Claims · Arbitration · Procedure

Construction Claims and Arbitration in the UAE: A Practical Guide

How to file FIDIC claims, navigate DIAC arbitration, submit expert evidence, and enforce awards under UAE law.

9 min read · Updated 24/04/2026

In this article

1. Filing Construction Claims Under FIDIC in the UAE
2. Extension of Time (EOT) and Delay Analysis
3. Notice Procedures and Time-Bar Traps
4. Variation Orders and Prolongation Costs
5. DIAC Arbitration vs. Court Litigation
6. Expert Witnesses in UAE Arbitration
7. Common Pitfalls and How to Avoid Them

Key takeaway

Construction claims in the UAE are governed by FIDIC contract terms, UAE Federal Arbitration Law No. 6 of 2018, and DIAC procedural rules. Strict compliance with notice deadlines, detailed submission requirements, and proof of critical path impact are non-negotiable. Most claims fail not because the underlying entitlement is absent, but because of procedural errors or inadequate evidence. Early specialist advice and meticulous documentation are essential to success.

1. Filing Construction Claims Under FIDIC in the UAE

Filing a construction claim under a FIDIC contract in the UAE requires strict compliance with three elements: notice procedures, documentation standards, and contractual timelines. Failure in any of these elements can result in forfeiture of entitlement, regardless of the claim’s underlying merit.

The Three-Step Process

Step 1: Issue a Notice of Claim (within 28 days)

Under FIDIC Sub-Clause 20.1, a contractor must issue a written Notice of Claim within 28 days of becoming aware of the event giving rise to the claim. This notice need not be fully quantified; it must simply:

• Identify the event or circumstance causing the claim.
• Assert the contractual basis for entitlement (e.g., “Employer-caused delay under Clause 20.1”).
• Request an extension of time, additional payment, or both.

Step 2: Submit Detailed Claim (within 42 days)

Within 42 days of the notice, the contractor must submit a fully detailed claim including:

• The contractual entitlement basis.
• Cause-and-effect analysis linking the event to delay or cost impact.
• Programme analysis demonstrating critical path impact (for EOT claims).
• Quantified additional costs with supporting records (invoices, timesheets, quotations).
• Contemporaneous documents: correspondence, site diaries, progress reports, meeting minutes.

Step 3: Engage with Engineer’s Response

The Engineer has 28 days to respond to the claim. If the Engineer rejects the claim or the parties cannot agree, the contractor may refer the dispute to DIAC arbitration under the contract’s arbitration clause.

2. Extension of Time (EOT) and Delay Analysis

Extension of Time (EOT) is a formal contractual request to extend the agreed completion date due to qualifying delay events—without incurring Liquidated Damages (LD) for the extended period.

When is EOT Entitlement Triggered?

Under FIDIC contracts, EOT entitlement typically arises from:

• Employer-Caused Delays: Late issuance of drawings, changes in scope, denial of site access.
• Force Majeure Events: War, natural disaster, strike, epidemic.
• Unforeseen Physical Conditions (Clause 4.12): Unexpected ground conditions, contamination, rock encountered.
• Exceptionally Adverse Weather: Weather conditions outside contract parameters.
• Changes in Law: New legislation requiring design or method changes.

Critical Requirement: The Delay Must Affect the Critical Path

Only delays that impact the critical path (the longest sequence of dependent activities) qualify for EOT. A delay to a non-critical activity with available float does not delay project completion and is not compensable.

Accepted Delay Analysis Methods in UAE Arbitration

• Time Impact Analysis (TIA): Most widely accepted. Models each delay event prospectively on the programme, calculating its independent time impact.
• As-Planned vs. As-Built (APAB): Useful baseline comparison. Compares planned schedule to actual progress to identify when and where delays occurred.
• Windows Analysis: Divides the project into monthly time windows and analyzes the critical path within each window. Well-regarded by UAE tribunals for complex, evolving projects.
• Collapsed As-Built: Retrospective “but-for” approach. Models the schedule as-if a delay event had not occurred. Can be challenged as less reliable than prospective methods.

A robust analysis must be supported by a contemporaneous baseline programme approved by both parties, regular progress updates (monthly minimum), site diaries, and progress reports. The Society of Construction Law (SCL) Delay and Disruption Protocol is widely referenced as best practice in UAE arbitration proceedings.

3. Notice Procedures and Time-Bar Traps

The 28-day notice deadline is a critical trap. Missing it typically forfeits the claim entirely, regardless of the underlying merits.

The 28-Day Rule

FIDIC Sub-Clause 20.1 states: “The Contractor shall give written notice of the event or circumstance constituting the claim within 28 days of becoming aware of it, or of the date on which he should have become aware of it.”

What happens if the deadline is missed?

• Loss of Entitlement: Under a strict reading of FIDIC, the contractor loses entitlement to both additional time and payment—regardless of the claim’s merit.
• UAE Tribunal Enforcement: UAE arbitral tribunals have generally upheld the 28-day time-bar as a condition precedent to entitlement. The requirement is strictly enforced.
• Prejudice Argument (Limited): Some tribunals have considered whether the employer suffered actual prejudice from the late notice. However, this is not a reliable defence and should not be relied upon.
• Contract Modification: Some FIDIC contracts include amendments modifying or excluding the time-bar. Always review the specific contract wording.

4. Variation Orders and Prolongation Costs

Variation Orders are Employer-directed changes to the scope of work. Prolongation Costs are additional costs incurred due to project delay, including site overhead extended beyond the original schedule.

