Building Permits on the Coast: Real Timelines, Not Just Legal Deadlines

What the legal deadline says
Municipal permit procedures often refer to one month for minor works and around three months for broader cases, depending on regional rules. In coastal areas, that legal benchmark rarely tells the full story.
For major works, earthworks, subdivision or protected land, administrative silence should not be treated as a green light. In many cases it operates negatively.
Why coastal projects take longer
Spain’s Coastal Law adds a decisive approval layer. Inside the protection easement, works may require a binding report from the State Coastal Authority as well as the municipal building permit.
- Two administrations are involved, not one.
- The town hall may need to wait for the Coastal Authority report.
- Silence in protected areas is rarely a practical authorization.
- Administrative delay can change the economics of the project.
Can you start if the town hall does not answer?
In the coastal protection area, starting work without clear authorization is risky. A later negative interpretation can lead to suspension orders, fines, cost overruns and months of delay.
What to check before setting a timeline
- Request the Coastal Authority report before committing to a delivery schedule.
- Check whether the general 100-metre strip applies or whether the 20-metre urban reduction may be valid.
- Distinguish new construction from repair or improvement works.
- Add a real contingency buffer to any coastal administrative schedule.
Frequently Asked Questions
How wide is the coastal protection easement?
Generally 100 metres inland from the maritime-terrestrial public domain; in some urban areas predating 1988 it may be reduced to 20 metres.
Does the municipal deadline include the Coastal Authority report?
Not always. The Coastal Authority has its own process and can condition the municipal decision.
Does a clean registry extract rule out coastal restrictions?
No. Coastal restrictions may not appear in the Land Registry.
Can I refurbish a home inside the protection easement?
Often yes if the building is legal, but authorization is required and increases in volume, height or surface are usually restricted.
Plan with real timelines
At NEXEVO, coastal projects include a Coastal Authority review and a realistic administrative schedule before being presented as investment opportunities.
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