Construction Arbitration in Turkey: Common Disputes and Legal Solutions

Introduction

Construction and infrastructure projects are among the most complex commercial transactions in Turkey. Large projects usually involve employers, contractors, subcontractors, architects, engineers, consultants, suppliers, banks, insurers and public authorities. The contractual structure may include several interdependent agreements, detailed technical specifications, strict completion schedules, performance guarantees and substantial financial risks.

Even well-planned construction projects may generate disputes concerning delays, additional works, payment certificates, design changes, defects, extensions of time, price escalation, termination and performance bonds. When the project includes foreign contractors, international financing, imported equipment or cross-border services, these disputes may also involve different legal systems and languages.

For this reason, arbitration is frequently selected as the dispute resolution mechanism in Turkish construction contracts. Arbitration allows parties to choose decision-makers with construction and engineering experience, conduct proceedings in an agreed language and design a procedure suitable for technically complex claims.

Construction arbitration in Turkey may be conducted under the Istanbul Arbitration Centre Rules, the rules of another international arbitration institution or through an ad hoc procedure. The applicable Turkish arbitration law depends principally on whether the dispute contains a foreign element and where the legal seat of arbitration is located.

This comprehensive guide examines the legal framework for construction arbitration in Turkey, the most common construction disputes, the importance of contractual notices and project records, the role of experts and dispute boards, and the legal solutions available to employers, contractors and investors.

Why Is Arbitration Commonly Used in Construction Disputes?

Construction disputes are different from ordinary commercial payment claims. They often involve thousands of documents, detailed schedules, technical drawings, progress reports, site records, expert calculations and several years of project history.

A national court may need to appoint technical experts to analyse the dispute. Arbitration, by contrast, allows the parties to appoint arbitrators with direct experience in construction contracts, engineering projects or international infrastructure transactions.

The principal reasons for choosing arbitration include:

• The ability to appoint specialist arbitrators;
• Procedural flexibility;
• Confidentiality;
• Neutrality in international projects;
• The use of English or another agreed language;
• The possibility of coordinating legal and technical evidence;
• Limited judicial review of the final award;
• International enforceability under the New York Convention.

The New York Convention establishes common standards for recognising arbitration agreements and enforcing foreign and non-domestic arbitral awards. This framework is particularly important where the unsuccessful party owns assets outside the country in which the arbitration is seated.

Arbitration is not automatically faster or cheaper than litigation. A major construction arbitration involving numerous delay events, technical experts and several hearing weeks may be expensive. Its principal advantage is that the procedure can be structured around the particular project and dispute.

Legal Framework for Construction Arbitration in Turkey

The principal legislation governing arbitration in Turkey consists of:

• The Turkish International Arbitration Law No. 4686;
• Articles 407 to 444 of the Turkish Code of Civil Procedure No. 6100;
• The Turkish International Private and Procedural Law No. 5718;
• The New York Convention;
• Applicable institutional arbitration rules.

International Construction Arbitration

The Turkish International Arbitration Law generally applies where the dispute contains a legally recognised foreign element and the seat of arbitration is in Turkey. It may also apply in other circumstances expressly permitted by the legislation.

A foreign element may arise where:

• The parties have places of business in different countries;
• A substantial part of the contractual obligations is performed outside Turkey;
• The project involves foreign capital;
• Goods, equipment, services or finance move across borders;
• The project is most closely connected with another country.

A dispute between two Turkish companies may therefore qualify as international arbitration where the underlying construction project or financing structure has an international character.

Domestic Construction Arbitration

Domestic arbitration is governed principally by the Turkish Code of Civil Procedure where the dispute does not contain a foreign element and the seat of arbitration is located in Turkey.

Both domestic and international arbitration recognise fundamental principles such as:

• Party autonomy;
• Written arbitration agreements;
• Separability of the arbitration clause;
• The tribunal’s authority to decide its own jurisdiction;
• Equal treatment of the parties;
• Limited judicial intervention;
• Limited grounds for setting aside awards.

Correctly identifying the applicable arbitration regime is important because it affects court assistance, deadlines, setting-aside proceedings and enforcement.

Are Construction Disputes Arbitrable under Turkish Law?

Most contractual construction disputes are capable of settlement through arbitration.

Arbitrable claims commonly include:

• Unpaid progress payments;
• Additional work claims;
• Extension-of-time claims;
• Delay damages;
• Disruption and loss-of-productivity claims;
• Defect and repair costs;
• Termination compensation;
• Price adjustment claims;
• Claims concerning performance guarantees;
• Final-account disputes;
• Contractor and subcontractor claims.

