The Pitfalls of Buying Property in Spain — and How to Avoid Every One of Them

Most property purchases in Spain complete without drama. But when things do go wrong for foreign buyers, they tend to go wrong in the same dozen ways — and almost every one of them is avoidable with the right check at the right moment. This guide walks through the pitfalls we hear about most from expats buying in Spain, why each one happens, and exactly what to do so it doesn't happen to you. It's general information to help you plan, not legal or tax advice — your independent lawyer is the person who applies it to your specific purchase.

Pitfall 1 — Buying without your own independent lawyer

The single most common root cause behind almost every other problem on this list is that nobody independent was checking the purchase. Spain's buying process does not build a buyer's solicitor into the transaction the way many home countries do. The estate agent is working on the sale, and the notary — as Spain's Consejo General del Notariado makes clear — is an impartial public official who authorises the deed, not an adviser looking out for your interests.

The variant of this pitfall that catches careful people is using the lawyer "recommended" by the agent or the developer. That lawyer may be perfectly competent, but if their ongoing business comes from the party selling to you, they are not independent in the way you need. Choose your own.

How to avoid it: instruct an independent, English-speaking property lawyer before you pay anything at all. Our full guide to what a property lawyer in Spain does and costs covers how to choose one; if you'd like an introduction, our independent legal partner Platinum Legal Spain works with international buyers across Spain.

Pitfall 2 — Paying a deposit before any checks are done

Spain's market moves on reservation deposits: a payment of a few thousand euros "takes the property off the market" while contracts are prepared. The pressure is usually framed as urgency — someone else is interested, sign today. The problem is that many reservation documents are written by the seller's side, and if the checks later reveal a problem, getting that money back can depend entirely on wording you never negotiated.

The stakes rise sharply at the next stage. The main private contract, the contrato de arras, usually involves around 10% of the price. Under the common arras penitenciales form (Article 1454 of the Spanish Civil Code), a buyer who withdraws loses the deposit — even if the reason they withdrew was something unpleasant the checks turned up afterwards.

How to avoid it: never sign a reservation or arras contract, and never hand over money, until your lawyer has reviewed the wording — and ideally not until the essential due diligence has been done. A seller who won't allow a few days for checks is telling you something.

Pitfall 3 — Not reading the nota simple (or not knowing it exists)

The nota simple is a short extract from Spain's Land Registry that states who legally owns the property, its registered description, and any mortgages, charges or embargoes recorded against it. It is the foundation of every safe purchase — and it can be obtained quickly and cheaply through the official Colegio de Registradores.

Buyers who skip it (or rely on the seller's verbal assurances) risk discovering after the fact that the property carried a mortgage, that a third party has rights over it, or that the person who sold it wasn't the sole owner. Married sellers, inherited properties with multiple heirs, and properties held through companies all need particular care.

How to avoid it: your lawyer obtains a fresh nota simple at the start of due diligence and again close to completion, and explains anything registered against the property before you commit.

Pitfall 4 — Inheriting the seller's debts with the keys

One of the least intuitive features of Spanish property law for foreign buyers: certain debts follow the property, not the person who ran them up. Unpaid community-of-owners fees, arrears of the local property tax (IBI), and of course any mortgage still registered on the title can all become the new owner's problem if they are not identified and settled at or before completion.

How to avoid it: due diligence should include a certificate from the community of owners confirming fees are paid up, evidence that IBI and rubbish-collection charges are current, and arrangements at completion for any registered mortgage to be cancelled from the sale proceeds. This is standard practice for a good lawyer — and exactly the sort of thing that quietly doesn't happen when nobody independent is involved.

Pitfall 5 — Illegal builds, unregistered extensions and missing licences

Spain has a long history of construction that ran ahead of its paperwork — particularly in rural areas and in coastal booms of past decades. The property you are viewing may have an extension, a pool, a converted garage or even an entire dwelling that was never properly licensed or never registered. In the worst cases, rural properties have been built on land where residential construction was never permitted at all.

The consequences range from inconvenient (difficulty mortgaging, insuring or reselling) to severe (legalisation costs, fines and, in extreme historic cases, demolition orders). New and newer properties should have a first-occupation licence (licencia de primera ocupación) confirming they can legally be lived in; older rural homes may need careful investigation of their planning status.

How to avoid it: your lawyer checks the planning status with the town hall and confirms the licences match what is physically built. Be especially careful with rural land, recent extensions and anything the seller describes as "all perfectly normal here". If you are buying new, our guide to new-build homes and insurance in Spain covers the documents that should exist.

Pitfall 6 — Assuming the Land Registry and the Catastro agree

Spain keeps two separate official records of property: the Land Registry (Registro de la Propiedad), which records legal ownership and charges, and the Catastro, the administrative and tax registry that records the physical description, boundaries and surface areas — searchable through the official Sede Electrónica del Catastro. They are maintained separately, and it is common for them to disagree: a different built area, a boundary drawn differently, an extension present in one record and absent in the other.

A mismatch is not automatically a crisis, but it can affect what you are legally buying, what you pay tax on, and what happens when you later sell. Discovering a large discrepancy after completion is far more awkward than resolving it before.

How to avoid it: ask your lawyer to compare the registry description, the cadastral record and the physical reality — and to explain any differences before you sign the arras. Where it matters, discrepancies can often be corrected as part of the transaction.

