The change from tertiary to residential use is an urban planning and technical procedure whereby a property intended for economic activities—such as offices, practices or commercial premises—is legally converted into housing. This process allows the classification of the property to be changed from tertiary to residential use in compliance with current regulations.
Changing commercial use to residential: complete guide
This is an administrative procedure that involves adapting a space intended for economic activity to convert it into housing. It is not just an interior renovation, but a legal process that requires compliance with technical, urban planning, and registration requirements.
In order for a property to be converted into a dwelling, it must comply with the habitability requirements set forth in municipal regulations and the Technical Building Code (CTE).
When is it possible to make the change?
Not all properties can be converted to residential use. In order for the change from tertiary to residential use to be viable, several requirements must be met:
- That the municipal urban planning regulations allow residential use in that area.
- That the building complies with the minimum conditions of habitability (ventilation, lighting, minimum surfaces, accesses, etc.).
- That there is no limitation on the part of the community of owners (according to the bylaws).
- That the necessary licenses and authorizations are obtained from the City Council.
Step by step process
1. Feasibility study
A competent technician analyzes the urban planning regulations and the conditions of the property to check if the change of use is feasible.
2. Technical project
An architect drafts the change of use project justifying compliance with current regulations, including habitability, accessibility, safety and health.
3. License application
The project is submitted to the corresponding City Hall to request the change of use license and, if applicable, the building permit.
4. Execution of works
Once the license is granted, the necessary works are carried out to adapt the space to housing.
5. Legalization and registration
Upon completion of the work, the certificate of occupancy or first occupancy license is issued and the new use is registered in the Land Registry.
Typical technical requirements
- Minimum clear height requirement.
- Minimum usable area of the dwelling.
- Natural lighting and ventilation.
- Compliance with CTE (structural safety, fire, health, energy efficiency, etc.).
- Independent access or access compatible with residential use.
Advantages of change of use
The change from tertiary to residential use can considerably increase the value of the property, as it broadens its market possibilities. In many cities, this practice has become a strategic alternative to increase the supply of housing without the need to develop new land.
Además, permite dar una segunda vida a locales u oficinas que han quedado obsoletos o vacíos, optimizando el parque inmobiliario existente.
Conclusión
The change from tertiary to residential use is a technical and administrative procedure that requires specialized professional advice. A prior feasibility study and a correct processing are essential to guarantee the success of the process and to avoid legal or urban planning problems.
If you are considering transforming a local or office into a home, having a specialized technical team will allow you to analyze the feasibility and manage the entire process safely.
