Do you need a property survey before buying in Spain? Spain has no compulsory survey culture like the UK, so no one will arrange one for you — but you can, and for an older or rural property you should. An independent building survey by a Spanish arquitecto técnico (aparejador) checks the physical condition — structure, damp, subsidence, unregistered extensions — while your lawyer runs the separate legal checks. The two together are what protect you.
Reviewed by María Luisa de Castro, abogada (ICA Cádiz nº 2745) — CostaLuz Lawyers has guided international buyers through Spanish purchases since 2006.
The mistake many foreign buyers make is assuming the notary or the estate agent verifies the building’s condition. They do not. The notary confirms the legal act of sale; the agent works for the seller. A physical survey is optional in Spain and entirely your choice — which is exactly why skipping it on a 40-year-old villa or a rural finca is a false economy.
Two separate checks — do both
- The physical survey. A licensed arquitecto técnico inspects structure, roof, damp, cracks, installations and whether extensions were built to code — the equivalent of a UK building survey.
- The legal due diligence. Your lawyer reads the nota simple, checks the Cadastre, planning status and licences, and confirms there are no charges — a document check, not a physical one.
- Unregistered or illegal works. A survey often catches an extension or pool that never got a licence; your lawyer then confirms whether it can be regularised, which affects value and resale.
- When it matters most. Older properties, rural fincas, anything with visible cracks or a recent extension — and any purchase where you cannot inspect in person.
A survey fits early in the conveyancing timeline — ideally before you sign the reservation or pay a deposit, so any defect it finds becomes a negotiating point rather than a regret. For a new-build, the first-occupation licence and snagging matter more than a structural survey.
Buying an older or rural property in Spain?
Email marialuisa@costaluzlawyers.es and we will run the legal due diligence and tell you when an independent survey is worth commissioning — free written analysis. Clients since 2006; see our Google reviews.
Frequently asked questions
Are property surveys mandatory in Spain?
No. Unlike some countries, Spain does not require a survey to buy. It is optional and arranged by the buyer, but strongly advisable for older or rural properties.
Who carries out a building survey in Spain?
An independent arquitecto técnico (aparejador) or architect. They inspect the physical condition of the property, separately from the legal checks your lawyer performs.
Is a survey the same as the legal due diligence?
No. A survey checks the building’s physical condition; the legal due diligence checks ownership, charges, planning and licences via the nota simple and Cadastre. You need both.
This article is general information, not definitive legal advice — every property differs. Reviewed by María Luisa de Castro, abogada (ICA Cádiz nº 2745).
If a defect is found after you have bought rather than before, read what to do if you find a hidden defect after buying.
A structural survey is one part of pre-purchase due diligence — see our complete legal guide to property investment due diligence for the rest.
A structural survey is one part of a wider process — see the full checklist of what to inspect before buying in Spain.
This content has been prepared with the assistance of artificial intelligence and reviewed by María Luisa de Castro, a lawyer specialising in Real Estate Law and founder of CostaLuz Lawyers.
The information provided is general and indicative in nature. It should not be used as the sole basis for making professional, legal or investment decisions, and CostaLuz Lawyers assumes no responsibility for decisions taken solely on the basis of this content.
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