Spanish Property Survey: What to Expect and Why It's Different from the UK

The Big Difference: Spain Has No Standard Survey Requirement

In the UK, virtually every property buyer commissions a survey — whether it's a basic HomeBuyer Report, a full Building Survey, or at minimum the mortgage lender's valuation. The Royal Institution of Chartered Surveyors (RICS) sets standards, and the process is well-understood by buyers, lenders, and solicitors alike.

Spain is completely different. There is no legal requirement for a buyer to commission a survey before purchasing a property. There is no Spanish equivalent of RICS. Most Spanish buyers don't get surveys at all — it's simply not part of the culture. Spanish mortgage lenders will send a valuer (tasador) to confirm the property's value for lending purposes, but this is not a structural survey. The tasador checks the property exists, measures it, compares it to similar sales, and produces a valuation. They won't check the roof timbers, test the electrics, or look for subsidence.

This cultural difference puts the burden squarely on UK buyers to protect themselves. And given that many properties in Spain — particularly in rural areas and along the coast — have issues with damp, poor construction, illegal extensions, or dodgy electrics, a proper survey is money very well spent.

What Is a Peritación?

The Spanish term for a property survey or expert report is peritación, and the surveyor or expert is a perito. However, this term covers a wide range of reports, from a simple visual inspection to a full technical assessment. There's no standardised format like the UK's RICS Level 2 or Level 3 surveys.

What you want is an informe técnico (technical report) or informe pericial (expert report) carried out by a qualified professional — typically an architect (arquitecto), technical architect (aparejador or arquitecto técnico), or civil engineer (ingeniero civil). These professionals are regulated by their respective professional colleges (colegios profesionales) and carry professional indemnity insurance.

A good technical report for a UK buyer should cover:

• Structural integrity: Foundations, load-bearing walls, beams, columns, roof structure
• Damp and humidity: Rising damp, penetrating damp, condensation — extremely common in Spanish properties, particularly near the coast
• Roof condition: Tiles, flat roof waterproofing, terraces above living spaces
• Electrics: Whether the installation meets current regulations (ITC-BT), capacity of the supply, condition of wiring
• Plumbing: Pipe condition, water pressure, hot water system, drainage
• Illegal extensions or modifications: Anything built without a licence (very common in Spain)
• Pool condition (if applicable): Structure, pump, filtration, safety compliance
• Energy efficiency: Insulation, window quality, heating/cooling systems

Hiring an Independent Surveyor

Finding the right professional is key. Here are your options:

Spanish Architect or Technical Architect

This is the most common choice for a thorough survey in Spain. Technical architects (aparejadores) are specifically trained in building construction and are often the best choice for a structural assessment. Full architects (arquitectos) can also carry out surveys and may be preferable if you're planning renovations, as they can advise on possibilities and costs simultaneously.

To find one, ask your lawyer for a recommendation, or contact the local Colegio de Arquitectos (architects' college). Many in coastal areas speak English and are experienced with British buyers.

RICS-Qualified Surveyor in Spain

There are a small number of RICS-qualified chartered surveyors operating in Spain, mostly along the costas. They'll produce reports in the format UK buyers are familiar with. The advantage is a report you can read and understand easily, with clear risk ratings. The disadvantage is they're fewer in number, often more expensive, and may not be available in all areas.

RICS has a "Find a Surveyor" tool on their website where you can search for members in Spain. Expect to pay a premium of 20-30% over a local architect for the familiar format.

UK Survey Companies with Spanish Operations

Several UK-based firms offer property surveys in Spain, typically using a network of local architects and engineers supervised by a UK-based project manager. They produce reports in English in a format similar to UK surveys. Companies like Survey Spain and Spanish Property Survey have been operating for years. They charge more (€500-€1,000+) but provide a UK-standard service.

What It Costs

Survey costs in Spain depend on the property size, location, and the level of detail you need:

• Basic visual inspection with written report: €300-€500 — covers a walk-through with a written summary of obvious defects and concerns. Suitable for modern apartments in good condition
• Full technical survey (informe técnico): €500-€800 — comprehensive inspection including roof access, checking electrics and plumbing, damp readings, and assessment of structural elements. Recommended for villas, older properties, and rural fincas
• Specialist surveys: €200-€400 each for additional checks like a pool structural assessment, termite inspection, asbestos survey, or detailed electrical certification
• RICS-style survey from a UK-based firm: €600-€1,200 depending on property value and size

On a €300,000 purchase, a €500-€800 survey is less than 0.3% of the price. Consider it the cheapest insurance you'll ever buy. One hidden structural problem could cost tens of thousands to fix.

