Off-plan deposit protections in Spain — the buyer’s safety net

Off-plan deposit protections in Spain: the buyer's safety net

Buying off-plan on the Costa del Sol means paying real money for something that doesn't yet exist. Spanish law takes that risk seriously and obliges promoters to ring-fence every euro a buyer pays before completion. This guide explains how staged payments are legally protected under Law 38/1999 (LOE) and Law 20/2015, what a bank guarantee actually does, how to verify it's real, the three contracts you'll sign in sequence, and the contractual levers that protect you if delivery slips. The goal is buyer empowerment: knowing what to insist on, what to verify, and when to walk.

The legal backbone: Law 38/1999 and Law 20/2015

Spain's framework for off-plan deposits rests on two statutes working together. Ley 38/1999 de Ordenación de la Edificación (LOE) sets the construction quality and liability regime. Its Additional Provision One, as rewritten by Ley 20/2015, governs deposit protection for off-plan housing sales.

The principle is straightforward. From the moment a buyer hands over any sum towards an off-plan dwelling, the promoter must:

• Hold those funds in a dedicated special account at a Spanish credit institution, separate from the company's general accounts.
• Apply those funds exclusively to the construction of the development in question.
• Provide an individual guarantee covering each buyer's deposit plus statutory interest, in the form of a bank guarantee (aval bancario) or insurance bond (seguro de caución).

The guarantee must cover all amounts paid on account, plus interest at the legal rate from the date of each payment until refund. Without it, the promoter is in breach of statute, and buyers have grounds to demand repayment.

Aval bancario vs seguro de caución

Two instruments satisfy the law, and they function similarly from a buyer's perspective.

Aval bancario

A bank issues a written guarantee, naming the buyer as beneficiary, undertaking to repay the deposited sums plus legal interest if the promoter fails to deliver on the agreed terms. The bank charges the promoter a commission for this. The buyer receives a certificado de aval individual identifying the property, the secured amount, and the conditions for execution.

Seguro de caución

An insurance company issues a bond with identical economic effect. The buyer is the insured beneficiary, the promoter is the policyholder, and the insurer pays out on the same triggers.

From a risk standpoint, what matters is the solvency of the guarantor and the clarity of the certificate. Both instruments are accepted by Spanish courts and by the Land Registry.

The certificado de aval: what to demand and what to read

The individual certificate is your evidence. A reservation receipt or a clause in the private contract is not enough. You should receive a physical document, on the guarantor's letterhead, that contains at minimum:

• Identification of the guarantor (bank or insurance company) with its tax ID.
• Identification of the promoter as principal debtor.
• Your full name and passport or NIE as beneficiary.
• The specific dwelling, parking space and storeroom, with their registry references where available.
• The amount guaranteed, with provision for legal interest from the date of each payment.
• The agreed delivery date for the property.
• An express statement that the guarantee is issued under Additional Provision One of Law 38/1999, as amended by Law 20/2015.
• The procedure and address for executing the guarantee.

Insist on receiving the original or a notarised copy before, or at the latest at the moment of, making any payment beyond a small reservation. A promise that "the bank will issue it next month" is not adequate.

How to verify the guarantee is genuine

• Contact the issuing bank or insurer directly, using contact details obtained independently rather than from the promoter. Quote the certificate reference and ask them to confirm issuance and current validity.
• Ask your abogado to inspect the underlying póliza colectiva or master policy if one exists, and to verify your individual certificate is registered against it.
• Confirm the special account number named in the certificate matches the account into which you are wiring funds. Payments into any other account fall outside the guarantee.
• Check that the secured amount equals the total you have paid, not just the first instalment. Each new stage payment should be reflected in an updated or supplementary certificate.

What triggers a refund

The guarantee can be called if the promoter fails to deliver the property in the conditions agreed, by the date agreed. In practice, that breaks down into several scenarios:

• Failure to deliver on the agreed completion date. If the contract names, say, 30 June 2026 and the home is not ready for handover with a valid Licencia de Primera Ocupación, the buyer can demand resolution and refund of all sums paid, plus legal interest.
• Failure to obtain the First Occupation Licence. Without this licence the dwelling cannot legally be occupied or hooked up to utilities. Its absence is treated as failure to deliver.
• Substantial defects that render the property unfit for its intended use, or which depart materially from the agreed specification and plans.
• Abandonment or insolvency of the promoter, including liquidation or works that have stopped without prospect of resumption.

The procedure typically begins with a burofax from the buyer's lawyer notifying the promoter of resolution and demanding refund. If the promoter does not pay within the statutory window, the guarantor must. Disputes that escalate end up before the Spanish civil courts, where the case law on Law 20/2015 has consistently favoured buyers holding valid certificates.

The three contracts: reserva, CPV, escritura

An off-plan purchase normally moves through three documents. Each has a distinct legal effect and a different level of commitment.

Contrato de reserva

A short reservation agreement taking the property off the market for a defined period, usually 14 to 30 days, against a modest deposit (commonly €6,000 to €15,000 on Costa del Sol units). It should specify the price, the dwelling, the period for signing the CPV, and what happens to the reservation deposit. A well-drafted reserva states that the deposit is refundable if the lawyer's due diligence reveals title, licensing or guarantee defects.

Contrato privado de compraventa (CPV)

The full private purchase contract. This is where staged payments are scheduled, the delivery date is fixed, the specifications and finishes are attached, and the obligation to deliver an individual guarantee is committed. From the moment you sign the CPV and pay the first stage, Law 20/2015 protections apply in full. The CPV is legally binding but does not, on its own, transfer ownership.

