Buying a new-build property is one of the most important decisions of your life, and it is natural to wonder what happens if something does not work as it should after handover. The good news is that Spanish legislation protects the buyer with a robust guarantee system covering everything from finishes to the building’s structure. Knowing your rights will allow you to buy with the peace of mind you deserve.
The Building Regulations Act: your protective framework
The Building Regulations Act 38/1999 (Ley de Ordenación de la Edificación — LOE) establishes a tiered guarantee system that protects new-build buyers over an extended period. This legal framework defines clear responsibilities for developers, builders and designers, and sets specific coverage periods according to the type of defect.
It is important to understand that these guarantees are neither optional nor negotiable: they apply automatically by law to every new-build property in Spain. The developer is obliged to respond to any defect that appears within the established deadlines, regardless of what the purchase contract may or may not say.
This protection system is one of the strongest arguments in favour of new builds over resale properties, where legal guarantees are significantly fewer and hidden problems are harder to claim.
The three guarantee levels: deadlines and coverage
The LOE establishes three guarantee levels, each with a different period depending on the severity of the defect. Understanding this structure will help you know exactly what you can claim and for how long.
One-year guarantee: finishes and completion elements. This covers defects in cladding, paintwork, interior joinery, sanitary ware, taps and all visible finishes. If a tile comes loose, a door does not close properly or the paintwork is defective, you have twelve months from handover to notify the developer.
Three-year guarantee: habitability and installations. This guarantee covers defects affecting the property’s habitability conditions. It includes problems with waterproofing (leaks, damp), thermal and acoustic insulation, electrical and plumbing installations, and any element that compromises the normal use of the property. In practice, this is the most frequently activated guarantee.
Ten-year guarantee: structural stability. This covers defects affecting the foundations, supports, beams, floor slabs and load-bearing walls. Any problem compromising the building’s mechanical resistance or stability is protected for a full decade. Although such defects are uncommon in quality construction, the guarantee exists as a safety net.
Guarantees by law: 1 year for finishes, 3 years for habitability and installations, and 10 years for structure. These periods are counted from the date of works reception or, failing that, from the date of key handover to the buyer. Always keep the handover certificate as your reference document.
The ten-year insurance: an additional mandatory protection
In addition to the developer’s direct guarantees, legislation requires the purchase of ten-year insurance covering material damage caused by structural defects for ten years. This insurance is mandatory for residential buildings and acts as an independent financial guarantee.
The ten-year insurance protects the buyer even if the developer disappears or becomes insolvent. The insurance company responds directly to the owner, providing an additional layer of security that does not exist when buying resale property.
When signing the deed of sale, verify that the developer provides you with the ten-year insurance policy along with the rest of the documentation. It is a document you should keep for the entire life of the guarantee and will need in the event of a claim.
If you are weighing up the advantages of new builds, we recommend consulting our article on buying an apartment or house in Mallorca, where we analyse the different property formats available in the east of the island.
How to act if you detect a defect
Detecting a defect does not have to become a stressful experience if you follow the right steps. The first thing is to document the problem with photographs, videos and a detailed written description. Include the date you detected the defect and the affected room.
Next, notify the developer in writing with proof of receipt. An email with read confirmation or a registered letter (burofax) are the most advisable channels. Describe the problem clearly and request a specific repair deadline.
The developer is obliged to repair the defect within a reasonable period. If there is no response or compliance, you can file a formal complaint through the municipal consumer office or, as a last resort, take legal action. In practice, most reputable developers resolve issues swiftly, as their professional image depends on it.
Frequently asked questions about new-build guarantees
How many years of guarantee does a new-build property have in Spain?
New-build properties in Spain have three guarantee levels: one year for finishes, three years for habitability and installation defects, and ten years for structural problems. These periods are established by the Building Regulations Act (LOE) and apply automatically. The deadlines begin from the date of property handover.
What exactly does the three-year guarantee cover?
The three-year guarantee covers all defects affecting the property’s habitability: leaks, damp, thermal or acoustic insulation problems, electrical or plumbing failures, and any element that prevents normal use of the property. It is the most frequently activated guarantee in practice and covers essential aspects of daily comfort.
What is ten-year insurance and why is it important?
Ten-year insurance is a mandatory insurance policy covering material damage caused by structural defects for ten years. Its importance lies in protecting the buyer even if the developer disappears or becomes insolvent, as the insurance company responds directly. Verify that you receive the policy when signing the deed.
What do I do if the developer does not repair a defect under guarantee?
If the developer does not respond to your written claim within a reasonable period, you can contact the municipal consumer office to file a formal complaint. You can also resort to mediation or, as a last resort, legal proceedings. It is essential to have documented the defect with photographs and to have notified the issue in writing with proof of receipt from the outset.
Do new-build guarantees also apply to foreign buyers in Mallorca?
The LOE guarantees apply to every new-build property in Spain, regardless of the buyer’s nationality. If you purchase a new-build property in eastern Mallorca as a non-resident, you have exactly the same guarantee rights as a Spanish buyer. Important: Consult your legal adviser to understand the specific claims procedures if you reside in another country.