Minor works, major works and responsible declaration: the difference in Málaga
One of the most frequent questions we receive is: what type of licence do I need for this work? The answer depends on many factors, but there is a clear structure worth knowing to avoid errors that can prove very costly.
Why correct classification matters
Starting work without the appropriate licence — or with a licence of a lower category than required — exposes the owner to a stop-works order, the obligation to demolish what has been built, and financial penalties. In Málaga, the Urban Discipline Service of the City Council is active, particularly in the historic centre and in protected areas.
Understanding which category applies to each intervention is not merely a bureaucratic formality: it is the difference between doing things correctly from the outset or having to undo the work later.
Minor works: simple tasks with no structural impact
Minor works cover interventions of limited constructive scope and technical simplicity that do not affect the building's structure, do not modify the layout of communal spaces, and do not alter the building's volume or use. In practical terms, these include:
- Painting internal and external walls (provided it is not a protected façade)
- Replacing interior flooring
- Tiling bathrooms and kitchens without moving installations
- Replacing interior joinery
- Spot repairs to the roof without modifying slopes or structure
For minor works, Málaga City Council generally requires a prior notification or a minor licence, depending on the local ordinance. The resolution period is much shorter than for major works, and in many cases an architect's signature is not required — though it is always advisable for works involving services.
Responsible declaration: the intermediate route
The responsible declaration is a relatively recent figure in Spanish regulations (introduced by Law 17/2009 and developed by regional planning legislation), which allows the owner to declare that they know and comply with the applicable regulations, without waiting for prior administrative verification. It is more agile than a classic licence, but does not eliminate the owner's responsibility.
It typically applies to works such as:
- Replacing external windows or doors with elements of similar characteristics
- Installing lightweight non-structural partitions that do not modify the use or general layout
- Energy-efficiency façade renovation without change of external finish in non-protected areas
- Installing HVAC systems with visible external units
The responsible declaration allows work to start on the same day it is submitted to the City Council, without waiting for an explicit resolution. However, if the declaration is incorrect or the works do not match what was declared, the council can order an immediate stop.
Major works: when the architect comes in
Any intervention involving structural alteration, volume modification, change of use, new construction or demolition requires a major building licence. This is the category Santos Arquitectos typically works in: new-build single-family homes, extensions, comprehensive renovations with structural impact, building rehabilitation and change of use from commercial to residential or vice versa.
The major works licence requires a complete technical project — certified by the College of Architects — signed by an architect and, where applicable, a quantity surveyor. The application is processed through Málaga's Urban Management Agency and the legal resolution period is three months, though in practice it can take longer depending on the complexity of the file and the service's workload.
Building without the correct licence is not just an administrative infringement: it can mean demolishing at your own cost what you have built, even if the work is technically perfectly executed.
What many people think is minor works but is not
This is the highest-risk area. The following works are often started without the appropriate licence, either through ignorance or incorrect advice:
- Swimming pools: building a pool on a private plot — even a small one — requires a major works licence in most Costa del Sol municipalities.
- Roof terraces: creating a walkable terrace on a roof where none previously existed modifies the building's volume and requires a project.
- Glazing terraces and porches: glazing a terrace or enclosing an existing porch adds built floor area and may require a major licence, particularly in properties with shared ownership (which also requires community consent).
- Garages: converting a non-habitable space into a garage, or opening a vehicle access in the façade, requires a major licence.
- Removing load-bearing walls: even when integrated into an interior renovation, removing a load-bearing wall is a structural intervention that requires an architect's project.
Summary table: intervention types and documentation
| Type | Examples | Documentation | Technical signature |
|---|---|---|---|
| Minor works | Painting, flooring, tiling, interior joinery | Prior notification or minor licence | Not mandatory (recommended) |
| Responsible declaration | Window replacement, lightweight partitions, HVAC | Responsible declaration form + basic technical documentation | Recommended |
| Major works | New build, structural renovation, pool, change of use, extension | Basic + detailed project (certified), report, drawings, budget | Mandatory: architect + quantity surveyor |
Málaga's municipal ordinance and municipal discretion
Málaga City Council's Management, Inspection and Sanctions Ordinance sets the specific procedures for each type of intervention. It is important to know that municipalities have some discretion in classifying works: what is processed as a responsible declaration in Málaga city may require a minor licence in Marbella or Benahavís. We always recommend consulting directly with the relevant council's planning service or with an architect before starting any work.
Unsure what licence you need for your project? Get in touch. At Santos Arquitectos we have been processing licences in the province of Málaga for over 65 years and know the procedures of the main Costa del Sol councils inside out.
