Pitfalls and Mistakes to Avoid Before Investing in Real Estate in Spain

Published on June 30, 2026 and written by Cyril Jarnias

Investing in property in Spain is attracting more and more French speakers. Climate, sometimes still attractive prices, interesting tax benefits in some cases… the total can look tempting. However, the Spanish market is full of legal, tax, and practical pitfalls that can turn a “sunny dream” into a costly nightmare.

This guide reviews the main traps to avoid before investing in real estate in Spain, based on how the Spanish legal and tax system actually works.

Understanding the Spanish Land System Before Signing

The first step is to understand how Spain organizes the proof of ownership. Many mistakes are made simply because the buyer projects the rules of their home country (France, Belgium, Switzerland, Canada, etc.) onto Spanish reality.

The core of the system is based on two separate official registers: the Property Registry (Registro de la Propiedad) and the Cadastre (Catastro). They have neither the same function nor the same legal value.

Property Registry vs. Cadastre: Don’t Confuse Them

The Property Registry is a system of title publicity. Unlike countries where deeds are mainly recorded, Spain records the right of ownership itself. What is registered is considered valid: the state guarantees that the person listed as the owner is indeed the owner and that the recorded encumbrances are the only ones enforceable against third parties.

Next to it, the Cadastre is an administrative register managed by the Treasury. It serves as the basis for calculating local taxes (IBI, garbage tax, etc.). It describes the area, location, and cadastral value. But it does not prove ownership. In case of contradiction, the Property Registry always takes precedence in determining who the owner is and what encumbrances affect the property.

Since the 2015 reform (Law 13/2015), the law requires better coordination between these two databases: during a sale or parcel division, it is no longer enough to say “120 m²”; the property must be linked to precise geographic coordinates.

First Mistake: Relying Only on the Seller’s or Agent’s Papers

Before paying any deposit, two steps are essential:

The Nota Simple is an official extract from the register showing:

– the identity of the registered owner(s);

– the description of the property (area, type, finca reference);

– the encumbrances: mortgages, seizures, easements, usufruct rights, purchase options, etc.;

– certain disputes or restrictions affecting the property.

An old extract or a simple screen shot sent by the agent is not enough: a new seizure or mortgage can be registered overnight. You need a very recent document, ideally from the last 24–48 hours, and keep it in the file as proof of what you relied on.

If the seller is reluctant to provide a recent Nota Simple, minimizes discrepancies between the deed and the register, or claims “it’s just a formality,” you have a serious warning sign.

Typical Errors Related to Titles and Signing Powers

The Spanish market regularly sees sales where the seller is not the registered owner:

Spanish law is clear: you cannot sell what you do not own. Buying from someone who is not listed as the holder in the register means running the risk of annulment or a long and costly dispute.

Before committing, your lawyer must therefore:

– check that the name, identity document number (DNI/NIE/passport), and marital status of the seller match exactly what appears on the register;

– check the power of attorney if someone signs on behalf of the owner: precise scope (can they sell?), date, absence of revocation, international formalities if it comes from abroad;

– trace the chain of ownership if the escritura provided does not match the latest entry in the register.

In case of doubt, the strategy is no longer to collect extracts but to secure the authority: have the registered owner appear in person, obtain a clearer power of attorney, or regularize the succession before the sale.

Surfaces, Plans, and “Phantom Square Meters”: The Headache of Discrepancies

Many pitfalls arise from differences between the actual ground reality, the Cadastre, and the Registry. These gaps are not just a technical detail: they can block a mortgage, prevent a resale, or lead to planning penalties.

“Exceso de cabida”: When the Property Is Larger Than on Paper

When the actual surface area of the property exceeds that recorded in the Registry, it is called exceso de cabida. The law tolerates a certain discrepancy between Cadastre and Registry, but only up to a limit.

It can be summarized as follows:

In practice:

– if the difference is moderate, the notary can incorporate the correction directly into the deed of sale;

– if it exceeds 10%, you enter a real procedure, sometimes judicial, which can delay or compromise financing.