However, Turkish law does not permit arbitration of every type of dispute. Matters that are not subject to the parties’ free disposition and disputes concerning rights in rem over immovable property located in Turkey are generally not arbitrable.

This distinction is important in construction projects. A contractual claim for payment arising from works performed on immovable property may be arbitrable. By contrast, a direct dispute determining ownership or another right in rem over the property may not be referred to arbitration.

Construction agreements connected with public procurement, concessions, administrative contracts or mandatory public-law powers may require a separate arbitrability assessment. The legal character of the contract and the relief requested must be examined rather than assuming that every dispute arising from a construction project can be arbitrated.

Arbitration Clauses in Turkish Construction Contracts

An arbitral tribunal derives its jurisdiction from the arbitration agreement. A construction arbitration cannot generally proceed unless the parties have validly agreed to arbitration.

The agreement may appear:

• As a clause in the main construction contract;
• In a separate arbitration agreement;
• In general conditions incorporated by reference;
• In an exchange of written or electronic communications;
• In a later agreement signed after the dispute has arisen.

The arbitration clause should clearly state that disputes will be finally resolved through arbitration. Optional or contradictory language may create jurisdictional disputes.

A comprehensive construction arbitration clause should identify:

• The arbitration institution or ad hoc rules;
• The legal seat of arbitration;
• The language;
• The number of arbitrators;
• The governing substantive law;
• The scope of arbitrable disputes;
• The appointment mechanism;
• Pre-arbitration procedures;
• Dispute-board requirements;
• Emergency relief;
• Confidentiality;
• Consolidation and joinder mechanisms.

ISTAC’s model clause provides that disputes arising out of or in connection with the contract will be finally settled under the Istanbul Arbitration Centre Arbitration Rules. ISTAC also recommends that parties specify the seat, language, number of arbitrators and law applicable to the merits.

Generic arbitration clauses should not be inserted into construction contracts without considering the project’s contractual structure. The employer-contractor agreement, consultancy contract, subcontract, guarantee and supply agreements should contain compatible dispute resolution provisions wherever commercially appropriate.

Common Construction Disputes in Turkey

1. Delay and Extension-of-Time Claims

Delay is one of the most common causes of construction arbitration.

Projects may be delayed by:

• Late site handover;
• Delayed design approvals;
• Employer variations;
• Unforeseen ground conditions;
• Permit problems;
• Late access to work areas;
• Shortage of materials;
• Labour disputes;
• Contractor underperformance;
• Supply-chain disruption;
• Force majeure;
• Concurrent delays.

The legal question is not simply whether the project was completed late. The tribunal must determine which event caused the delay, which party assumed the relevant risk and whether the delay affected the contractual completion date.

A contractor seeking an extension of time generally needs to establish:

1. The occurrence of an event recognised by the contract;
2. Responsibility or risk allocation under the agreement;
3. Compliance with contractual notice requirements;
4. A causal connection between the event and critical delay;
5. The period of extension claimed.

The employer may respond that the event was not critical, the contractor was already in delay or the contractor failed to mitigate its losses.

Delay analysis may require specialist programming evidence using methods such as:

• As-planned versus as-built analysis;
• Time-impact analysis;
• Windows analysis;
• Critical-path analysis;
• Collapsed as-built analysis.

The appropriate method depends on the contractual programme, available records and nature of the delay events.

2. Liquidated Damages and Delay Penalties

Construction contracts frequently provide for a predetermined amount payable for each day or week of delay.

The employer may claim liquidated damages by demonstrating that:

• The completion date expired;
• The works were not completed on time;
• The contractual requirements for imposing damages were satisfied;
• No valid extension of time covers the delay period.

The contractor may argue that:

• The employer caused the delay;
• Time was validly extended;
• The completion date became ineffective;
• The contractual notice requirements were not satisfied;
• The amount is legally reducible or otherwise unenforceable;
• The employer accepted or waived the relevant delay.

Turkish law concerning contractual penalties, mandatory legal principles and judicial reduction may become relevant depending on the parties’ commercial status, the wording of the contract and the applicable substantive law.

The arbitration clause cannot be analysed separately from the governing-law clause. A foreign-law construction contract seated in Turkey may produce a different penalty analysis from a contract governed by Turkish law.

