Practical legal guidance for international clients in Spain

Reservation Agreement in Spain: Why Your Lawyer Should Read It Before You Sign

Nowadays, the most common first step to buy a property in Spain is that the buyers are asked to sign a Reservation Agreement.

Many foreign buyers assume that a Reservation Agreement is simply an administrative formality designed to take the property off the market, and keep it available only for them. In reality, this document can have significant legal and financial consequences. So, understanding what a Reservation Agreement is, what obligations it creates, and what happens if the transaction does not proceed, is essential before signing it.

In this guide, we explain everything international buyers need to know about Reservation Agreements in Spain, and why obtaining independent legal advice before signing this agreement (much better than after having signed it) can help protect your investment.

reservation agreement Real Estate Lawyer Raquel Yepes English-speaking Lawyer Málaga Costa del Sol

1. What is a Reservation Agreement?

A Reservation Agreement is a private contract entered into before the purchase of a property. Its primary purpose is to reserve a specific property for a prospective buyer for an agreed period while the parties undertake the legal and financial steps required to complete the transaction.

In consideration of the seller withdrawing the property from the market during that period, the buyer usually pays a reservation fee to the seller (or, in some cases, to the estate agent), which, if the transaction proceeds to completion, is credited towards the purchase price.

Reservation Agreements are particularly common in new-build developments, holiday homes, off-plan properties, purchases involving international buyers, and transactions handled by estate agents.

Although Reservation Agreements are widely used, there is no standard format under Spanish law. Every agreement is different, making legal review particularly important.

2. Why is a Reservation Agreement used?

A Reservation Agreement gives both parties time to prepare for the purchase while reducing the risk that another buyer acquires the property.

During this period, several important steps usually take place, including:

  • Legal due diligence
  • Verification of ownership
  • Registry searches
  • Mortgage applications
  • Obtaining a Spanish NIE number
  • Reviewing planning and licensing documentation
  • Preparing the private purchase contract
  • Drafting the deposit contract (Contrato de Arras)
  • Organising completion before a Spanish Notary

The Reservation Agreement effectively creates a temporary exclusivity period while these matters are addressed.

3. Is a Reservation Agreement legally required in Spain?

Spanish law does not require buyers to sign a Reservation Agreement before purchasing property; it is simply one of several pre-contractual arrangements commonly used in Spanish real estate transactions, specially when an Estate Agent is involved.

In many cases, buyers proceed directly to a Deposit Contract (Contrato de Arras) or to a private purchase agreement without signing a Reservation Agreement.

4. What does a Reservation Agreement usually include?

Although there is no standard form of Reservation Agreement under Spanish law, most agreements prepared by estate agents or property developers follow a broadly similar structure.

They are usually relatively short documents intended to record the buyer’s intention to purchase the property, the payment of a reservation fee and the seller’s commitment to withdraw the property from the market for a limited period.

However, the level of detail varies considerably from one agreement to another. Some contain only basic commercial terms, while others include additional clauses dealing with specific aspects of the transaction.

For that reason, buyers should never assume that all Reservation Agreements offer the same level of protection or address the issues that may arise before completion.

In any case, Reservation Agreement must always include:

4. a) Identification of the Parties

The agreement should clearly identify the buyer and the seller, together with the property that is being reserved.

If an estate agent is involved, the agreement should also make clear whether the agent is acting merely as an intermediary or whether it is also receiving and holding the reservation fee on behalf of the seller.

Where the seller is a company rather than an individual, it is also advisable to verify that the person signing the agreement has the authority to do so.


4. b) Description of the Property

The property should be described with sufficient precision to avoid any uncertainty about what is being reserved.4.

Although Reservation Agreements are often less detailed than the final purchase contract, they should still include enough information to identify the property, such as its address and, where available, its Land Registry details or cadastral reference.

If the purchase includes parking spaces, storage rooms or other ancillary elements, these should also be expressly mentioned.

4. c) Reservation Fee

One of the key provisions of the agreement concerns the reservation fee.

The document should specify the amount to be paid, when payment is due and who will receive the funds.

In practice, many Reservation Agreements contain only limited information about what happens to the reservation fee if the transaction does not proceed. Some simply state that the amount is non-refundable if the buyer withdraws, without addressing other possible scenarios.

For this reason, it is particularly important to understand exactly what the agreement says, and, just as importantly, what it does not say.