Special Case of Properties in Condominiums (Horizontal Property)

For apartments and condominium residences, the temptation is common: “adding” a few meters by enclosing a loggia, annexing part of the common areas, or modifying the interior layout.

– to modify this constitutive deed;

– to obtain the unanimous vote of the owners’ assembly in most cases;

– to sign an amending notarial deed;

– and then register it with the Registry.

Without this complete chain, the Registry will refuse to recognize the “extra meters”. Trying to circumvent the system by a simple cadastral rectification or a simplified procedure under the Mortgage Law (articles 199/201) almost certainly leads to a suspension at the registry.

Accepting to buy an apartment whose actual surface area matches neither the escritura nor the Registry, thinking “everyone does it,” exposes you to:

– a mortgage loan refusal;

– major complications at the time of resale;

– disputes with the homeowners’ association.

Planning Pitfalls: Illegal Houses, Missing Permits, and the Coastal Law

The biggest catastrophic mistake remains the purchase of a property without any real legal status: no building permit, unauthorized extensions, lack of first occupancy license, construction in a protected area or on public maritime domain.

Building Permit, Completion Certificate, and First Occupancy License

To be legally habitable, a home must go through a complete administrative process:

– building permit (licencia de obra): authorization to build issued by the town hall;

– final completion certificate (certificado final de obra) by the architect;

– first occupancy license (licencia de primera ocupación, LPO) or habitability certificate depending on the region.

The trap for the foreign investor, especially in coastal or rural areas (Andalusia, Canary Islands, rustic zones in Catalonia), is to buy:

The risks are severe:

– impossibility of legally connecting water, electricity, or gas;

– mortgage loan or financing refusal;

– inability to obtain a tourist rental license;

– in extreme cases, partial or total demolition order, without right to compensation, even if you bought “in good faith.”

Before investing, your lawyer must request from the Ayuntamiento:

– a copy of the building permits and any modifications;

– the first occupancy license or equivalent documents;

– a certificate stating the absence of sanction proceedings or demolition order.

Coastal Law, Public Domain, and Military Zones: Invisible Traps

The dream of the “beachfront” house is precisely where trouble can be most serious.

Before buying near the beach, it is essential to check:

– if the plot is in the protected zone (generally 100 m from the shoreline, but sometimes reduced to 20 m or extended to 200 m);

– if the building predates the law and, if so, is subject to a concession;

– if there are any additional restrictions (passage easements, height limitations, impossibility of expansion).

Many cases of houses built in these areas have led to demolition orders, sometimes several decades after construction. The fact of having bought recently, before a notary, does not immunize against the application of the law.

Another specific pitfall: military or strategic zones. For non-EU buyers, some land near military bases or sensitive sites requires written authorization from the military authority. Without this green light, you can sign before the notary, but the Registry will refuse to register the property in your name. A complete legal dead end.

Hidden Debts and Charges That Follow the Property

In Spain, many debts and charges are tied to the property rather than to the person. Buying sometimes means taking on a liability you never incurred.

Mortgages, Seizures, Easements: What the Nota Simple Reveals (or Not)

The Nota Simple mentions all registered encumbrances:

– mortgages and their amounts;

– seizures, attachments, enforcement proceedings;

– easements of passage, view, drainage, water rights in favor of a neighbor, etc.;

– usufruct rights, properly recorded purchase options.

Some common mistakes:

– believing that a repaid loan is automatically “erased”: as long as the cancellation of the mortgage has not been registered, the encumbrance remains on the register;

– underestimating the impact of an easement: a right of way or view can significantly limit your possibilities for extension or fencing;

– ignoring a purchase option already registered: its poor wording or lack of registration can also create conflicts if the beneficiary comes forward.

During checks, your lawyer must obtain clear information on:

– how and when the release of any remaining mortgage will be signed;

– who bears the costs of cancellation at the registry;

– the effective disappearance of the charge after registration.

Homeowners’ Association Fees: A Debt That Sticks to the Walls

For any property subject to the homeowners’ association (comunidad de propietarios) regime – apartments, housing developments with pools, gated communities – Spanish law provides that unpaid community fees follow the property.

