Three procedures, depending on the scope
In Barcelona the permit to renovate isn't a single thing: it depends on what you touch. A minor-works notice (comunicat) for minor works that don't affect structure, layout, façade or communal installations — changing floors, painting, tiling, swapping a bathroom on the same connections. A responsible declaration for minor works with a bit more substance, where you declare you meet the rules and can start after filing. A major-works licence for anything affecting structure (opening or reinforcing a load-bearing wall), changing the layout, altering the façade or changing the use of a commercial unit to housing: it needs a stamped technical project and the council's resolution before you start.
Which procedure each renovation needs
| Type of work | Procedure | Project? | Start |
| Paint, floors, tiling, bathroom on same connections | Minor-works notice | No | Immediate |
| Kitchen or bathroom with changed installations | Responsible declaration | No (memo) | Near-immediate |
| Changing the layout (moving partitions) | Licence / declaration | Yes, technical | After filing |
| Opening/reinforcing a load-bearing wall | Major works | Yes, stamped | After resolution |
| Change of use (commercial to housing), façade | Major works | Yes, stamped | After resolution |
The ICIO tax and fees: what to budget for
The main fiscal cost of any licence is the ICIO (tax on construction, installations and works), which in Barcelona is around 3.5-4% of the material execution budget. On top of that is the file-processing fee — reduced for notices, higher for major-works licences. For major works you also add the fees for the technical project and the professional stamp. Budget these from the start: they're part of the real cost of the renovation, not extras.
Old Eixample and Gràcia buildings: mind the structure
In pre-1940 buildings many internal walls are load-bearing and the floor rests on Catalan vaulting. What in a modern flat would be a simple partition can here be structural — and opening it turns your renovation into major works with a project and licence. So in an apartment renovation or a major renovation in these buildings, the first step is the technical inspection that defines which procedure applies. Misjudging the scope is the most common cause of trouble with the council.
How we handle it for you
On a turnkey renovation we take care of the whole procedure: we define which licence applies, prepare the documentation, file the application with the council and coordinate the technical project when needed. You don't chase paperwork. At the end, we handle the completion certificate — what later lets you obtain the habitability certificate. English-speaking team throughout. For larger projects, a dedicated lead is assigned.