3. Variation and Change-Order Disputes

Construction projects rarely proceed exactly as originally designed. Employers may request changes to quantities, specifications, materials, layout, design or sequence of work.

Disputes commonly arise over:

• Whether an instruction constitutes a variation;
• Whether the person issuing the instruction had authority;
• Whether the contractor followed the required procedure;
• The valuation method;
• Additional time;
• Disruption caused to unaffected work;
• Whether the work was already included in the original scope;
• Oral instructions;
• Constructive changes.

A contractor may perform work in response to site instructions but fail to obtain a formal written change order. The employer may later deny liability on the ground that the contractual variation procedure was not followed.

The tribunal may need to examine:

• Contract correspondence;
• Site instructions;
• Meeting minutes;
• Revised drawings;
• Approval records;
• Payment certificates;
• Witness evidence;
• Course of dealing;
• Good-faith principles;
• Authority of the engineer or employer’s representative.

Construction companies should not rely solely on informal site practices. Every change should be documented together with its cost and time consequences.

4. Progress-Payment and Valuation Disputes

Progress-payment disputes may concern:

• Measurement of completed work;
• Unit rates;
• Re-measurement;
• Retention deductions;
• Set-off;
• Advance-payment recovery;
• Material stored on or off site;
• Certification delays;
• Rejection of invoices;
• Currency conversion;
• Tax treatment;
• Final-account calculations.

An engineer’s or consultant’s payment certificate may have contractual significance, but its effect depends on the contract. The certificate may constitute a provisional valuation rather than a final determination of legal entitlement.

The contractor should preserve:

• Approved measurement sheets;
• Daily records;
• Delivery documents;
• Invoices;
• Quantity calculations;
• Progress photographs;
• Certificates;
• Objections to deductions;
• Correspondence concerning unpaid amounts.

Where the employer withholds payment due to alleged defects or delay, the tribunal may need to determine whether the set-off was contractually and legally justified.

5. Defects and Quality Disputes

Employers frequently claim that the works do not comply with:

• Technical specifications;
• Approved designs;
• Building regulations;
• Performance requirements;
• Industry standards;
• Testing and commissioning criteria;
• Fitness-for-purpose obligations.

The contractor may argue that:

• The works comply with the agreed design;
• The defect resulted from employer instructions;
• The employer’s design was inadequate;
• The complaint concerns ordinary maintenance;
• The defect was caused by third-party work;
• The employer failed to provide an opportunity to repair;
• The claim was made after expiry of the contractual period.

Defect cases require precise technical evidence.

The expert should identify:

1. The alleged defect;
2. The contractual standard;
3. The cause;
4. Responsibility;
5. The appropriate repair method;
6. The reasonable repair cost;
7. Any resulting loss of use or diminution in value.

An employer cannot ordinarily establish a complex defect claim merely by presenting repair invoices. The claimant must connect the expenditure to a breach attributable to the contractor.

6. Design Responsibility

Modern construction contracts allocate design responsibility in different ways.

In traditional projects, the employer or its consultant may provide the design while the contractor performs the works. In design-build, EPC or turnkey arrangements, the contractor may assume extensive design and performance obligations.

Design disputes may concern:

• Errors in employer-provided drawings;
• Contractor design development;
• Coordination between disciplines;
• Code compliance;
• Approval of shop drawings;
• Fitness for purpose;
• Buildability;
• Interface failures;
• Design changes;
• Intellectual-property rights.

Approval by the employer or engineer does not necessarily transfer design risk. The outcome depends on the contract.

A proper analysis should identify:

• Who created the design;
• Who was required to review it;
• Whether approval was limited;
• Whether the defect was reasonably discoverable;
• Whether the contractor had a duty to warn;
• Whether the contractual result was achieved.

7. Unforeseen Site Conditions

Subsurface conditions can create significant additional costs.

Disputes may involve:

• Unexpected rock;
• Contaminated soil;
• Archaeological findings;
• Groundwater;
• Unmapped utilities;
• Unstable ground;
• Different geotechnical conditions;
• Existing structures not shown in project records.

The tribunal must determine which party assumed the risk.

Relevant documents include:

• Geotechnical reports;
• Tender information;
• Site-investigation records;
• Borehole data;
• Contractor qualifications;
• Risk registers;
• Method statements;
• Daily reports;
• Expert geological evidence.

The contractor may need to demonstrate that the condition was materially different from what could reasonably have been anticipated based on the information available at tender stage.

