FIDIC

Latent Defects Under FIDIC — Liability Beyond the Defects Liability Period

The defects liability period is not the end of the contractor’s warranty obligations. Latent defects — those not discoverable by reasonable inspection during the DLP — remain actionable long after practical completion, limited only by statutory limitation periods.

6 min read · Updated 23/05/2026

In this article

1. Latent Defects — Definition and Scope
2. Discovery and Discoverability
3. Limitation Periods — The Legal Framework
4. The Six-Year Rule Under Common Law
5. Extension of Limitation Periods
6. Contractor’s Exposure Post-DLP

Key takeaway

Latent defects discovered years after practical completion can still be pursued against the contractor, subject to limitation periods (typically 6 years from discovery or 12 years from the date of the breach, depending on jurisdiction). The contractor’s warranty does not end with the DLP — it extends for the full limitation period, creating long-tail exposure.

1. Latent Defects — Definition and Scope

A latent defect is a defect that is not reasonably discoverable by inspection at the time the final certificate (or end of the DLP) is issued. The defect exists in the works, but is hidden — concealed within structural elements, buried in ground, hidden behind finishes, or otherwise not observable by reasonable inspection.

The distinction between patent and latent is critical:

• Patent defects: Visible, obvious, discoverable by reasonable inspection during the DLP. These should be notified and remedied during the DLP. Once the DLP ends without notification, patent defects are generally no longer actionable (subject to the conclusiveness of the final certificate).
• Latent defects: Hidden, not discoverable by reasonable inspection. These remain actionable even after the DLP ends — the contractor remains liable for their remedy.

Example: A concrete structural defect (hairline cracks in a concealed column) is discovered during structural reinforcement work five years after practical completion. This is latent — it was not discoverable during the DLP — and the contractor remains liable for remedy.

2. Discovery and Discoverability

The test for whether a defect is latent is not whether the employer’s inspector happened to find it, but whether a competent, reasonable inspector would have discovered it. The standard is objective — not subjective to the specific inspector.

A defect that would have been observable to a competent inspector but was missed due to negligence is not latent — it is a patent defect that should have been found. The employer cannot hide behind inspection failure to claim a defect is latent.

However, a defect that is genuinely beyond reasonable discovery (for example, a hairline crack in a concealed structural element that can only be detected by destructive testing or specialist equipment) is truly latent and remains actionable.

3. Limitation Periods — The Legal Framework

Latent defects are subject to limitation periods — rules that restrict how long after a breach a claim can be brought. In common law jurisdictions (UK, many Commonwealth countries, and some civil law jurisdictions with similar principles), the Limitation Act 1980 (or equivalent) applies.

The limitation period is typically six years from the date the claimant discovered (or ought reasonably to have discovered) the defect. In some jurisdictions, the period is 12 years from the date of the breach (the date the defective work was completed), whichever is earlier.

FIDIC contracts do not override these statutory limitation periods — they apply in addition to any contractual terms. The parties cannot contract out of limitation periods in most jurisdictions (though some contracts specify a longer or shorter period, subject to enforceability challenges).

4. The Six-Year Rule Under Common Law

Under the Limitation Act 1980 (England and Wales) and equivalent legislation in other jurisdictions:

• An action for breach of contract must be brought within six years from the date of the breach
• For latent defects, the breach is the date the defective work was completed (not the date of discovery)
• However, for latent defects, the limitation period may be extended — the clock does not start until discovery

This creates a “discovery rule” for latent defects: if a defect is latent and not discoverable at the time of completion, the limitation period starts when the defect is discovered, not when the work was completed.

Example: A building is completed on 1 January 2020. A latent structural defect is discovered on 1 January 2026 (six years later). The limitation period for claiming against the contractor is six years from discovery — i.e., claims must be brought by 1 January 2032 (12 years after the defect was made). The contractor’s exposure extends well beyond the DLP.

5. Extension of Limitation Periods

Limitation periods can be extended or suspended in certain circumstances:

• Disability: If the claimant is a minor or person of unsound mind, the limitation period may be extended
• Fraudulent concealment: If the contractor fraudulently conceals the defect (actively hiding it), the limitation period may be extended or reset
• Continuous breach: If the contractor continues to breach (for example, by continuing to sell the building with known defects), the clock may restart

These extensions are narrow — they do not typically extend the period indefinitely. However, they can add years to the contractor’s exposure.

6. Contractor’s Exposure Post-DLP

The contractor’s exposure to latent defect claims extends well beyond the DLP. In practical terms:

• A latent defect discovered 5 years after practical completion can still be claimed (within the 6–12-year limitation window)
• The contractor may face substantial repair costs decades after the work was completed
• Professional indemnity insurance must cover latent defects — contractors should ensure their PI insurance extends for the full limitation period
• Contractors should maintain good records and documentation of work performed, materials used, and inspections conducted — these will be essential in defending against latent defect claims years later

The practical consequence: the contractor’s warranty does not end with the DLP. It extends, at minimum, for six years after discovery of the defect (and potentially 12 years from the date of completion). This is a long-tail risk that many contractors underestimate.

Latent Defect Liability and Long-Tail Exposure

We advise on latent defect discoverability assessment, limitation period analysis, and contractor exposure quantification. Latent defects create long-tail risk — planning and insurance protection are essential.

Book a 30-Minute Case Assessment →

Offices in Dubai · Available for instructions across the UAE and GCC