Variation Claims: What Evidence is Required?

To establish entitlement to a variation claim:

• Original contract drawings, specifications, and Bill of Quantities.
• Written Engineer’s Instruction or formal Variation Order.
• Correspondence, RFIs, or meeting minutes confirming the variation instruction.
• Revised drawings or specifications issued after contract date.

To establish quantum (value):

• Detailed cost build-up: labour rates, materials, plant, and subcontractor costs.
• Site records and timesheets confirming the work was performed.
• Supplier invoices and delivery records.
• Comparison with contract rates where applicable (FIDIC Sub-Clause 13.3).

Critical Warning: Verbal instructions are a major risk. Always confirm in writing immediately and request formal written confirmation before proceeding. Many tribunals will refuse to award relief for variations not evidenced by written instruction.

Prolongation Costs: Time + Costs

If an Employer-caused event results in critical path delay, the contractor is entitled to both EOT and prolongation costs. Prolongation costs typically include:

• Site overhead costs: management and supervisory staff salaries, site establishment.
• Equipment and plant hire: tower cranes, concrete pumps, scaffolding kept on site during delay.
• Temporary works and utilities: site offices, canteens, security, power, water.
• Finance and insurance: interest on working capital, extended insurance premiums.

To succeed in UAE arbitration, you must prove: (1) an Employer-risk event occurred, (2) it caused critical path delay, (3) actual additional costs were incurred, and (4) costs are substantiated by contemporaneous financial records. Lump-sum estimates without proper build-ups are routinely rejected.

5. DIAC Arbitration vs. Court Litigation

Both DIAC arbitration and UAE court litigation are valid routes for resolving construction disputes, but they differ significantly in process, speed, expertise, and enforceability.

Recommendation: For high-value, technically complex construction disputes in the UAE, DIAC arbitration is generally the preferred route. It offers confidentiality, technical expertise, speed, and internationally enforceable awards.

6. Expert Witnesses in UAE Arbitration

An Engineering Expert Witness provides an independent technical opinion to help the tribunal understand complex engineering, construction, or quantum matters beyond general legal expertise.

Key Responsibilities

• Prepare a Written Expert Report: Technical facts, analysis, and independent opinion addressing the tribunal’s questions.
• Attend Hearings: Provide oral testimony and respond to cross-examination.
• Participate in Expert Sessions: Engage in “hot-tubbing” (concurrent expert testimony) if ordered by the tribunal.
• Respond to Opposing Expert: Review and rebut the opposing expert’s report with reasoned technical argument.

The Critical Duty: Independence

The expert’s duty is to the tribunal, not to the appointing party. An expert who appears to advocate for their client’s position will lose credibility before the tribunal and damage the party’s case. The best expert is one who is willing to concede points on technical matters where the opposing expert is correct.

How to Appoint an Expert Witness

• Identify a qualified engineer with relevant sector experience and prior UAE arbitration exposure.
• Verify independence: ensure no financial interest in the outcome and no prior relationship with the party.
• Agree scope of engagement and terms in writing before instruction.
• Submit the expert’s CV and declaration of independence to the tribunal.
• Experts registered with DIAC or possessing prior DIAC experience carry additional credibility.

7. Common Pitfalls and How to Avoid Them

Many construction claims in UAE arbitration fail not because the underlying entitlement was absent, but because of avoidable procedural and evidential failures. Understanding and addressing these pitfalls dramatically improves the prospects of success.

The Six Most Common Reasons Claims Fail

1. Missing the 28-Day Notice of Claim Deadline

This is the single most common cause of claim failure. Issue the notice within 21 days of becoming aware of the event—well before the deadline. The notice need not be fully quantified; it simply asserts entitlement. The detailed submission follows within 42 days.

2. Insufficient Contemporaneous Records

Site diaries, daily reports, programme updates, and correspondence must be maintained from day one of the contract. Without contemporaneous documentation, your evidence of delay events and causation is weak and easily challenged. Photos, emails, and signed daily reports are critical.

3. Failure to Demonstrate Critical Path Impact

A delay event that does not affect the completion date will not support an EOT claim or prolongation cost claim. Delay analysis must clearly show which activities were critical and why the delay event pushed out Practical Completion. Without this, the claim fails.

4. Poor Cost Substantiation

Every dirham claimed must be traceable to a source document. Lump-sum cost estimates are routinely rejected by UAE tribunals. Build costs from invoices, timesheets, quotations, and actual supplier records. Include breakdowns: labour rates × hours, equipment hire × days, materials cost per unit.

5. No Qualified Technical Expert

Claims involving complex engineering or quantum matters without independent expert support are at a serious disadvantage in arbitration. Arbitrators value credible, independent expert evidence. If your case involves schedule analysis, quantum assessment, or technical causation, engage a qualified expert early.

6. Failure to Follow the Dispute Resolution Ladder

Many FIDIC contracts require a Dispute Adjudication Board (DAB) decision or Engineer’s decision before arbitration can commence. Skipping these steps or not exhausting contractual remedies can render the claim inadmissible in arbitration. Always follow the contract procedure carefully.

Expert Guidance on Construction Claims and Arbitration

Construction claims in the UAE are won or lost on the strength of procedural compliance, evidence quality, and technical expert support. Whether you are pursuing a delay claim, variation claim, or defending against allegations of breach, early specialist advice is essential. Our team of experienced claims consultants, engineers, and DIAC-registered arbitrators can assess your entitlements, guide you through notice and submission requirements, prepare expert evidence, and represent you in arbitration.

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