In practice:

– at the time of sale, the property remains encumbered by unpaid ordinary or extraordinary charges (derrama) from the current year and the three preceding calendar years;

– the new owner becomes legally liable for these arrears, even if the sales contract states otherwise, and even if they were unaware of them.

Some communities, especially in coastal areas with pools, gardens, security, can have high monthly fees, sometimes several hundred euros. An arrear of a few years can quickly amount to tens of thousands of euros.

To avoid this trap:

Local Taxes (IBI) and Fees: The Taxes That Travel with the Property

The IBI (equivalent to property tax) is calculated on the cadastral value. Here too, non-payment generates a charge that follows the property:

– the town hall can register a lien on the property to recover the years owed;

– during a check, the new owner may end up paying four years of unpaid IBI, plus interest and surcharges.

Before purchase, your lawyer must obtain:

– the IBI receipts for the last four years;

– a certificate from the town hall attesting to the absence of local tax arrears if necessary.

Add to this any unpaid garbage tax (basura) and the risk of disconnection of services (water, electricity) due to old unpaid bills: suppliers may refuse to connect a new holder until the previous debt is settled.

The Most Costly Mistakes: Buying Without an Independent Lawyer

If there is one point on which all serious practitioners agree, it is this: never buy without an independent Spanish lawyer (abogado) who works only for you.

Contrary to what many French speakers used to the French system assume:

Why the Lawyer Recommended by the Agent Is Not a Good Idea

Another classic trap is accepting “the agency’s lawyer” or the advisor recommended by the developer. The conflict of interest is obvious:

– their flow of cases depends on the agency or developer, more than on you;

– their temptation is strong to prioritize the transaction over the full protection of your interests;

– certain concessions will be presented as “normal” to move the project forward, whereas a completely independent lawyer would advise you to withdraw or renegotiate.

The lawyer you need must:

– be selected and paid solely by you;

– be separate from any structure integrated into an agency;

– have no financial interest in the success of the sale other than their fees.

Their minimum tasks include:

– obtaining and analyzing the Nota Simple and the escritura;

– checking planning, permits, LPO, Cadastre/Registry consistency;

– checking debts (IBI, charges, mortgages, attachments, derramas);

– reviewing all contracts (reservation, arras, compromise) adapting them to your situation (suspensive conditions for loan, termination for major defects, realistic deadlines);

– organizing payments in a traceable and secure way (client account, bank checks for signing).

Reservation Contracts, Arras, and Tricky Clauses

The timeline of a purchase in Spain often involves a series of private contracts before the notarial escritura:

– contrato de reserva (reservation) with a small deposit;

– contrato de arras (often 10% of the price);

– public deed before the notary.

Each stage can contain traps if not drafted by or under the control of your lawyer.

Reservation Contract: False Security, Real Risk

The reservation contract is often presented as a simple formality to “block” the property. In practice:

Never sign a reservation contract without carefully reading all the clauses and conditions.

– professional translation if you do not master legal Spanish;

– express validation by your lawyer, who must modify clauses if necessary;

– clear refund conditions if serious anomalies are discovered during checks.

“Arras” Contract: Understanding What You Risk

The arras contract is the real compromise in Spanish law. The most common regime is that of arras penitenciales:

Hence the importance of: education, communication, collaboration, innovation.

– providing for precise suspensive conditions (obtaining a loan, absence of major planning defects, regularization of such an extension, delivery of a certificate of non-debt, etc.);

– setting a realistic deadline for signing before the notary, taking into account administrative procedures (NIE, fund transfers, etc.) and banking procedures (offer, appraisal, mortgage setup).

Signing arras before completing due diligence or without protective clauses means accepting to gamble a significant sum on unverified legal assumptions.

Off-Plan and New Developments: A Minefield for Foreigners

Buying off-plan sometimes allows you to benefit from more attractive prices or pay in installments. But Spanish real estate history, especially during the 2008-2009 crisis, has shown how this type of investment can go wrong: developer bankruptcies, abandoned projects, endless delays, quality far below the description, revoked permits…

Bank Guarantees and Escrow Accounts: Non-Negotiable

Spanish law in principle requires developers to guarantee the sums paid by buyers through bank guarantees or equivalent insurance, until the effective delivery of the property. In practice, the application of these rules has often been uneven, even circumvented.