What to Check: The Critical Issues

Structure and Foundations

Look for cracks in walls — not just cosmetic plaster cracks, but structural cracks in concrete or masonry. Diagonal cracks, stepped cracks in brickwork, and cracks wider than 5mm are serious. In areas with expansive clay soils (common in parts of the Costa Blanca and Murcia), subsidence is a real risk. Your surveyor should check for movement and advise whether monitoring or underpinning is needed.

Humidity and Damp

This is the single most common problem in Spanish properties, particularly along the coast. The combination of Mediterranean humidity, poor ventilation, inadequate damp-proof courses (many Spanish buildings don't have one), and flat roofs creates a perfect environment for damp. Look for:

• Rising damp on ground-floor walls (tide marks, salt deposits, peeling paint)
• Penetrating damp around windows and on exterior walls
• Condensation and mould in bathrooms and kitchens (often masked by a fresh coat of paint before viewings)
• Damp patches on ceilings under flat roof terraces — a very common and expensive problem

Electrics

Many older Spanish properties (pre-2000) have outdated electrical installations that don't meet current ITC-BT regulations. Common issues include insufficient capacity (older properties may have 3.3kW or 4.4kW when modern living needs 5.75kW or higher), aluminium wiring (a fire risk), lack of earth connections, no RCD (differential) protection, and exposed wiring. A full rewire of a 3-bedroom villa typically costs €3,000-€8,000.

Plumbing

Check for polybutylene pipes (grey plastic, common in 1980s-90s builds) which are prone to failure. Galvanised steel pipes in older properties will eventually corrode. Water pressure issues are common in hilltop or rural locations. Septic tanks (fosas sépticas) in rural properties need inspection and may need upgrading to meet current environmental regulations.

Illegal Extensions and Builds

This is a major issue in Spain, particularly in Andalusia, Valencia, and Murcia. Thousands of properties have extensions, converted garages, enclosed terraces, or even entire buildings constructed without proper planning permission (licencia de obras). If you buy a property with an illegal extension:

• You inherit the legal problem
• The town hall could order demolition (rare but possible, especially if a neighbour complains)
• You can't insure the illegal part
• The extra square metres won't appear on the escritura, potentially causing problems when you sell
• In Andalusia, the AFO process (Asimilado a Fuera de Ordenación) can regularise old illegal builds — see our due diligence guide

When a Survey Is Essential

While we'd recommend a survey for any property purchase, there are situations where skipping one would be genuinely reckless:

• Properties built before 1980: Construction standards were minimal. Foundations, concrete quality, and structural design may be inadequate by modern standards
• Rural fincas and country houses: Often built incrementally over decades with mixed construction methods, no plans on file, and a high likelihood of unpermitted work
• Properties with swimming pools: Pool structural failure is expensive (€15,000-€30,000+ to rebuild). A pool survey checks the shell, waterproofing, pump, and filtration
• Flat-roofed properties: Spanish flat roofs (terrazas) are notorious for leaks. Waterproof membrane failure is common after 10-15 years
• Properties that have been empty: Unoccupied properties deteriorate quickly in the Spanish climate. Expect plumbing issues, damp, and pest problems
• Renovated properties: Cosmetic renovation can hide structural problems. Fresh paint, new tiles, and modern kitchens don't mean the building underneath is sound

Bottom line: A survey in Spain is not mandatory, but as a UK buyer spending hundreds of thousands of euros on a property in a foreign country with different building standards, getting an independent professional assessment is simply common sense. The few hundred euros it costs could save you from a very expensive mistake.

What to Do with the Survey Results

Once you have your survey report, you have several options depending on what it reveals:

• Clean bill of health: Proceed with the purchase confidently, knowing the property is structurally sound. Minor cosmetic issues (hairline cracks, minor damp patches) are normal in older Spanish properties and shouldn't deter you
• Minor issues (€1,000-€5,000 to fix): Use the survey findings to negotiate a price reduction from the seller. Sellers will sometimes reduce the price by the estimated repair cost, or agree to carry out repairs before completion
• Major issues (€5,000-€20,000+): Consider whether the property is still worth buying at the agreed price. Renegotiate significantly, or walk away. Your lawyer can advise on whether issues discovered during due diligence allow you to withdraw from the reservation or arras contract with a refund
• Deal-breakers (structural failure, illegal build on protected land, asbestos): Walk away. Some problems are too expensive or legally complex to resolve. Better to lose a reservation fee than inherit a €50,000+ problem

A good surveyor will not only identify problems but estimate repair costs and prioritise urgency. This gives you concrete numbers for negotiation and helps you budget accurately for any post-purchase works. Remember that all renovation costs should be documented with proper invoices (facturas) — these are deductible from your capital gains tax liability if you later sell the property.