8. Disruption and Loss of Productivity

Disruption is different from delay. A project may still be completed by the contractual date while the contractor’s productivity is seriously reduced.

Causes may include:

• Repeated design revisions;
• Out-of-sequence work;
• Restricted access;
• Crowded work areas;
• Excessive overtime;
• Repeated mobilisation;
• Late material approvals;
• Interference by other contractors;
• Acceleration;
• Fragmentation of activities.

Loss-of-productivity claims are difficult because they require proof of causation and quantum.

Common methodologies include:

• Measured-mile analysis;
• Earned-value comparison;
• Industry studies;
• Project-specific productivity analysis;
• Cost-based approaches.

A total-cost claim based only on the difference between tendered and actual costs may be vulnerable if the contractor cannot prove the reasonableness of its original estimate, absence of self-caused inefficiency and causal link to the employer’s conduct.

9. Price Escalation, Inflation and Currency Risk

Long-term Turkish construction projects may be affected by:

• Inflation;
• Exchange-rate fluctuations;
• Increases in material prices;
• Labour-cost increases;
• Changes in taxes or customs charges;
• Supply-chain disruption;
• Energy-cost increases.

The right to price adjustment depends primarily on the contract and applicable law.

The agreement may include:

• A fixed-price structure;
• An escalation formula;
• Index-based adjustment;
• Foreign-currency payment;
• Change-in-law protection;
• Hardship provisions;
• Force-majeure provisions;
• Renegotiation mechanisms.

A contractor cannot assume that substantial cost increases will automatically create a right to additional payment. Conversely, a fixed-price clause may not resolve every issue where exceptional events, mandatory law or employer-caused delay materially changes the contractual balance.

Contemporaneous cost records and economic evidence are essential.

10. Suspension and Termination

Construction contracts usually permit suspension or termination for specified events.

Employers may terminate due to:

• Failure to proceed regularly;
• Serious delay;
• Abandonment;
• Defective work;
• Failure to provide security;
• Insolvency;
• Repeated contractual breaches.

Contractors may terminate or suspend due to:

• Persistent non-payment;
• Failure to provide access;
• Prolonged suspension;
• Failure to provide approvals;
• Employer repudiation;
• Exceptional contractual events.

Wrongful termination may produce substantial claims involving:

• Unpaid work;
• Demobilisation costs;
• Lost profit;
• Cost to complete;
• Defect remediation;
• Replacement-contractor costs;
• Equipment removal;
• Performance-security proceeds.

Termination is a high-risk remedy. A party should verify that the contractual grounds, notice periods and cure procedures have been satisfied before terminating.

11. Performance Bonds and Advance-Payment Guarantees

Large construction projects frequently require:

• Performance guarantees;
• Advance-payment guarantees;
• Retention guarantees;
• Warranty bonds;
• Parent-company guarantees.

A dispute may arise where the employer calls a guarantee and the contractor alleges that the call is abusive, fraudulent or inconsistent with the underlying contract.

Independent bank guarantees are generally treated separately from the construction contract. Therefore, a contractor’s defence under the main contract may not automatically prevent payment by the bank.

Urgent interim relief may be required before the guarantee is paid. The available legal options depend on:

• The guarantee wording;
• Applicable law;
• Evidence of abuse or fraud;
• The bank’s location;
• The arbitration clause;
• Timing of the call.

ISTAC offers an emergency-arbitrator mechanism for qualifying cases requiring urgent protection before the main tribunal has been constituted. ISTAC states that the emergency arbitrator is appointed within two working days and generally issues a decision within seven days.

12. Subcontractor and Multi-Party Disputes

Construction projects often involve several contractual layers:

• Employer-contractor;
• Contractor-subcontractor;
• Employer-consultant;
• Contractor-supplier;
• Joint-venture partners;
• Banks and guarantors.

A defect or delay may involve several parties, but each contract may contain a different arbitration clause.

This can lead to:

• Parallel arbitrations;
• Inconsistent findings;
• Jurisdictional objections;
• Difficulty joining subcontractors;
• Allocation problems between project participants.

Parties should consider consolidation and joinder when drafting project documents. Related contracts should use compatible institutions, seats, languages and appointment mechanisms where commercially appropriate.

A tribunal cannot ordinarily assume jurisdiction over a non-signatory merely because that company is economically connected with a project participant. Consent to arbitration remains fundamental.

Contractual Notice Requirements and Time Bars

Construction contracts frequently require notice within a specified period following the event giving rise to a claim.

