Editorial transparency and use of artificial intelligence
This article forms part of the CostaLuz Lawyers blog and is published for general informational and educational purposes only. It was prepared with the assistance of artificial intelligence tools and, before publication, was substantively reviewed and editorially approved by Maria de Castro, a Spanish-qualified lawyer registered with the Cádiz Bar Association under number 2745, founder of CostaLuz Lawyers and the person responsible for the editorial review of the published content.
This article does not constitute legal, tax, immigration, employment, estate-planning or investment advice and does not replace an individual assessment and the professional work of the appropriate CostaLuz Lawyers specialist. No action or omission should be based solely on this information.
Off-plan luxury developments come with a specific legal protection most buyers have heard of but few actually verify properly — and getting this wrong can mean stage payments with no real protection at all.
The legal requirement: a bank guarantee on every payment
Spanish law — specifically Ley 20/2015 — requires that every payment a buyer makes to a developer before construction is finished be guaranteed by a Spanish bank or a Spanish insurer. Without a properly issued guarantee, stage payments on an off-plan luxury property carry no legal protection whatsoever.
What a valid guarantee actually covers
A compliant guarantee must specifically name you as the buyer, cover the full amount you have paid at any given stage, and include 6 per cent annual legal interest — meaning a failed development should return not just your money but statutory interest on top.
The check almost nobody does properly
A bank guarantee is only genuinely valid if the developer already held a valid building licence at the moment the guarantee was issued. A guarantee issued before the licence existed offers no real protection, regardless of what the paperwork says on its face — this timing needs to be independently verified, not assumed.
What protection actually looks like if things go wrong
If the guarantee was correctly issued against a genuinely valid building licence, and the developer later fails to deliver or becomes insolvent, the buyer is entitled to recover every stage payment made, plus the legal interest — but only if that underlying paperwork was in order from the start.
Call us today on +34 919 499 342 or email marialuisa@costaluzlawyers.es before making a stage payment on an off-plan luxury property, so we can verify the guarantee is genuinely valid.
Frequently Asked Questions
What is the legal protection for stage payments on an off-plan luxury purchase?
Under Spanish law (Ley 20/2015), every payment made to a developer before construction is complete must be guaranteed by a Spanish bank (aval bancario) or a Spanish insurer (seguro de caución) — without this, your stage payments have no legal protection at all.
What exactly does the bank guarantee cover?
It must name you as the buyer, cover the full amount you have paid, and include 6 per cent annual legal interest, so you can recover everything paid, plus interest, if the developer fails to complete or deliver the property.
Is a bank guarantee automatically valid once the developer provides one?
No — a critical check. A bank guarantee is only valid if the developer already holds a valid building licence at the time it is issued; a guarantee issued before the licence exists provides no real protection.
What happens to my stage payments if the developer goes bankrupt?
If the guarantee was correctly issued against a valid building licence, it protects all your stage payments, and you are entitled to recover them in full, plus the legal interest, even if the developer becomes insolvent.
Should I only rely on the developer’s own reassurances about the guarantee?
No — the guarantee needs to be independently verified, including confirming the building licence was genuinely in place when it was issued, rather than accepting the developer’s or sales agent’s word for it.
A heritage-protected property carries a different set of risks from an off-plan purchase — see our guide to buying a castle, palace or BIC-protected property.