buying property
Buying in Les Rotes, Denia: the Coastal Law Check a Nota Simple Will Never Show You
Before you sign on the Denia frontline, check the property against the coastal deslinde map. A nota simple alone will not tell you whether the Ley de Costas touches your title.
On this page
If you are buying a frontline villa in Les Rotes, here is the one check most people skip. Before you sign anything, have the property checked against the coastal deslinde map held by the Ministry, MITECO. A nota simple on its own will not tell you whether the Ley de Costas touches your land. That document, the one everyone thinks proves ownership, does not show you where the public maritime domain begins.
I am Juan Bertomeu, ICALI 4643. My office has been in Moraira and Dénia since 1991, and my son Daniel, the tax adviser of the family, works alongside me. Les Rotes is one of the most expensive strips in Dénia, and it is exactly the kind of place where the coastal law turns out to be the thing that matters most. So let me give you this the way I would across the desk.
The coastal law in two paragraphs
The Ley de Costas says the strip of land nearest the sea belongs to the State. It is public maritime domain and it cannot be privately owned, full stop. Behind it sits a protection zone, 100 metres inland as a general rule, only 20 in stretches that were already urban when the law came in, where you own the land but the State has a say: works need permission from the coastal authority, and there are real limits on extending what is built.
Where those lines actually fall is fixed by a procedure called a deslinde, run by the Servicio Provincial de Costas. Until it is drawn and approved for your stretch of coast, nobody can tell you with certainty which side your house sits on. And no, it is not on your nota simple. That is the whole trap. The full picture of how this works across Spain sits in our legal guide to buying property in Spain on Expat Abogados; here I want to talk about Dénia.
What happened on the north beaches
Here is why people in Dénia take this seriously. The big, live deslinde right now is not in Les Rotes. It is on the north coast, the beach strip from Les Deveses toward Les Marines. In September 2025 the Ministry approved the definitive deslinde there, and the reported effect is hard to read calmly: several thousand owners left facing a total or partial loss of rights over their homes or land, and in some pockets, Les Deveses above all, homes falling inside the expropriation line itself.
For land that ends up inside the public maritime domain, the effect is severe. It stops being freehold. It converts into a temporary State concession, a right to use for a period rather than full ownership, and the law gives affected owners a window of one year to apply for that concession. There is a route to challenge the decision, administrative appeal and then the courts, and as I write this in 2026 those fights are still live. So on the northern strip you check the current position, you do not assume.
And Les Rotes? A different stretch, with its own history of delimitation, and I am not going to tell you it is settled, because that is exactly the kind of assumption that costs people money. You check the current position for Les Rotes too. What the north beaches prove is what a deslinde can do to an ordinary owner. It is why, on the Rotes frontline, the coastal check is the first thing we run, not the last.
The check to run before you sign
You do not rely on the nota simple, and you do not take the seller's word or the agent's word for it either. To know how the coastal law affects a specific property, you cross the Land Registry with the Servicio Provincial de Costas, where the official deslinde maps are held. In practice, before you buy on the frontline, you have someone order a coastal report, a check of the property against the official deslinde, so you know exactly where your boundary sits relative to the public domain and the protection zone.
It takes a few days. Against the price of a Rotes villa it costs almost nothing, and honestly, it can change the whole deal, because sometimes the answer is that you are not buying full ownership of the whole plot at all. You are buying a use right with conditions attached to part of it. That is a completely different thing to be paying two or three million euros for, and you want to know before the arras, not after.
If the report comes back clean, good, you buy with your eyes open. If it does not, at least you are negotiating from the truth instead of finding out years later, when you apply for a licence to extend and the answer comes back no.
Where we fit
Two doors, and they really are different. A frontline purchase with the coastal check done properly, alongside the rest of the due diligence, is presencial work, and it sits with me at the office. Coastal questions can affect your title. That is not something to run off a template.
If what you actually have is a simple tax obligation, say you already own here and just need your yearly non-resident tax filed, that runs online through Easy210, our own firm's digital tier for exactly that. Same firm behind it, lower touch, fixed price. I would rather point you to the right door than sell you the wrong one.
If you are looking at Les Rotes, or anywhere on the Dénia frontline, send us a message or a WhatsApp and one of us will tell you the next step, and whether that coastal check is worth running before you fall in love with the sea view.
This is general guidance, not personalised legal advice. The coastal position on parts of this coast is being actively reviewed and litigated right now, so let us confirm the exact situation for your specific property before you sign.
Frequently asked questions
How do I know if my Les Rotes property is affected by the Ley de Costas?
You cannot tell from a nota simple. You check the property against the official coastal deslinde maps held by the Servicio Provincial de Costas, cross-referenced with the Land Registry. That is exactly what a coastal report does before a frontline purchase.
Does a nota simple show whether a property is on public maritime domain?
No, and this is the trap. It confirms the registered owner and any charges or mortgages, but it does not reveal how the coastal law affects the land. For that you need the deslinde maps.
How wide is the Ley de Costas protection zone?
There is a 6 metre transit easement along the shore that must stay clear and passable. Behind it runs the protection easement, 100 metres inland from the shore as a general rule, and 20 metres in stretches that were already classed as urban when the law came in. Inside it you own the land, but works need the coastal authority's permission.
What is a deslinde under the coastal law?
It is the official procedure that draws the line between public maritime domain, the protection easement and fully private land for a stretch of coast. Until it is approved for your area, nobody can say with certainty which side of the line your house sits on. Once approved it can still be challenged, through administrative appeal and then the courts.
Is Les Rotes affected by the 2025 Denia deslinde and the expropriations?
The deslinde approved in September 2025 covers north Denia, the strip from Les Deveses toward Les Marines, where several thousand owners face a total or partial loss of rights. Les Rotes is a different stretch with its own delimitation history, but you should still check the current position for Les Rotes itself before buying.
What happens if my house ends up inside the public maritime domain?
It stops being freehold and converts into a temporary State concession, a right to use for a set period rather than full ownership. Affected owners get a window of one year to apply for that concession, and the decision can be challenged through administrative appeal and then the courts.
Should I order a coastal report before buying a frontline villa in Denia?
Yes, and first, not last. It takes a few days, costs little against the price of a frontline villa, and tells you whether you are buying full ownership or a use right with conditions on part of the plot. You want that answer before the arras.
Continue reading
This article is general information, not legal or tax advice for your specific case, and it does not create a lawyer-client relationship. Rules and rates can change. Confirm your own situation with a professional before acting.