In Bulgaria, the notary checks whether the seller is the registered owner and whether the property carries registered encumbrances - that's it. Unregistered claims, boundary disputes, illegal construction and planning violations fall outside that check entirely.
This isn't a criticism of the notarial system - it performs exactly the function it's designed for: authenticating the transaction and checking officially registered circumstances. The problem is that buyers often assume this check is comprehensive when it isn't.
What the notary actually does - and doesn't
Every property transfer in Bulgaria is executed before a notary in the district where the property is located. Before signing, the notary checks the so-called "stop list" in the Property Register - registered encumbrances, mortgages, seizures and pending litigation against the property.
What falls outside that check: unregistered claims, boundary disputes between neighbouring properties, illegal extensions or additions, and violations of the municipality's spatial development plan. If a broker or seller tells you "the notary checks everything" - treat that as a red flag, not reassurance.
What full legal due diligence actually covers
Under Bulgarian legal practice, a full pre-purchase review typically covers:
- Ownership and chain of title - a clean ownership history, not just the most recent deed
- Cadastre and planning status - whether actual construction matches approved documents
- Encumbrances - mortgages, seizures, easements, rights of way
- Tax and utility debts - unpaid local taxes, electricity, water, heating tied to the property
- Seller's marital status - spousal consent is required if the seller is married
- Access - a lawful road to the property, especially for rural homes and plots
When diligence should start
The most common mistake isn't a skipped check - it's a late one. Legal due diligence should begin before signing a preliminary contract and before paying a deposit, not after. Once a preliminary contract is signed, the buyer has already taken on contractual obligations and has weaker negotiating leverage if a problem surfaces later.
An encumbrance certificate from the Registry Agency is an important but insufficient piece of the picture on its own.
An important change in 2026
As of early 2026, public access to detailed Property Register data is restricted. Checks now require authenticated access via the Registry Agency portal (with a qualified electronic signature) or official encumbrance certificates, rather than informal online lookups. In practice, this makes a structured review through a lawyer or licensed partner more essential than before, not less.
Another practical consequence: registration priority now depends on filing speed. A delay between signing the notarial deed and its electronic registration creates exposure to competing claims - same-day filing is now standard good practice.
How this works in practice with us
Legal due diligence is a built-in step in our full process, not an add-on service the client has to arrange separately. Every property that reaches a preliminary contract with our clients has already passed this review before we recommend paying a deposit.
It's also why foreign buyers who never set foot on the property before the notarial deed can buy with confidence - the review doesn't depend on their physical presence.
Legal Due Diligence on Luxury Property and Penthouses
The higher the value, the costlier every mistake. For luxury property, high-end homes and penthouses, legal due diligence matters no less and is often more extensive: there can be more common areas, terraces and roof spaces, and building permits and changes to the design deserve careful review.
For penthouses, rights over the terrace and roof space, permits for alterations and arrangements with co-owners need particular attention: they should be clear and documented before the deposit.
In the premium segment we recommend starting the check when you choose the property, not after you have committed. This applies most to foreigners and foreign investors who cannot inspect the property in person.