Pitfalls of buying property in Spain — the 7 mistakes to avoid

Spain remains one of the most popular destinations in the world for foreign property buyers, and the vast majority of transactions complete without serious problems. But a meaningful minority go badly wrong — not because of bad luck, but because buyers walked into entirely avoidable traps. The Spanish property market has some characteristics that are genuinely different from the UK, US, or Australian systems that most expat buyers are used to. The traps are well-documented. The solutions are straightforward. The problem is that buyers don't find out about them until after they've signed something.

This guide sets out the seven most significant pitfalls — with enough detail that you actually understand why each one is dangerous, not just that it exists. Read this before you view a single property.

Pitfall 1: Not using an independent lawyer

This is the single most important thing to understand before buying property in Spain: the notary is not your lawyer. And the agent's recommended lawyer is probably not independent either.

In the UK, both buyer and seller have their own solicitor who acts exclusively for them. In Spain, the notary witnesses the transaction and certifies the signatures — but the notary's role is to authenticate the deed, not to protect you. The notary does not carry out due diligence on your behalf, does not check planning permissions, and does not flag problems in the Nota Simple that could cause you trouble later. They are a notary, not your legal adviser.

The conflict of interest trap: many real estate agents recommend a specific lawyer or gestor. That lawyer works closely with the agency and handles many of their transactions. Even if they are technically competent, they have a commercial relationship with the agent that creates a structural conflict. They are unlikely to flag a problem that would kill the deal — because killing the deal upsets the agent and threatens future referrals.

The fix is simple: appoint your own independent lawyer before you begin viewing. Ask a friend, use a professional directory, or ask your employer. Make sure they are not connected to any agent or developer you are using. Expect to pay around 1% of the purchase price plus IVA. It is one of the most valuable things you can spend money on in the entire process.

Pitfall 2: Buying illegal or unregistered property

Spain has a significant number of properties that are partially or wholly illegal — built without the required planning permissions, with extensions or outbuildings that were never licenced, on land that has no right of construction, or registered as agricultural when they have been converted to residential use. This problem is particularly acute in rural areas — the Andalusian countryside, Murcia, Valencia — but it exists everywhere.

What "illegal" means in practice:

• Extensions added without a building licence (licencia de obras) — these do not exist legally and cannot be insured
• Entire properties built on land classified as suelo no urbanizable (non-buildable land) — the house cannot legally exist and theoretically faces demolition order
• Properties whose physical description does not match what is registered at the Land Registry (Registro de la Propiedad) or the catastro (property cadastre)
• Properties in coastal zones built before (or in breach of) Spain's coastal law — the Ley de Costas restricts development within 100m of the shore

The critical checks your lawyer must make:

• Nota Simple from the Registro de la Propiedad — confirms registered ownership and encumbrances
• Catastro certificate — the tax-related land record; compare it to the Nota Simple and the physical property
• Certificado urbanístico from the local town hall (ayuntamiento) — confirms the planning classification of the land and any restrictions
• Licencia de primera ocupación (first occupation licence) or the equivalent certificado de habitabilidad — confirms the property is legally habitable

Pitfall 3: Inheriting the seller's debts

In Spain, certain debts are attached to the property itself rather than to the person who owes them. This is fundamentally different from the legal position in most English-speaking countries, where personal debts follow the debtor. In Spain, if you buy a property with uncleared debts, you take on those debts.

The main categories of property-attached debt are:

• IBI (Impuesto sobre Bienes Inmuebles) — Spain's annual property tax, equivalent to UK council tax. Unpaid IBI can result in a charge on the property. The local ayuntamiento can pursue the new owner for up to four years of unpaid IBI.
• Community fees (cuota de comunidad) — if the property is in a building or urbanisation with a community of owners, unpaid community fees are a charge on the property. The community can pursue the new owner for up to three years of unpaid fees.
• Registered mortgages — the most serious category. If the seller has an outstanding mortgage registered at the Land Registry and it is not cleared at completion, it remains on the property and the bank can pursue its debt against the property regardless of ownership change.
• Utility debts — in some cases, suppliers can pursue debt related to the supply address.

Your lawyer must obtain official certificates confirming each of these is clear before completion — or ensure that any outstanding amounts are deducted from the seller's proceeds at the notary and paid off at the point of sale. Relying on the seller's verbal assurances, or on documents the seller has prepared themselves, is not adequate.

