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Ten-year structural warranty on Spanish new builds

By Daniel WhitcombeReviewed by Marta Calderón IbáñezPublished Updated Stage 1: Decide

Quick answer

Housing must carry a ten-year structural guarantee, and the developer is the policyholder. Liability periods of one, three and ten years run from acceptance of the works for different kinds of defect. Ask for the policy, check what it covers and keep it with your deed.

Applies toBuyers of new homes from a developer, including off-plan buyers. It does not apply to ordinary resale, where the seller's liability for hidden defects applies.

On this page: 7 sections
  1. The rule in outline
  2. Three periods, three kinds of defect
  3. What to ask for
  4. Using the guarantee
  5. What it does not do
  6. Where this fits
  7. A calendar entry worth making
Checked 26 October 2026by Marta Calderón Ibáñez. Claims on this page are tied to the sources listed at the end.

§ 1The rule in outline

The building law of 1999 sets the liability of those who build, and it requires a ten-year guarantee for structural damage in housing. The developer is the policyholder. For the buyer, the effect is that the cost of serious structural defects is not left to the developer's finances alone, because an insurer stands behind the guarantee.

§ 2Three periods, three kinds of defect

The law sets three periods, counted from acceptance of the works. A one-year period covers finishing defects. A three-year period covers defects that affect habitability. A ten-year period covers damage to the structure. The distinction matters because a complaint must be made within the right period, and because the type of defect decides who is liable and how.

The date of acceptance is therefore a date to record. It appears in the documents of completion, and it is the starting point for each period.

§ 3What to ask for

Ask the developer for the policy, the name of the insurer and the date the cover starts. Check that the policy names the building and covers the units in it. Keep a copy with your deed, and note the dates in a calendar. If you buy a home that is more than a few years old, ask how much of the period is left.

§ 4Using the guarantee

If a defect appears, record it in writing with photographs and dates. Notify the developer and, where the policy requires, the insurer. Take legal advice early, since the policy and the law set conditions and time limits. A guarantee is only as useful as your ability to prove a claim, so a good record is as important as the policy itself.

§ 5What it does not do

The guarantee does not make the building perfect. Minor defects fall under the shorter periods or not at all, and wear and maintenance are the owner's responsibility. It also does not replace the handover inspection, where most of the practical defects should be found and recorded. The warranty is a safety net for serious problems, not a substitute for care.

§ 6Where this fits

For the day you receive the home, snagging checks explains what to look for, and the new-build route describes the purchase.

The protection for payments before completion is explained in the guarantee rules for off-plan, and off-plan buying explained describes that route.

If the developer fails, insolvency of the developer covers what then happens, and buying into a cooperative describes another way to get a new home.

A resale has no such cover, as the resale route explains, and new build and resale side by side compares the two.

§ 7A calendar entry worth making

When you receive the keys, note three dates in your calendar: the end of the first year, the end of the third year and the end of the tenth, counted from acceptance of the works. Review the home before each of the first two dates and report any defect in writing. The reminders cost nothing, and they protect rights that are easy to lose by simple delay.

FAQRelated questions

Who pays for the ten-year insurance?

The law makes the developer the policyholder, and the cost is normally part of the price of the new home. Ask the developer to name the insurer and give you a copy of the policy, so you know what it covers before you sign.

What does the ten-year cover include?

It is aimed at damage to the structure of the building that threatens its stability. Finishing and habitability defects fall under shorter periods. Read the policy and the building law summary with your lawyer to see how your home is covered.

Does a resale home have this guarantee?

The guarantee attaches to the new building and may still be running when the home is resold, but you should ask for the policy and dates. Do not assume it applies, and check how long is left.

Sources

About this page

Written by

Daniel Whitcombe

Writer, buying and living in Spain

Daniel writes the chapters on how a purchase runs, who can buy, where to buy and how to check a location. He writes for readers who are new to the Spanish system and prefers plain explanations that name the official source. He is not a lawyer or adviser.

Reviewed by Marta Calderón Ibáñez, chief editor and source editor, 26 October 2026. Checked: Figures and rules checked against the official texts listed in the sources

Found an error? Report it. Each report gets a dated reply, and confirmed corrections are logged on the updates page.

Legal note. How the process works in general. It is not legal advice, and it never replaces an independent Spanish lawyer acting for you.