– check, through your lawyer, the existence and validity of an individual bank guarantee covering each deposit;

– refuse to transfer funds directly to the developer’s account without this guarantee;

– as much as possible, prefer payments into an escrow account managed by your lawyer, released as contractual milestones are met.

Deadlines, Specifications, and Permits: Everything Must Be in Writing

The main sources of disappointment in off-plan purchases are due to:

To reduce these risks:

– the contract must contain clear deadlines, with penalties or a right of termination with full refund of sums in case of significant delay;

– the technical description (“memoria de calidades”) must be detailed and annexed to the contract, so that it can be compared at delivery;

– your lawyer must check with the town hall that the building permits are in force and that the project is not subject to an appeal or suspension.

Never rely on commercial brochures or verbal promises from the developer.

Real Budget: Don’t Be Trapped by “Invisible” Costs

Focusing on the listed price is one of the most common mistakes. In Spain, acquisition costs and recurring expenses represent a significant part of the investment and can destabilize a poorly calibrated budget.

Purchase Taxes: New vs. Old, a Sum That Changes Everything

In a very broad summary:

– on a new property, you pay VAT (IVA) and a stamp duty (AJD);

– on an existing property, you pay a transfer tax (ITP).

The rates vary by region, but the orders of magnitude are as follows:

In practice, on a property worth €300,000:

– existing: you often need to budget 10 to 13% more (ITP + notary + registry + lawyer, etc.);

– new: the total is more like 12 to 14% (10% VAT + AJD + miscellaneous fees).

Ignoring these percentages means risking a cash flow shortfall at the crucial moment.

Notary, Registry, Lawyer, NIE, Bank Fees: The Mosaic of Small Amounts

In addition to taxes, there are also:

If you finance through a Spanish loan, add:

– possible bank processing fees (0–1%, sometimes more);

– appraisal (tasación) of the property by an approved expert: €250 to €600 depending on the type and value.

Recurring Costs: What Many Investors Discover Afterward

Once you become an owner, several charges recur each year:

Underestimating these costs is a classic trap, especially for second home or seasonal rental projects where you overestimate income and underestimate expenses.

Currency Exchange: The Variable That Can Cost Thousands of Euros

For investors whose savings are in Swiss francs, dollars, pounds sterling, Scandinavian kronor, or other currencies, currency risk is often the most neglected item. Yet a variation of a few cents on the EUR/GBP or EUR/USD rate can represent tens of thousands of euros on an acquisition.

Why the Timing of the Exchange Is So Critical

A real estate transaction takes place over several months: offer, reservation, arras, signing, possibly progress payments for an off-plan purchase. Meanwhile, exchange rates move.

Take the example of a British buyer purchasing a property for €300,000:

A simple variation of 6 cents represents about £14,000 difference without the price in euros having changed a cent. And such fluctuations can occur while you are waiting for loan approval or the end of legal checks.

Common Currency Exchange Mistakes

Main missteps:

– budgeting based on a single rate observed one day, without any margin;

– leaving the exchange to the very last minute, making a “spot” conversion the day before signing, at the mercy of the market;

– using your retail bank without comparing with specialist currency exchange providers: bank spreads (2–4%) can cost €6,000 to €12,000 more on a transfer of €300,000;

– ignoring risk management tools (forward contracts, limit orders, staggered transfers).

Conversely, preparing a currency strategy from the start (rate alert, splitting transfers, or even a forward contract to lock in a rate) helps to secure the final bill.

Taxation for Non-Residents: Avoid Unpleasant Surprises After the Purchase

Beyond acquisition taxes and local taxes, Spain also taxes non-resident owners on:

– imputed income for periods when the property is not rented;

– rental income actually received;

– capital gains upon resale;

– and, above certain thresholds, net wealth held in Spain.

Ignoring these mechanisms is a frequent source of post-purchase tax bills.

