1. Check that the potential is real
- Layout: can the distribution be improved without touching structure?
- Ceiling height, natural light, ventilation and views
- Facade, orientation and outdoor space
- Quality of the building's structure and common elements
2. Understand the building's constraints
Not everything that is technically possible is permitted. Structural elements, community approval for changes that affect the facade or common areas, and protected elements in older buildings can limit what you can do.
3. Licences and technical project
In Barcelona, works that change the distribution, affect structural elements or touch the facade normally require a communication or licence to the City Council, supported by a technical project signed by an architect or technical architect. Processing takes time, so it should be in your schedule from the start.
4. Build a realistic budget
Costs depend on the age and condition of the building, the scope and the quality of finishes. Build the budget item by item rather than per square metre alone, include the project, licences and fees, and keep a margin for what only appears once walls are opened.
Be cautious with estimates that are far below the others: they often leave items out that appear later as extras.
5. Put the works into the negotiation
If the review shows works the price does not reflect, you have an argument to renegotiate. Ideally the earnest money contract includes conditions that depend on the technical result.
6. Plan the execution
Decide who designs, who manages and who executes. A single team that coordinates design, licences, contractors and supervision reduces delays and disputes, especially if you live abroad.
Consider energy efficiency from the start: insulation, windows and efficient heating systems are easier and cheaper to integrate during a full renovation than afterwards.
Before you buy
A renovation feasibility review takes little time compared with the size of the decision. It tells you what is possible, what it is likely to cost and what to watch for.
This guide is general information, not legal, tax or financial advice. Rules and figures change, so always confirm the details of your case with a qualified lawyer or gestor.