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Date Published: 27/04/2026

Thinking of installing air con in Spain? Why you may need permission first

Horizontal Property Law rules mean you cannot always place units where you like in shared buildings

As temperatures rise across Spain, many homeowners start thinking about installing air conditioning. But in apartment blocks and urbanisations, it is not as simple as choosing a spot and getting it fitted.

The key issue comes down to Spain’s Horizontal Property Law, which governs how shared buildings are managed and what individual owners can and cannot do.

Put simply, you cannot install an air conditioning unit on a building façade without permission in many cases, because it is considered a shared element.

Under Article 7 of the law, homeowners are free to make changes inside their property, but only up to a point. If those changes affect the structure, appearance or shared parts of the building, it becomes a matter for the Community of Owners.

This is where many people get caught out. The façade, even if it surrounds your home, does not belong to you alone. Any visible installation, such as an external air conditioning unit, can be seen as altering the building’s appearance or impacting other residents.

This reflects the broader principle that communal areas are jointly owned and managed, and individual changes must respect the wider community rules.

So when is it allowed?

There are some situations where installing air conditioning may not require formal approval, provided strict conditions are met:

The unit is placed in a private-use space such as a terrace or patio
It does not affect the building’s external appearance
It does not interfere with shared elements
It does not cause disturbance to neighbours

Even then, it is often advisable to inform the community in advance to avoid disputes.

If installation on the façade or another visible area is unavoidable, the correct route is to request permission. This usually involves presenting a proposal to the Community of Owners, explaining where the unit will go and how it will affect the building. The decision is then voted on.

Skipping this step can have consequences. Communities have the right to:

Demand removal of the unit
Take legal action
Claim costs for any damage
Pass legal expenses onto the homeowner

In many cases, courts side with the community, particularly where the building’s appearance or shared structure is affected.

For those looking to stay within the rules, there are alternatives. Portable units, discreet split systems or installations in less visible areas such as rooftops or interior courtyards can often provide a solution without causing conflict.

Ultimately, the law is designed to balance individual comfort with shared living. As frustrating as it may feel in the middle of summer, following the proper process can save time, money and neighbourly disagreements in the long run.

For homeowners in the Region of Murcia looking for professional advice, MB Services has been providing air conditioning installation, pre-installation and maintenance across the Costa Cálida since 2007. Known for their expertise in pre-installed and multi-split systems, they offer tailored solutions designed to meet both legal requirements and practical needs, helping residents stay cool while staying compliant.

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San Javier, Murcia, Spain

Mobile: 0034 615 356 289

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Established in 2007, MB Services is a well trusted Air Conditioning installation expert in the Costa Cálida

MB Services for specialist air conditioning pre-installation and maintenance in the Costa Cálida

Michael Bowins at MB Services has been established as a most reliable and professional air conditioning service provider in the Costa Cálida since 2007, offering expertise, experience and affordable rates in air conditioning installation, pre-installation and maintenance for homeowners in the Region of Murcia.

MB Services specialise in air conditioning installation and maintenance, and specifically in pre-installation installs and multi-split systems.

They are specialists in Pre-installed Systems, which many of the larger companies do not offer. This is especially important for homes on the older Murcia urbanisations, and expats living in these resort areas trust MB Services for this highly specialised and professional service.

They also pride themselves on service and working to the highest standards using the best quality materials.

Various customers reviews on platforms such as Google search and Facebook show the standard they strive to achieve, and their many satisfied customers.

Contact MB Services now for your free estimate and quote, and rest in the knowledge that your air conditioning and home maintenance are in the hands of the professionals!