Pitfall 7 — Buying off-plan without the legal protections

Off-plan can be a good way to buy — but it concentrates risk in ways a resale doesn't, because you are paying substantial money for something that does not yet exist. Spanish law requires advance payments to a developer to be secured by a bank guarantee or insurance policy, so that your money is returned if the project is not delivered. The pitfall is signing a developer's contract without confirming that protection actually exists for your payments, or paying instalments to accounts outside the protected structure.

Completed new builds carry their own version of the pitfall: rushing through the snagging process, or not checking that the ten-year structural insurance (seguro decenal) and first-occupation licence are in place.

How to avoid it: before signing, your lawyer confirms the guarantees covering stage payments, reviews the developer's contract (completion dates, penalties, specification), and at delivery checks the licences and warranties. Never let the developer's own representative be the only professional in the transaction.

Pitfall 8 — Tax surprises: under-declaring and the reference value

Two tax pitfalls catch foreign buyers. The first is the old suggestion — thankfully rarer now — to declare a lower price on the deed to "save tax". This is illegal, and exposes both parties to serious consequences; walk away from any transaction structured this way.

The second is more modern and much more common: assuming transfer tax is calculated on the price you actually paid. Since 2022, Spain uses an official cadastral reference value (valor de referencia) as the taxable base for transfer tax on many purchases — and where that reference value is higher than your agreed price, tax is generally assessed on the higher figure. Buyers who negotiated a bargain have been surprised by a tax bill calculated on a value above what they paid. The reference value for a property can be consulted through the Catastro's electronic office, and state tax matters through the Agencia Tributaria.

How to avoid it: have your lawyer or tax adviser check the reference value before you finalise your budget, so the transfer-tax figure in your costings is based on the value the tax office will actually use.

Pitfall 9 — Underestimating what the purchase really costs

The headline price is not the number that leaves your bank account. On a resale, buyers commonly budget an additional amount in the region of 10–15% of the price to cover transfer tax (set regionally, commonly around 6–10%), notary and Land Registry fees, legal fees, and — if borrowing — valuation and mortgage costs. New builds swap transfer tax for VAT (usually 10%) plus stamp duty. Currency movements between agreeing a price and completing can quietly add thousands more for buyers funding the purchase from abroad.

How to avoid it: build the full cost picture before you offer, not after. Our guides to property purchase taxes and buying costs and mortgages in Spain break the numbers down properly, and the ongoing costs of ownership — IBI, community fees, utilities and insurance — belong in the budget too.

Pitfall 10 — Community of owners surprises

Buy an apartment or a house on an urbanisation and you are also buying into a comunidad de propietarios — with its fees, its rules and its politics. The pitfalls hide in the paperwork nobody asked for: a community that has approved (or is about to approve) a derrama — a special levy on all owners to fund major works such as roof repairs, lift replacement or facade renovation — or community statutes that restrict exactly what you planned to do with the property, such as holiday letting.

How to avoid it: ask for the minutes of the last community meetings and a certificate of the community's financial position, and have your lawyer review the statutes. Ten minutes reading the minutes has saved many buyers from inheriting a five-figure share of someone else's roof.

Pitfall 11 — Ignoring flood and natural-risk exposure

Spain's climate produces genuinely extraordinary weather events — the DANA (gota fría) storms that can drop months of rain in hours are the best-known example. Certain locations, particularly near ramblas (dry watercourses) and in low-lying coastal zones, carry real flood exposure that is not obvious on a sunny viewing day.

The insurance system handles this in a distinctly Spanish way: damage from extraordinary natural events is compensated through the official Consorcio de Compensación de Seguros, a public body funded by a small surcharge on insurance policies — but crucially, the Consorcio compensates people who had a valid insurance policy in force. An uninsured property owner is, in general, outside that safety net.

How to avoid it: take location risk seriously when choosing the property (your lawyer and surveyor can help assess it), and treat home insurance as essential rather than optional — it is also your gateway to Consorcio protection for the extraordinary events no standard policy prices individually.

Pitfall 12 — Leaving insurance until after you get the keys

From the moment the deed is signed, the property — and everything that happens to it — is yours. If you buy with a Spanish mortgage, the lender will normally require buildings cover to be in place at completion. But even cash buyers should not let a gap open between signing and cover starting: a burst pipe, a break-in or a storm in the first uninsured week is exactly the kind of bad luck that turns a happy purchase into an expensive story.

How to avoid it: arrange buildings (and contents) insurance in advance, with the start date set to completion day. It can be organised entirely before you arrive in Spain — see our guide to home insurance when buying property in Spain, or go straight to a home insurance quote and we'll line the dates up for you.

The buyer's quick checklist

• Instruct an independent property lawyer before paying anything.
• No reservation or arras signature until the wording has been reviewed.
• Fresh nota simple at the start of checks and again before completion.
• Community certificate + last meetings' minutes + statutes reviewed.
• IBI and utility payments confirmed up to date.
• Planning status, licences and first-occupation licence verified.
• Registry, Catastro and physical property compared.
• Off-plan: bank guarantees confirmed for every stage payment.
• Reference value checked before finalising the tax budget.
• Full cost budget: price + taxes + fees + currency + insurance.
• Home insurance arranged to start on completion day.

Frequently asked questions