What owners wish they'd known before demolishing in Spain

'I thought the contractor would handle the permit'

This is the single most common surprise. In Spain the demolition contractor carries out the works; it does not draft the project, sign technical documents or file the procedure. The owner files the declaración responsable or licence with the ayuntamiento, and the technical documentation is drafted and signed by a técnico competente.

In Andalusia, demolishing a building without heritage protection has been processed by declaración responsable since 2024, which is simpler than the old licence route but still needs a proper file. Owners who start looking for an architect only after choosing a contractor often lose weeks. Find the técnico first, or at the same time. Our guide on who signs a demolition project and when you need one explains what they prepare.

'Nobody told me the uralita had to go first'

Many owners know their old roof or water tank is uralita but assume it will simply come down with everything else. It cannot. Asbestos-containing materials may only be removed by a company registered in the RERA, under a work plan approved by the provincial labour authority, and the asbestos waste is hazardous and may not be mixed with other rubble. The current rule for asbestos work is Real Decreto 847/2026, which replaced Real Decreto 396/2006.

In practice that means one more stage at the start of the job and its own paperwork. On our jobs, a RERA-registered company working as our subcontractor prepares the work plan and removes the material; we coordinate the rest of the demolition. Our sister site on uralita removal explains what to look for on your property.

'The skip needed its own permission'

On many plots on the Costa del Sol there is no room for a skip or a machine inside the property, so it stands in the street for a while. Occupying the public road with a skip, container, scaffolding or machinery needs authorisation from the ayuntamiento. Some town halls, Benalmádena among them, state this explicitly in their ordinances, and others such as Mijas require prior authorisation for works that affect the public road.

This permission is separate from the demolition procedure and is usually arranged before the start. If your street is narrow, ask early how loading will work; photos of the street in both directions help the contractor plan it.

'I didn't realise I would need the waste receipts'

Owners tend to think about rubble only as something to get rid of. Two rules make the paperwork around it important. First, since January 2024 demolition must be selective, and waste must be sorted into the fractions listed in Ley 7/2022. Second, the town hall usually requires a deposit or guarantee for construction and demolition waste when the works are processed, and returns it once you prove delivery to an authorised manager.

The proof is the delivery receipts. On our jobs, each fraction goes to an authorised facility and the receipts are handed to you. Keep them with the rest of the property documents. Our sister site explains the deposit in more depth in waste deposits in Andalusia.

'The empty plot still had obligations'

Once the building has gone, the plot does not become free of duties. Owners must keep solares clean and safe; if they do not, the town hall can order the clearing and carry it out at the owner's expense, as the ordinances of Málaga and Mijas, for example, provide. In Andalusia, land within 400 metres of forest areas is in the Zona de Influencia Forestal, with fire-prevention duties of its own.

For an owner abroad, that means planning what happens between the demolition and the start of the new build. If the scope includes removing the remaining debris and basic levelling after the demolition, agree it in writing. For the fire-prevention side, our sister site covers plot clearing and fire prevention on the Costa del Sol.

'The neighbours and the community mattered more than I expected'

Owners abroad are often surprised by how much a neighbour's goodwill shapes a demolition. Noise and dust are controlled with method – water spraying, manual work near the boundary, sensible working hours – but they cannot be eliminated. A short message to the neighbours before the start, explaining dates and what to expect, prevents most complaints.

In buildings under propiedad horizontal the community is more than goodwill. Under Ley 49/1960 the community must be informed before walls, structure or façade elements are demolished, and works affecting common elements need the owners' meeting agreement. Talk to the administrator before you set dates.

Party walls are the other surprise. In semi-detached and terraced houses the wall you share with the neighbour usually stays, and the work next to it is slower and partly manual. Photographing the neighbour's side before the start, with their permission, avoids arguments later about cracks that were already there.

'I should have planned the sequence, not just the price'

Looking back, many owners say the price was the easy part. The order of the steps is what takes time:

1. Choose a técnico and confirm what can be built afterwards.
2. Check whether the building or its setting is protected.
3. Identify uralita and plan its removal first.
4. Prepare and file the municipal procedure, with the waste deposit if required.
5. Arrange disconnection of services and any public road authorisation.
6. Carry out the demolition with sorting and removal of the rubble.
7. Keep the receipts and keep the plot clean and safe afterwards.

Our page on managing a demolition from abroad shows how we fit into that sequence, and the pages on house and villa demolition and demolition and debris removal describe the works themselves. For a technical walk-through, see demolition step by step.