- What the LOE regulates
- The building agents (arts. 8-16)
- The three warranty tiers (art. 17)
- Joint and several liability (art. 17.3)
- Mandatory insurance (art. 19)
- Guarantee of payments on account (AD 1)
- Practical application: how to claim LOE defects
- Territorial scope: Andalucía and Costa del Sol
- FAQ
What the LOE regulates
The Spanish Act 38/1999, of 5 November, on Building (LOE) reorganised civil liability for construction defects in Spain. Before 1999 a scattered system applied between Civil Code arts. 1591 and 1909 (generic decennial liability) and case law. The LOE codifies the regime, makes it predictable and links the periods to delivery.
It applies to buildings for administrative, sanitary, religious, residential, educational, cultural, recreational, commercial, industrial or transport use. It excludes minor works and refurbishments without new structure.
The building agents (arts. 8-16)
The LOE defines eight agents with specific functions and liabilities:
- Developer (art. 9): who decides, promotes, schedules and finances. Jointly and severally liable with the others vis-à-vis the buyer.
- Designer (art. 10): draws the project. Liable for design defects.
- Builder (art. 11): executes the works. Liable for execution defects, materials and supervision.
- Site director (art. 12): technical direction. Liable for correct execution.
- Execution director (art. 13): material control. Liable for quality of materials and correct execution.
- Control entities (art. 14): voluntary quality control.
- Laboratories (art. 15): testing.
- Suppliers (art. 16): liable for products supplied.
The three warranty tiers (art. 17)
The core of the LOE regime is in art. 17:
- 1 year from delivery: execution defects affecting finishing elements (paint, tiling, internal joinery, handles, blinds).
- 3 years from delivery: defects in constructive elements or installations that cause failure of habitability requirements (hygiene, health, noise protection, energy saving, accessibility). Includes damp, insulation, HVAC, electrics, plumbing.
- 10 years from delivery: defects affecting foundations, supports, beams, slabs, load-bearing walls or other structural elements compromising mechanical resistance and stability.
These are warranty periods, not limitation periods. Within each, the claim itself prescribes 2 years after the damage manifests (LOE art. 18.1).
Joint and several liability (art. 17.3)
Where the cause cannot be individualised or concurrent fault cannot be proved, liability is joint and several. This lets the buyer sue all involved agents and the judge sorts out internal distribution.
The developer's liability is always joint and several with the other agents (LOE art. 17.3 in fine). It's a key procedural strategy: suing the developer guarantees an economic respondent.
Mandatory insurance (art. 19)
To guarantee art. 17 liabilities, the developer must obtain:
- 10-year property damage insurance: mandatory for residential buildings; covers the decennial warranty of art. 17.1.a. Without it, the new-build deed cannot be registered (LOE art. 20).
- 3-year insurance: for habitability defects. Optional for housing, mandatory for some uses.
- 1-year insurance: for finishings. Usually replaced by a 5% retention to the builder.
The insured-policyholder is the developer; the beneficiaries are the successive buyers (LOE art. 19.5). The buyer can claim directly against the insurer.
Guarantee of payments on account (AD 1)
When amounts are paid before delivery (reservation, deposit, private contracts), the LOE forces the developer to secure them with a bank guarantee or insurance. The Act 20/2015 reform reinforces this regime.
If the developer fails to deliver in time or fails to start construction, the buyer can trigger the guarantee without waiting for a court ruling.
Practical application: how to claim LOE defects
The typical procedure:
- Defect detection and documentation with photos, video, technical survey.
- Identification of liable agent or agents (art. 17.3).
- Pre-litigation letter (burofax) that interrupts prescription and triggers default.
- If no response, civil claim before the Court of First Instance at the place of works.
- Joinder with action against the insurer where applicable (decennial or payments on account).
Typical first instance period: 10-18 months. The ruling may order repair in kind or indemnification based on the survey.
Territorial scope: Andalucía and Costa del Sol
The LOE applies throughout Spain. In Andalucía it works alongside the Urban Planning Act of Andalucía (LISTA 7/2021) for permits and administrative procedures. Each municipality adds its building ordinance, especially relevant for first-occupation licence.
For foreign buyers on Costa del Sol (UK, Netherlands, Belgium, France, Germany, Nordics), the LOE is fully applicable: the property is in Spain, the contract is Spanish, the developer is Spanish. There's no opt-out for foreign buyers and the bilingual handling of the case is logistical, not legal.
Frequently asked questions
Does the LOE also protect second buyers?
Yes. Successive buyers are beneficiaries of the decennial insurance and can exercise LOE art. 17 actions during the remaining warranty period, from the original delivery.
And if the contract says I waive LOE rights?
Such clause is void. LOE establishes a public-order liability regime that cannot be waived in advance by the consumer.
When does the 10-year period start?
From the date of works acceptance (LOE art. 6), not the delivery of the individual unit. The difference can be months; check the acceptance deed.
Does LOE apply to detached/single-family homes?
Yes. It applies to all buildings included in LOE art. 2, including detached homes. There is a specific exception for self-promoters of own-use detached homes regarding decennial insurance.