A notice clause may require the contractor to state:

• The relevant event;
• The contractual provision;
• The expected cost;
• The delay effect;
• The supporting records;
• The relief requested.

Failure to comply may reduce or extinguish the claim, depending on the contract and governing law.

Notice disputes often concern:

• Whether the communication was sufficiently clear;
• Whether it was sent to the correct person;
• Whether the claim was submitted on time;
• Whether the employer had actual knowledge;
• Whether strict enforcement would be inconsistent with good faith;
• Whether the employer waived compliance;
• Whether later records cured an earlier deficiency.

Project teams should not wait for the final account before formalising claims. Notices should be issued when the relevant event occurs, even if the full financial effect is not yet known.

FIDIC Contracts and Dispute Boards

FIDIC forms are widely used in international engineering and construction projects. Depending on the selected form and edition, the contract may contain a multi-stage dispute resolution process involving the engineer, a Dispute Adjudication Board or Dispute Avoidance/Adjudication Board, amicable settlement and arbitration.

FIDIC’s published Golden Principles state that, unless inconsistent with the governing law, formal disputes under the relevant forms should be referred to a dispute board for a provisionally binding decision as a condition preceding arbitration.

A dispute board may:

• Follow project progress;
• Visit the site;
• Provide informal assistance;
• Review disputes promptly;
• Issue contractually binding decisions;
• Help prevent escalation.

FIDIC materials describe dispute boards as independent panels created by the contract to assist in avoiding disputes or resolving them quickly before arbitration becomes necessary.

Parties using FIDIC-based contracts should not automatically assume that the standard wording remains intact. Particular Conditions frequently modify notice periods, claim procedures, risk allocation and dispute-board requirements.

Before commencing arbitration, counsel should determine:

• Whether referral to the dispute board was mandatory;
• Whether the board was validly constituted;
• Whether a notice of dissatisfaction was submitted;
• Whether the dispute-board decision became final and binding;
• Whether the amicable-settlement period expired;
• Whether an exception permits direct arbitration.

Failure to comply with mandatory pre-arbitration stages may lead to jurisdictional or admissibility objections.

Evidence in Construction Arbitration

Construction arbitration is evidence-intensive.

Important evidence may include:

• The contract and amendments;
• Technical specifications;
• Drawings;
• Bills of quantities;
• Baseline and updated programmes;
• Progress reports;
• Daily site records;
• Meeting minutes;
• Instructions;
• Requests for information;
• Payment certificates;
• Correspondence;
• Photographs and videos;
• BIM data;
• Cost ledgers;
• Timesheets;
• Procurement records;
• Expert reports.

Project records should be prepared contemporaneously. Documents created years later for arbitration are usually less persuasive than records produced during the works.

The parties should also preserve electronic evidence, including:

• Emails;
• Messaging-platform communications;
• Digital drawings;
• Document-management-system logs;
• Schedule files;
• Metadata;
• Drone footage;
• BIM records.

ISTAC has recently highlighted digitalisation, BIM, digital evidence, delay and quantum as important developments in international construction arbitration.

The Role of Construction Experts

Experts frequently play a decisive role in construction arbitration.

Potential disciplines include:

• Civil engineering;
• Architecture;
• Mechanical and electrical engineering;
• Geotechnical engineering;
• Delay analysis;
• Quantity surveying;
• Forensic accounting;
• Valuation;
• Defect analysis;
• Project management.

A party-appointed expert should remain independent and explain:

• Instructions received;
• Documents reviewed;
• Methodology;
• Assumptions;
• Calculations;
• Limitations;
• Conclusions.

The expert’s role is not to act as an advocate. A technically strong report should distinguish between facts, assumptions and opinion.

Where experts use different methodologies, the tribunal may order:

• Joint expert meetings;
• Joint statements;
• Issue-by-issue comparison;
• Concurrent expert evidence;
• Tribunal-appointed expertise.

Lawyers and experts should coordinate early. A legal claim framed without considering the available technical proof may later become impossible to establish.

Interim Measures in Construction Arbitration

Urgent measures may be necessary to:

• Preserve evidence;
• Prevent disposal of equipment;
• Protect confidential designs;
• Maintain access to the site;
• Prevent an abusive guarantee call;
• Preserve materials;
• Secure assets;
• Maintain the contractual status quo.

Depending on the applicable rules and law, relief may be requested from:

• The arbitral tribunal;
• An emergency arbitrator;
• A competent Turkish court.