4. d) Conditions Attached to the Reservation

Many Reservation Agreements are subject to certain conditions being satisfied before the transaction proceeds. These conditions are not mandatory under Spanish law, and depend entirely on what the parties agree.

Common examples include:

  • The buyer obtaining mortgage finance.
  • A satisfactory legal due diligence review.
  • Verification that the seller has good legal title to the property.
  • Confirmation that the property is free from undisclosed charges or encumbrances.
  • The seller providing the documentation required to complete the transaction.

The agreement should also specify what happens if they are not fulfilled. For example, whether the buyer is entitled to withdraw and recover the reservation fee, whether the reservation period may be extended, or whether the parties are expected to renegotiate the transaction.

Unfortunately, many Reservation Agreements deal with these issues only briefly, or do not address them at all, creating uncertainty if unexpected legal or practical problems arise before completion.

4. e) Reservation Period

The agreement will usually specify the period during which the property will remain reserved for the buyer.

During this time, the seller generally undertakes not to market or sell the property to another purchaser, while the buyer is expected to take the necessary steps to move the transaction forward.

These may include instructing a lawyer, arranging finance, obtaining an NIE or carrying out legal due diligence.

The agreement should clearly state when the reservation period begins, when it ends and whether it can be extended by agreement.

4. f) Next Steps in the Transaction

Many Reservation Agreements briefly explain what is expected to happen once the reservation has been made.

Typically, the parties intend to sign a Deposit Contract (Contrato de Arras) or another preliminary agreement before completing the purchase before a Spanish Notary.

However, these provisions are often drafted in very general terms and do not always specify what will happen if legal issues arise during the due diligence process or if one of the parties is unable to proceed within the agreed timeframe.

This is one of the reasons why buyers should not regard a Reservation Agreement as a mere administrative document, and always seek legal advice BEFORE signing it. Even though it is often relatively short, it involves committing funds before the legal position of the property has been fully investigated.

5. Can the Buyer lose the Reservation Fee?

Whether the buyer is entitled to recover the reservation fee if the transaction does not proceed depends primarily on the wording of the Reservation Agreement and the circumstances in which the purchase fails.

Many agreements drafted by estate agents provide that the reservation fee will be forfeited if the buyer decides not to proceed with the purchase. However, the legal position is not always as straightforward as these clauses may suggest.

The enforceability of such provisions must be assessed in light of the specific contractual terms, the conduct of the parties and, where applicable, the general principles of Spanish contract law, including the requirement that agreements be performed in good faith.

Particular attention should be paid to situations where the buyer withdraws because legal due diligence reveals issues that were unknown when the Reservation Agreement was signed. For example, the discovery of undisclosed charges, planning irregularities, ownership disputes or other material defects affecting the property may have a significant impact on the parties’ respective rights and obligations.

For this reason, buyers should avoid assuming that the reservation fee is either automatically refundable or automatically forfeited. Each case must be analysed on its own facts and in accordance with the terms of the agreement.

6. What Happens if the Seller Decides Not to Proceed?

Although less common, the seller may also decide to withdraw from the transaction after signing the Reservation Agreement.

The legal consequences will again depend on the wording of the agreement. Some Reservation Agreements expressly require the seller to refund the reservation fee if the property is no longer available for sale, while others may provide for additional compensation. In many cases, however, the document contains little or no guidance on the consequences of the seller’s withdrawal.

This lack of contractual clarity can give rise to disputes, particularly where the buyer has already incurred significant expenses, such as legal fees, valuation costs, mortgage application fees or travel expenses in anticipation of completing the purchase.

For this reason, it is advisable to ensure that the Reservation Agreement clearly regulates the consequences of either party deciding not to proceed with the transaction, rather than leaving these issues to interpretation after a dispute has arisen.

7. Reservation Agreement vs. Deposit Contract (Contrato de Arras)

Although the terms are sometimes used interchangeably in practice, a Reservation Agreement and a Contrato de Arras (Deposit Contract) are distinct legal instruments and should not be confused.

Both are entered into before the execution of the public deed of sale, yet they serve different legal purposes and produce different legal effects.

A Reservation Agreement is primarily intended to reserve the property for a prospective buyer while the parties carry out the necessary legal, financial and practical steps leading to the purchase. By contrast, a Deposit Contract is generally executed once the parties have agreed the essential terms of the transaction and are ready to assume a more defined contractual commitment.

