Greek Property Due Diligence: Legal and Technical Checklist

What property due diligence means in Greece

Due diligence is the systematic verification, before commitment, of everything the purchase assumes: that the seller owns what they are selling, that nothing hidden is attached to it, that the building legally exists in the form you are buying, and that no third party has rights that survive the sale. In Greece the checks span two registry systems (the older local land registries and the newer Hellenic Cadastre), the planning and permit record, and the physical property.

This guide is the specialist companion to our stage-by-stage buying checklist: that page tells you when things happen in the transaction; this one goes deep on the verification itself. For the process as a whole, start with the step-by-step buying guide.

Who performs each part of due diligence

Responsibilities can shift with the professional mandates agreed in each transaction — the matrix shows the typical pattern, not a legal allocation. What should never shift: every row has an owner before money moves. Who these professionals are and how they differ is covered in our guide to what an independent property lawyer checks.

Seller, title, and encumbrance checks

Identity and legal capacity of the seller

The starting point: the person selling is who they claim to be, has legal capacity, and — where the property is inherited, co-owned, held by a company, or sold under power of attorney — actually holds the right to transfer it. Inherited property deserves particular care: acceptance of inheritance must be properly completed and all heirs accounted for.

Proof of ownership and chain of title

Your lawyer traces the title back through prior transfers, checking each link was valid and registered. Gaps, informal transfers, unregistered inheritances, or old disputes in the chain can surface years later as competing claims — the search exists to find them now.

Mortgages, liens, seizures, claims, and encumbrances

Registered burdens attach to the property and survive the sale unless discharged. The lawyer searches for mortgages and pre-notations, liens and seizures, registered lawsuits and claims, and servitudes or other real rights in favor of third parties. Finding a mortgage is not necessarily fatal — it is routinely discharged from the sale proceeds at completion — but it must be found, quantified, and contractually handled before the deed.

Land registry, cadastre, and boundary checks

Greece is transitioning from local land registries to the national Hellenic Cadastre, and which system governs your property determines where the searches run. In cadastral areas, the lawyer verifies the property's cadastral sheet: the registered owner, the recorded area and boundaries, and any registered burdens. Discrepancies between the title, the cadastral record, and the surveyed reality are common enough — especially for rural land — that they must be checked, not assumed away.

The engineer or surveyor complements this with the physical dimension: the plot's actual boundaries against the topographic diagram, encroachments in either direction, and whether the surveyed area matches what the contract will say you are buying.

Planning, permits, and technical checks

Building permit and approved plans

The engineer obtains the building permit and approved plans and compares them with the building as it stands. What was authorized, what was built, and what has changed since are three different questions, and the differences are where problems live.

Unauthorized construction and alterations

Unpermitted structures, extensions, closed balconies, converted basements, and similar alterations are a well-known feature of the Greek building stock. Successive legalization schemes have allowed many to be regularized — but a specific property may be fully legalized, pending, or ineligible, and the status affects whether the sale can lawfully complete and at what cost. Require documentary proof of legalization, not assurances.

Electronic Building Identity

Greece operates an Electronic Building Identity register — a digital file of the building's permits, plans, and legal status, completed by an engineer, which has become part of the documentation for property transfers. Your engineer and notary will confirm what the current requirement is for your transaction; treat the certificate as a due-diligence document worth reading, not a formality.

Engineer inspection and structural concerns

Beyond legality, the engineer assesses the building physically: structure, damp, roof, seismic considerations for older construction, installations, and — for renovation candidates — a realistic view of feasibility and cost. For older, rural, or damaged buildings, this inspection is the difference between a renovation budget and a renovation surprise.

Shared ownership, debts, and tax documentation

Condominium rules and common expenses

For apartments, review the building's constitutive deed and regulations: what you may and may not do with the unit, how common expenses (koinochrista) are allocated, and any restrictions on use or letting. Ask for confirmation that the seller has no outstanding common-expense debts — inheriting the previous owner's arrears dispute is not how you want to meet the neighbors.

ENFIA and seller tax documentation

Before the deed, the notary requires tax-related certificates from the seller — including documentation connected to ENFIA, the annual ownership tax, and the joint transfer tax declaration must be submitted and paid. Your lawyer and accountant confirm the seller's property-tax position is clean, because unpaid property taxes complicate — and can block — the transfer.

Situational checks — when they apply

• Access and easements — legal access to the property (critical for rural plots), rights of way in either direction, and utility easements.
• Forestry status — land characterized as forest carries severe building and use restrictions; forestry-map status should be checked for rural land.
• Coastline and shoreline zones — properties near the sea are checked against the defined shoreline (aigialos) zones, which restrict construction and use.
• Archaeological constraints — designated zones can restrict building or trigger oversight; relevant in much of Greece.
• Zoning and out-of-plan land — land outside town plans (ektos schediou) has materially stricter and evolving buildability rules. Never assume a plot can be built on; have the engineer confirm what current rules allow.
• Leases, occupants, and possession — existing tenancies or occupants have rights that can survive the sale; confirm the property will transfer with vacant possession if that is what you are buying.
• Border-area restrictions — in designated border and strategically sensitive areas, certain non-EU buyers need an additional permit before acquiring property. If you are buying near a frontier, raise it with your lawyer at the outset.

Deposit and preliminary-contract protections

Due diligence and contract protection work together. If a deposit secures the property while checks finish, the preliminary agreement should make it conditional: refundable if defined checks fail, with clear deadlines and a documented payment route. An unconditional deposit paid before verification is the most common way buyers lose money without ever completing a purchase.

What must be resolved before the final deed

• Title confirmed clean — ownership, capacity, and chain verified in writing.
• Encumbrances discharged or contractually handled — with the mechanics in the deed.
• Planning status documented — permits, legalizations, and required certificates in hand.
• Registry position consistent — cadastral record matching title and survey.
• Seller's tax certificates produced — and the transfer tax declared and paid.
• Possession terms settled — vacant possession or documented tenancies, as agreed.
• Any special permits obtained — border-area or other transaction-specific approvals.

Red flags that justify pausing — or walking away

• Pressure to sign before checks finish — the deadline is the tell.
• Reluctance to provide documents your lawyer or engineer has requested.
• Unresolved inheritance — heirs missing from the paperwork or acceptance incomplete.
• Material differences between the building and its permits with no documented legalization.
• Boundary or area discrepancies between title, cadastre, and survey that nobody can explain.
• Requests for undocumented payments or price arrangements outside the contract.
• “It will be sorted after signing.” After signing, it is yours to sort.

Summary checklist

A condensed version of this guide to work through with your professional team — print-friendly by design:

• Seller identity, capacity, and right to sell verified
• Chain of title traced and clean
• Mortgage, lien, seizure, and claims searches complete
• Land registry / cadastre records consistent with title and survey
• Boundaries confirmed by the engineer against the topographic diagram
• Building permit and approved plans compared with the actual building
• Unauthorized construction identified and legalization documented
• Electronic Building Identity / required certificates confirmed
• Structural inspection completed for older or renovation properties
• Condominium regulations and common-expense position reviewed
• Seller tax and ENFIA documentation produced
• Access, forestry, coastline, archaeological, and zoning issues checked where relevant
• Leases and occupancy status confirmed
• Border-area permit obtained if required
• Deposit conditional and documented; contract terms approved by your lawyer
• Everything above resolved in writing before the deed