building obligations, planning information, energy documentation, and the seller’s authority to sign. The file is complete enough to proceed only when those documents tell the same story and any gap has been reviewed by the right professional.

For a real-estate agency, the risk is rarely one missing PDF in isolation. The problem is a file that looks complete at first glance but contains a mismatch: a name that does not match, a charge that was not explained, a surface area that changes between documents, or a seller who is not clearly authorized to sign.

Your job is not to replace the notary, lawyer, surveyor, or bank. Your job is to know when the file is clean enough to keep moving and when signing would transfer avoidable risk to the buyer, the seller, and your agency’s reputation.

The ownership documents must prove who can sell

Start with the documents that answer the simplest question: who owns the property, and who has the legal power to sell it?

• Title deed or acquisition deed: confirms how the current owner acquired the property and under what conditions.
• Land registry extract or equivalent registry document: shows the registered owner, property description, charges, liens, mortgages, easements, and other registered limitations.
• Seller identification: the names must match the ownership documents. If they do not, the reason must be documented.
• Power of attorney, court authorization, inheritance documents, or company authority: needed when the person signing is not a simple individual owner acting personally.

What breaks here is usually not dramatic. It is a small inconsistency that later becomes expensive: one owner missing, an outdated registry extract, a company representative without clear authority, or inherited property where the succession paperwork is not complete.

If the seller is separated, deceased, represented by someone else, acting through a company, or one of several co-owners, do not treat the file as routine. That is a professional review point before signing.

The financial documents must show what comes with the property

The next question is what financial obligations will follow the property or affect completion. A buyer may understand the purchase price but still be exposed to unpaid amounts, registered charges, or payment conditions that were not made clear in time.

• Mortgage balance or cancellation documentation: if there is a mortgage, the file should show whether it will be paid off, cancelled, subrogated, or otherwise handled at completion.
• Tax payment receipts or municipal tax information: confirms whether local property taxes or similar obligations are up to date.
• Community fee certificate or homeowners association statement: shows whether there are unpaid community fees, approved special assessments, or pending obligations.
• Utility and service status where relevant: useful for detecting unpaid services, disconnected supplies, or practical issues before handover.

Do not rely on verbal assurances for charges and debts. If an amount will be paid at closing, cancelled after closing, retained from the price, or assumed by one party, the file should make that route visible.

The warning sign is not only unpaid debt. It is vague handling. “This will be sorted out at signing” may be fine when supported by bank, notary, or legal documentation. It is not fine when it is just a sentence in an email.

The property documents must match the property being sold

Even when ownership and finance are clear, the property itself may not match the paperwork. Real-estate agencies see this often: extensions, terraces, storage rooms, parking spaces, renovations, changes of use, or different surface areas across documents.

Request and compare the documents that describe the asset:

• Cadastral, tax, or municipal property description: compare address, boundaries, built area, plot, use, and references against the registry and deed.
• Planning, license, or compliance documents where relevant: especially for new works, conversions, extensions, changes of use, or properties with visible modifications.
• Energy performance certificate: required in many sale processes and often missing until late.
• Occupancy, habitability, or first occupation documents where applicable: important when the buyer needs finance, utilities, or legal confirmation of residential use.
• Inventory or annex list: if parking spaces, storage rooms, furniture, equipment, or fixtures are included, they should be identified clearly.

Surface area differences deserve attention. They are not always a deal-breaker, but they must be understood. Is one figure built area and another usable area? Is a terrace included? Was an extension registered? If nobody can explain the difference from the documents, the file is not ready to be treated as clean.

This is where a structured review helps. Our Property File Review for real estate agencies is designed to flag what is missing and what does not add up before signing, while keeping the decision in human hands. The setup is €1,000 one-off, VAT not included, plus €195 per month with no lock-in.

When the file should go to a qualified professional

A real-estate agency should not try to solve every legal or technical issue internally. The practical decision is knowing when to stop treating the sale as standard and get the right person involved before the parties sign.

Send the file for professional review when you see any of these signs:

• The seller’s name, identity, or authority does not clearly match the ownership documents.
• The registry shows charges, liens, easements, embargoes, or rights that are not explained in writing.
• There are co-owners, heirs, minors, incapacitated parties, companies, or representatives involved.
• The property description differs materially between deed, registry, cadastral, tax, or municipal records.
• Works, extensions, conversions, or changes of use appear in the property but not in the documents.
• Community fees, taxes, mortgage cancellation, or special assessments are unclear.
• The buyer’s financing depends on documents that have not yet been provided.

What gets measured is not a magic percentage of risk removed. It is whether each required document is present, current enough for the transaction, consistent with the rest of the file, and either accepted or escalated. Promising a result without measuring those points is just decoration.

Before signing, the useful question is not “do we have the deed?” It is “does this deed, this registry extract, this tax record, this community certificate, and this seller authority describe the same sale?” That is the difference between collecting documents and controlling the file.