Imputed Income and Non-Resident Income Tax

A non-resident who owns a property in Spain and does not rent it out must declare a fictitious income calculated on the basis of the cadastral value:

This declaration is made via the Modelo 210 form, often ignored. The Spanish tax authorities then apply increasing penalties for late filing, surcharges, and interest. Many foreign owners only become aware of this when selling, when they are asked to regularize several years.

Rental Income, Capital Gains, and Withholding Tax

For rentals, the gross rents received are taxed in Spain. For a non-resident, the standard rate is 24%, reduced to 19% for EU/EEA residents, with limited possibilities to deduct expenses in some cases.

Finally, a non-resident whose net wealth located in Spain exceeds certain thresholds (e.g., €700,000, adjusted by region and wealth tax law) may be subject to Spanish wealth tax, with progressive rates reaching several percent.

Morale: the investment strategy must incorporate, from the outset, the tax dimension (residence, tax treaties, possible structuring through a company, etc.), otherwise the investor may see their returns significantly eroded.

Protecting Your Investment from Scams and Dubious Agents

Spain does not have a uniform regulated status for real estate agents: almost anyone can call themselves an “agente inmobiliario”, without a diploma or mandatory registration (except in a few regions that regulate more). This opens the door to:

– serious and competent professionals;

– but also to a host of improvised or even ill-intentioned intermediaries.

Warning Signs with an Agent or Seller

A few recurring red flags:

In the internet age, too-good-to-be-true offers, especially for rentals or “flash” sales, very often hide outright scams: non-existent property, fictitious owner, keys never delivered, or a property that looks nothing like the photos.

The answer: never pay any money before:

– having seen the property (or sent someone you trust to see it);

– having verified, through a lawyer, the seller’s identity and the situation on the register;

– having signed a contract reviewed by your advisor.

Strategic Checklist Before Investing

Rather than adding endless lists, it is useful to structure your approach around five verification blocks, to be carried out with your lawyer:

– 1. Title and ownership

– Seller = registered owner?

– No ambiguity concerning identity, succession, power of attorney?

– 2. Encumbrances and debts

– Mortgages, seizures, easements, options?

– Certificate of non-debt from the community, IBI receipts, no arrears on services?

– 4. Overall costs and taxation

– Acquisition budget = price + 10–15% in fees?

– Evaluation of annual costs (IBI, charges, maintenance, non-resident taxes)?

– Impact of exchange rates and currency conversion strategy?

– 5. Contracts and timeline

– Suspensive conditions well drafted in the arras?

– Realistic deadlines for NIE, financing, checks, signing?

– Payments secure and traceable, reflected in the escritura?

Until these five blocks are opened, analyzed, and validated, you are not in a position to buy with full knowledge.

Conclusion: In Spain, Your Best Protection Is Your Own Diligence

Spanish real estate offers real opportunities, provided you accept a sometimes disconcerting reality for a French speaker: the state protects what is registered but does not hold your hand. The notary is not a “transaction lawyer,” the agent is not neutral, and the tax authorities assume you know your obligations.

The investors who get caught are almost always those who:

Conversely, those who:

– engage an independent Spanish lawyer from the start;

– take the time to uncover all discrepancies between the deed, register, cadastre, and reality;

– integrate hidden costs (tax, community, exchange, renovation) into their business model;

are those who, a few years later, can say that investing in real estate in Spain was a success — and not a financial black hole.

The key is therefore not to avoid Spain, but to avoid haste, approximation, and naivety. In Spanish real estate, vigilance is not an option: it is your best asset.

Cyril Jarnias

Cyril Jarnias is an independent expert in international wealth management with over 20 years of experience. As an expatriate himself, he is dedicated to helping individuals and business leaders build, protect, and pass on their wealth with complete peace of mind.

On his website, cyriljarnias.com, he shares his expertise on international real estate, offshore company formation, and expatriation.

Thanks to his expertise, he offers sound advice to optimize his clients' wealth management. Cyril Jarnias is also recognized for his appearances in many prestigious media outlets such as BFM Business, les Français de l’étranger, Le Figaro, Les Echos, and Mieux vivre votre argent, where he shares his knowledge and know-how in wealth management.

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