Renovation & construction
Llicència d'obres majors: when you need one, and when not
In Barcelona, a full licence (llicència) is only needed for obres majors, the largest-scale works. Lighter works go through notification, comunicat or assabentat, not a "menors licence", which does not exist.
A full licence (llicència) in Barcelona is not needed for every renovation, only for obres majors, the largest-scale interventions. Everything lighter is not licensed at all: it goes through one of the notification regimes, comunicat or assabentat. Confusing the two is a common reason investors get a project's timeline wrong.
When a licence is unavoidable: llicència d'obres majors
Barcelona's municipal regulation (ORPIMO) classifies as obres majors new construction, major refurbishment of an entire building, an increase in volume or in the number of dwellings, a change to a building's principal use, work on the foundations or the structure of the building as a whole, installing a lift on the outside of a building, and work on the façade of a heritage-protected building. That scale of work needs a full project signed by an architect, and review stretches out over months.
Everything else is not a licence, it's a notification
Works that don't fall under majors are split by the regulation into several notification regimes, but there is no licence here at all: llicència d'obres menors doesn't exist as a stand-alone document. Comunicat diferit, where the municipality reviews the paperwork for about a month and requires an IIT report, is what covers, for example, a partial intervention in load-bearing elements. Comunicat immediat, where the fee is paid before work starts and it can begin right after payment, is what covers, for example, a layout change in a single flat that doesn't touch the building's structure. Assabentat, the lightest regime, is just a notification with no paperwork, and work can start the next day; it applies to buildings with no heritage protection when the works don't touch the structure, the façade or the room layout at all. A full breakdown of all the regimes, with the official timeframes, is in our article Renovation permits in Barcelona.
Why the difference is critical for the project timeline
Notification regimes can be closed out in days, weeks at most. Majors needs a full architect's project, and review stretches out over months, especially if the building is on the register of protected heritage in central Barcelona. Misjudging the scale of the works when the budget is being planned is a common reason a project ends up taking twice as long as expected.
How to establish the category in advance
The category depends on the objective scale of the intervention under the municipal regulations, not on what the investor would prefer. To know it before you buy, consult an architect or building surveyor during due diligence, before you sign the arras contract: they will tell you which category and which regime the planned renovation falls under.
Where it fits in the project numbers
Every month spent waiting for a majors licence costs either interest on borrowed money or the return the capital could have earned elsewhere. At DNPI Capital we build the expected approval regime into the project budget at the planning stage, rather than finding it out when the application goes in. More on this in our article on the full project budget.
Questions and answers
Can works begin while a majors licence is still under review?
As a rule, no. Works that require a majors licence cannot begin until it has been granted. Without a licence, the project risks a fine and an enforced stoppage, and for an investment project that is critical.
Who decides whether a majors licence is needed or a notification is enough: the investor or the municipality?
Formally, the municipality classifies the works on the basis of the project or notification submitted. An experienced architect can usually predict the regime with a high degree of accuracy before any documents are filed.