7. a) Reservation Agreement (Documento de Reserva)

Spanish law does not specifically regulate Reservation Agreements.

Instead, they derive their validity from the general principle of freedom of contract established in Article 1255 of the Spanish Civil Code, which allows contracting parties to agree such terms and conditions as they consider appropriate, provided they are not contrary to the law, morality or public policy.

As a result, the legal effects of a Reservation Agreement depend almost entirely on its wording. It may simply record the payment of a reservation fee and the temporary withdrawal of the property from the market, or it may impose additional obligations on one or both parties.

For this reason, it is a mistake to assume that all Reservation Agreements have the same legal consequences. Each agreement must be interpreted according to its own contractual terms and the surrounding circumstances.

7. b) Deposit Contract (Contrato de Arras)

By contrast, a Contrato de Arras usually represents a more advanced stage of the transaction. At this point, the essential terms of the sale (namely the parties, the property and the purchase price) have normally been agreed, and the parties are preparing to complete the purchase before a Spanish Notary.

Unlike a Reservation Agreement, a Deposit Contract is intended to regulate the parties’ contractual relationship pending completion and may give rise to different legal consequences depending on the nature of the deposit agreed.

Spanish legal doctrine traditionally distinguishes between arras confirmatorias, arras penitenciales and arras penales, each serving a different legal function.

Among these, only arras penitenciales are expressly regulated by the Spanish Civil Code. Under Article 1454, either party may withdraw from the contract: if the buyer exercises that right, they forfeit the deposit already paid; if the seller withdraws, they must return double the amount received.

By contrast, arras confirmatorias generally operate as evidence that the contract has been concluded and as partial payment of the purchase price, while arras penales perform a guarantee function by establishing the financial consequences of a contractual breach, without necessarily granting either party a right of withdrawal.

For this reason, the legal effects of a Deposit Contract cannot be determined solely by its title. Spanish courts consistently examine the wording of the agreement and the parties’ intention in order to determine the legal nature of the deposit and the remedies available in the event of non-performance.

7. c) Why This Distinction Matters

In practice, buyers, and particularly those unfamiliar with Spanish property law, often assume that paying a reservation fee automatically grants them the same rights as signing a Deposit Contract.

This assumption can be misleading. A Reservation Agreement is not simply a “lighter version” of a Contrato de Arras. It is a separate contractual arrangement whose legal effects depend on its specific drafting. Likewise, paying a reservation fee does not automatically transform the agreement into a Deposit Contract within the meaning of Article 1454 of the Spanish Civil Code.

Understanding this distinction is essential before signing any pre-contractual document, particularly where substantial sums of money are involved or the agreement has been prepared unilaterally by an estate agent or property developer.


8. What Should You Check Before Signing a Reservation Agreement?

Before signing a Reservation Agreement, buyers should not limit their review to the commercial terms of the transaction. Although the document is often presented as a simple reservation form, signing it may involve assuming legally binding obligations and paying a non-negligible sum of money before the property’s legal status has been fully investigated.

For that reason, a Reservation Agreement should always be reviewed in conjunction with the legal and factual circumstances surrounding the transaction.

Particular attention should be paid to the following matters.

8. a) Is the seller legally entitled to sell the property?

Before paying any reservation fee, buyers should ensure that the person offering the property for sale has the legal capacity and authority to dispose of it.

Where the seller is an individual, this will normally involve confirming ownership through the Spanish Land Registry. Where the seller is a company, it is equally important to verify that the person signing the agreement has authority to bind the company.

Failure to verify these matters at an early stage may expose the buyer to unnecessary legal and financial risks.

8. b) Does the Agreement Allow for Proper Legal Due Diligence?

In most transactions, the Reservation Agreement is signed before a full legal investigation of the property has been carried out. For that reason, buyers should carefully consider whether the agreement allows sufficient time to conduct an adequate due diligence review before becoming further committed to the purchase.

Equally important is determining what will happen if that review reveals issues affecting the property, such as defects in title, undisclosed encumbrances, planning irregularities or missing licences.

Ideally, the Reservation Agreement should specify whether the buyer is entitled to withdraw from the transaction or recover the reservation fee if significant legal issues are identified during the due diligence process.