Escritura pública

The notarial deed of sale, signed before a Spanish notario, with simultaneous payment of the balance and handover of keys. Ownership transfers here, and the deed is then registered at the . At this point any outstanding guarantee is cancelled because the protected event (delivery) has occurred.

Contractual protections to insist on

Statute provides the floor. The CPV is where you build above it. Have your lawyer push for the following:

• A clear, dated delivery deadline rather than vague language like "approximately 24 months from licence". Aim for a fixed calendar date with a defined grace period (typically three to six months).
• Penalty clause for delay beyond the grace period. A common formulation is daily liquidated damages calculated as legal interest on sums paid, or a fixed daily amount per day of delay.
• A right of resolution if delay exceeds a stated threshold, with full refund of sums paid plus interest plus a contractual penalty.
• Tight force majeure drafting. Generic pandemic, supply-chain or weather carve-outs should be resisted or narrowed. Insist that any force majeure event suspends rather than extinguishes obligations, and that the buyer can resolve the contract if suspension exceeds, say, six months.
• Specification annex listing every material finish, appliance brand and quality grade, with substitution only by written agreement and only for equivalent or superior items.
• Snagging period with a defined retention or remediation timetable post-completion.
• Confirmation that the guarantee covers VAT (IVA) paid on stage payments, not just the net amount. The standard IVA on new-build residential is 10 percent and represents real money.

Worked example: how the protections perform in practice

Consider a three-bedroom apartment in Estepona at a price of €650,000 plus 10 percent IVA. The payment schedule under the CPV runs as follows:

• Reservation: €10,000 on signing reserva.
• On signing CPV (30 days later): 20 percent of price minus reservation, equal to €120,000, plus IVA on the cumulative paid amount.
• Stage payments during construction: a further 20 percent across two instalments, equal to €130,000 plus IVA.
• Balance of 60 percent (€390,000) plus IVA at escritura.

By the time the building is topped out, the buyer has paid €260,000 net plus €26,000 IVA, totalling €286,000. That entire sum must be covered by an individual aval or seguro de caución, increasing with each stage payment.

The CPV names 31 March 2027 as the delivery date with a six-month grace period. Construction stalls. On 1 October 2027 no First Occupation Licence is in place. The buyer's abogado sends a burofax resolving the contract under Law 20/2015. The promoter has a defined window to refund. When they do not, the guarantor is called. The buyer recovers €286,000 plus statutory legal interest accrued from each payment date, which over an 18 to 24 month construction window can add several thousand euros.

Where a penalty clause was negotiated into the CPV (say, €150 per day after grace), that contractual claim sits alongside the statutory refund and is pursued directly against the promoter.

Common pitfalls

• Paying into the wrong account. Funds wired to a generic company account rather than the special construction account named in the certificate may not be covered by the guarantee. Always verify the IBAN matches.
• Accepting a "guarantee to follow" promise. Some promoters issue the certificate weeks or months after the first payment. During that gap, your money sits unprotected. Refuse to pay beyond a refundable reservation until the certificate is in hand.
• Believing the reservation deposit is automatically protected. Strictly, the statutory guarantee regime attaches to the off-plan purchase. Reservation payments to a holding agent or escrow are protected by contract, not statute. Read the reserva carefully.
• Vague delivery dates. "On completion of works" or "subject to obtaining licences" is not a date. Without a fixed deadline, the statutory refund trigger is harder to establish.
• Force majeure clauses that swallow the contract. A clause defining force majeure to include "any administrative delay" effectively removes the deadline.
• Letting the guarantee lapse. Some certificates contain expiry dates or auto-cancellation triggers tied to the original delivery date. If construction slips, your lawyer must obtain an extension or replacement certificate in writing.
• Skipping independent legal review. The lawyer recommended by the seller is not your lawyer. Engage your own abogado with no link to the promoter.
• Assuming the property purchase brings residency. The Spanish Golden Visa investor route closed on 3 April 2025 under Organic Law 1/2025. Buying off-plan today does not provide a residency pathway. Anyone needing a Spanish residence permit should take separate immigration advice.

Red flags that justify walking away

• The promoter refuses to provide the individual certificate before stage payments begin.
• Payment is requested into an account other than the special construction account.
• The CPV omits a fixed delivery date or contains an open-ended force majeure clause.
• The promoter is a newly incorporated entity with no track record and no group guarantee.
• Building or activity licences are not yet in place for the plot.
• The marketing brochure prices do not match the CPV figures, with unexplained "extras" appearing late.
• Pressure to sign quickly without time for independent legal review.

None of these on its own is necessarily fatal, but two or more together usually means the protections you'd rely on later are not really there.

When to engage professional advisers

Off-plan in Spain rewards good preparation. The cost of professional advice is small relative to the sums at risk, and the right team pays for itself many times over.

• Engage an independent Spanish abogado before signing the reserva, not after. The lawyer should review title, urban planning status, licences, the draft CPV, and the form of guarantee. Expect fees of around 1 percent of price plus IVA for a full off-plan transaction.
• Use a gestor or asesor fiscal for NIE application, tax registration, and ongoing compliance with non-resident tax (IRNR) and, where relevant, wealth tax.
• Speak to a Spanish mortgage broker early if financing forms part of the plan. Off-plan mortgages are typically committed at escritura, but pre-approval shapes the deposit schedule you can comfortably accept.
• Consult a qualified surveyor or architect for snagging and for verifying that delivered specification matches the CPV annex.
• Take separate immigration advice if residency in Spain is a goal. Property ownership and residency are independent legal questions, and the routes available since April 2025 are narrower than before.

The Spanish off-plan regime is, by European standards, unusually buyer-friendly when its protections are properly invoked. The statute is on your side. The work, with the right advisers, is making sure the paperwork matches the statute before any euro leaves your account.