Pitfall 4: Signing a reservation contract without independent review

This is where the pressure begins. You have found a property you love. The agent tells you it will be gone by Friday. "Just sign the reservation agreement and pay a small holding deposit — you can pull out later if the survey isn't good." This is the moment the deal goes wrong for many buyers.

The Spanish reservation contract — typically an arras agreement — is a legally binding document. The standard arras penitenciales works as follows: if you pull out, you lose your deposit. If the seller pulls out, they must return double. There is no cooling-off period in the way many buyers expect from their home country.

Standard agency-drafted arras contracts frequently lack:

• Mortgage condition clauses (allowing you to withdraw if your mortgage is refused)
• Survey condition clauses (allowing you to withdraw if structural problems are found)
• Planning search condition clauses (protecting you if the planning checks reveal problems)
• Accurate property descriptions that match the legal records

Without these protective conditions, you sign away the right to a refund if anything goes wrong in the due diligence that follows. The deposit is typically 10% of the purchase price — on a €300,000 property, that is €30,000 at risk.

Pitfall 5: Under-declared purchase price

This is one of the most damaging traps that catches foreign buyers, and it is one where the buyer can end up bearing serious legal and financial consequences.

The scenario: the seller suggests that you declare a lower price at the notary than the actual amount paid, with the difference paid in cash outside the formal transaction. Their explanation: it reduces the capital gains tax they pay on the sale. The saving is presented as something you share, perhaps as a price reduction.

Why this is a serious problem for the buyer:

• It is fiscal fraud in Spain — both buyer and seller are committing an offence against the Hacienda (Spanish tax authority). Penalties include fines and interest on the underpaid tax.
• It raises your own future capital gains tax — when you come to sell, your gain is calculated against the price declared at purchase. By under-declaring now, you increase the taxable gain on your eventual sale by the full under-declared amount.
• It creates problems with mortgage applications — lenders base the mortgage on the declared price, not the real price.
• Hacienda cross-references values — Spanish tax authorities regularly review property transactions and can challenge declared values that fall below assessed market value, raising additional tax assessments.

Decline firmly and politely. If the seller persists, walk away.

Pitfall 6: Off-plan risks without an Aval Bancario

Buying off-plan — purchasing a property before or during construction — carries specific risks that resale purchases do not. Off-plan developments have failed in Spain before, leaving buyers who had paid stage payments with no property and no money back. Spanish law provides protection, but only if you insist on it.

Spanish law (updated by Ley 20/2015 and Ley 57/1968 principles now incorporated into the building regulations framework) requires that developers guarantee all advance payments made by buyers via either:

• An Aval Bancario — a bank guarantee from a financial institution, guaranteeing return of your payments if the developer fails to complete
• An insurance policy from an insurer authorised by the DGS (Dirección General de Seguros)

This protection exists only if you have the documentation. Some developers offer off-plan sales without ensuring buyers have their individual bank guarantee certificate — particularly for earlier stage payments or reservations. Your lawyer must obtain and verify the Aval Bancario or insurance policy before you make any payment to a developer. "The developer told us verbally" is not protection.

Additional off-plan checks: review the developer's financial standing, the planning permission for the specific development (not just the land), the projected completion date and penalty clauses for delay, and the specification standards that will be legally binding at handover.

Pitfall 7: The Golden Visa myth

This one is not a legal trap so much as a widespread misconception — but it costs people significant money when they act on it.

Spain's Golden Visa programme — which granted residency to non-EU nationals investing at least €500,000 in a single Spanish property — was abolished for new applicants in April 2024. It no longer exists as a route to residency for new buyers. Properties purchased after April 2024 with the expectation of obtaining a Golden Visa will not qualify.

But the deeper misconception predates the Golden Visa programme: the idea that buying any property in Spain gives you the right to live there. It does not. Property ownership and residency rights are entirely separate.

A non-EU buyer who purchases a €600,000 villa in Marbella has exactly the same right to be in Spain as someone who has no Spanish property at all — which is 90 days in any 180-day rolling period (the Schengen rule). Owning a property gives you no visa, no residency, no right to stay longer.

To live in Spain long-term, you need a qualifying visa. For remote workers and digital nomads, that means the Spain Digital Nomad Visa. For retirees and those with passive income, the Non-Lucrative Visa. For others, various employment-based routes. The DNV requires a minimum monthly income of €2,849 (2026 threshold) — but it gives you genuine legal residency, not just a property deed.