If the agreement remains silent on these matters, the buyer may find themselves in a far weaker legal position than anticipated.

8. c) Does the Agreement Adequately Protect the Reservation Fee?

The Reservation Agreement should clearly specify the legal treatment of the reservation fee.

In particular, buyers should understand:

  • who will receive and hold the funds;
  • whether the fee will be credited towards the purchase price upon completion;
  • the circumstances in which the payment may be forfeited;
  • the circumstances in which it must be refunded; and
  • whether any contractual mechanism exists to protect the buyer if the transaction cannot proceed for reasons beyond their control.

These issues frequently give rise to disputes and should therefore be addressed with particular care.

8. d) Are the Conditions Attached to the Reservation clearly defined?

If the Reservation Agreement is made subject to conditions, such as the buyer obtaining mortgage finance or the satisfactory outcome of legal due diligence, those conditions should be drafted with sufficient precision.

Ambiguous or poorly drafted clauses may create uncertainty as to whether the buyer is entitled to withdraw from the transaction without financial consequences if those conditions are not satisfied.

The agreement should therefore specify not only the relevant conditions but also the legal consequences of their fulfilment or non-fulfilment.


8. e) Does the Reservation Agreement reflect the intended parties’ transaction?

Finally, buyers should ensure that the Reservation Agreement accurately reflects the commercial terms that have actually been agreed.

The purchase price, the reservation period, the identity of the parties, the property being reserved and any special conditions should all be consistent with the parties’ understanding of the transaction.

Even seemingly minor inconsistencies at this preliminary stage may result in unnecessary disputes or delays later in the conveyancing process.

9. Why Independent Legal Advice Matters

Reservation Agreements are frequently drafted by estate agents or property developers.

Although these professionals play an important role in the transaction, they do not represent both parties equally. Only an independent property lawyer acts exclusively in the buyer’s interests.

Before signing any Reservation Agreement, ask your lawyer for help.

An independent property lawyer can:

  • Review contractual clauses
  • Identify hidden legal risks
  • Verify ownership
  • Carry out due diligence
  • Explain your legal obligations
  • Negotiate amendments where necessary

This is particularly valuable for overseas buyers who may be unfamiliar with Spanish property law.

10. Reservation Agreements for Foreign Buyers

International buyers often purchase property remotely, or visit Spain for only a short period. In some cases, they have only viewed the property through a virtual tour.

As a result, they may be asked to sign Reservation Agreements quickly, sometimes before receiving legal advice.

This increases the importance of reviewing the document carefully.

Foreign buyers should ensure that:

  • The property has clear legal title.
  • Planning documentation is correct.
  • There are no unexpected debts.
  • The reservation fee is adequately protected.
  • The contract accurately reflects the agreed purchase terms.

Obtaining legal advice before signing can significantly reduce the risk of future disputes.

11. Frequently Asked Questions About Reservation Agreements

Is a Reservation Agreement legally binding in Spain?

Yes. Depending on its wording, a Reservation Agreement may create legally enforceable obligations for both parties.

Is the reservation fee refundable?

It depends on the terms of the agreement and the reasons why the purchase does not proceed.


Is a Reservation Agreement the same as a Deposit Contract?

No. Although both are preliminary contracts, they serve different legal purposes and have different consequences under Spanish law.

Should a lawyer review the Reservation Agreement?

Absolutely. Having an independent Spanish property lawyer review the agreement before signing can help identify legal risks, clarify your obligations, and protect your investment.

12. Yepes Legal: Independent Legal Advice Before You Sign

No two property transactions are exactly alike, and the legal implications of a Reservation Agreement will always depend on its wording and the particular circumstances of the purchase.

Obtaining independent legal advice before signing allows potential issues to be identified at an early stage, helps protect your interests and provides greater certainty throughout the transaction.

I advise international clients on all legal aspects of purchasing property in Spain. My services include reviewing Reservation Agreements, carrying out legal due diligence, advising on contractual issues, liaising with estate agents, developers and other parties involved in the transaction, and assisting clients until completion before a Spanish Notary.

If you have been asked to sign a Reservation Agreement and would like independent legal advice before committing yourself, please contact me. I will be pleased to assess your particular circumstances and help you proceed with confidence.

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Buying from Poland? Read my legal guide for Polish investors buying property in Málaga and the Costa del Sol.

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