Minor or major works permit: what the difference means for a renovation

Before quoting a renovation, it's worth clarifying to the client what type of permit is needed, because the procedure determines both the start date of the work and the administrative cost of the project.

Minor works: a quicker procedure

Minor works are those that don't affect structural elements or change the essential layout of the home: finish changes, replacing installations without altering their main route, or bathroom and kitchen renovations without touching the structure. The procedure is usually resolved with a prior notification or simplified permit, with short processing times.

Major works: when there are structural changes

Works are considered major when there is a change to the structure (opening gaps in load-bearing walls, extending floor area), substantial layout changes affecting several rooms, or interventions requiring a technical project signed by an architect. The procedure is longer and may require site supervision during execution.

Why you shouldn't "start without waiting for the permit"

Starting work that requires a permit before it has been granted exposes the client to a penalty and, in the worst case, to the obligation to undo what has been done. Even if it means waiting, making clear in the quote that work won't start until the relevant permit is in hand protects both the client and the professional.

Need to quote a renovation taking its procedures into account? Do it in PresupuestoYa.