Planning

Major works licence: project, documentation and processing

Updated: 2026-08-23

New building under construction with slabs and a crane

Which works require a major works licence

Depending on the case and the municipal ordinance, a licencia de obra mayor (major works licence) is usually required for new construction, extensions, certain renovations, refurbishments, structural interventions and other works subject to licence. Checking which procedure applies to each work is the first step of the job.

What technical documentation the file needs

A major works licence application usually includes:

  • 01Technical project: report, plans and the documentation required according to the works.
  • 02Survey and measurement of the current state, where applicable.
  • 03The works execution budget.
  • 04Property documentation: cadastral reference, title deed and background.

Who grants the licence

The licence is granted or denied by the town hall according to planning regulations, and no technician can guarantee its granting. What does depend on the technical side is that the file goes in complete and well prepared, without errors that cause correction requests and delays.

How long it may take

Timeframes depend on the municipality and the specific file, and it is not prudent to promise dates. The advisable approach is to prepare the documentation with enough lead time and to respond quickly to any technical requirements raised during processing.

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