Applying to a court for interim protection does not necessarily waive the right to arbitrate.

The appropriate route depends on urgency, enforceability, location of the asset and whether the tribunal has been constituted.

ISTAC Construction Arbitration

ISTAC administers arbitration proceedings for both domestic and foreign parties where the parties have agreed to use the ISTAC Arbitration Rules.

ISTAC may be particularly suitable for construction disputes connected with Turkey because it offers:

• Institutional case administration;
• Standard arbitration;
• Fast-track arbitration;
• Emergency arbitrator proceedings;
• Online hearings;
• Published cost rules;
• A model arbitration clause.

Under ISTAC’s currently published framework, fast-track arbitration applies to claims not exceeding the stated monetary threshold and is intended to produce a final award through a sole arbitrator within three months. Because thresholds may change, parties should verify the rules in force when commencing proceedings.

Smaller payment, variation or subcontract disputes may be suitable for expedited arbitration. Large delay, defect and EPC disputes generally require a fuller procedure.

ISTAC also maintains online-hearing procedures for arbitration participants attending through video or teleconference.

Stages of a Construction Arbitration

A typical proceeding may involve:

1. Review of the arbitration agreement;
2. Request for arbitration;
3. Answer and counterclaims;
4. Constitution of the tribunal;
5. Case-management conference;
6. Procedural timetable;
7. Statements of claim and defence;
8. Document production;
9. Witness statements;
10. Delay and quantum reports;
11. Expert meetings;
12. Evidentiary hearing;
13. Post-hearing submissions;
14. Costs submissions;
15. Final award.

Construction arbitrations may be divided into phases.

For example:

• Jurisdiction may be decided first;
• Liability may be separated from quantum;
• Delay entitlement may be determined before damages;
• Certain claims may be resolved through partial awards.

Bifurcation may save time where a preliminary issue could dispose of a substantial part of the case. It may also create additional cost if the issues are too closely connected.

Calculation of Construction Damages

Construction claims may seek:

• Unpaid contract balances;
• Variation costs;
• Prolongation costs;
• Disruption losses;
• Acceleration costs;
• Financing expenses;
• Repair costs;
• Cost to complete;
• Loss of profit;
• Liquidated damages;
• Interest;
• Arbitration costs.

Each loss must satisfy the applicable requirements concerning:

• Breach;
• Causation;
• Foreseeability;
• Proof;
• Mitigation;
• Contractual limitations;
• Limitation periods.

A damages calculation should avoid double recovery. For example, a contractor should not recover the same site overhead through both a daily prolongation rate and duplicated actual-cost calculations.

The applicable currency and interest rate must also be determined. The tribunal may need to address contractual interest, statutory interest, foreign-currency claims and the dates from which interest accrues.

Recognition and Enforcement of Construction Awards

A Turkey-seated award may be challenged only on limited grounds under the applicable Turkish arbitration legislation.

Foreign construction awards may be recognised and enforced in Turkey under the New York Convention or Turkish private international law, depending on the seat and applicable treaty framework.

The New York Convention is designed to facilitate cross-border recognition of arbitration agreements and enforcement of awards, subject to limited defences such as invalidity of the arbitration agreement, lack of notice, excess of authority, irregular tribunal composition, non-arbitrability and public policy.

The enforcing court does not ordinarily reconsider:

• Delay analysis;
• Expert conclusions;
• Contract interpretation;
• Quantum calculations;
• Witness credibility.

An award creditor should investigate the debtor’s assets before or during the arbitration. A favourable award has limited commercial value where no recoverable assets can be identified.

Legal Solutions for Avoiding Construction Disputes

The most effective construction-dispute strategy begins before the dispute arises.

Use a Clear Contract

The contract should clearly allocate:

• Design responsibility;
• Ground-condition risk;
• Approval responsibilities;
• Variation authority;
• Delay risk;
• Payment procedures;
• Price escalation;
• Force majeure;
• Termination rights;
• Guarantee calls.

Maintain a Realistic Programme

The baseline programme should be achievable and consistent with contractual milestones. Updated programmes should identify actual progress and delay events.

Follow Notice Procedures

Claims and responses should be notified within the contractual period.

Keep Contemporaneous Records

Daily records, photographs, programmes, labour data and cost records should be maintained systematically.

Address Problems Early

A potential dispute should be reviewed before positions become entrenched. Negotiation, mediation and dispute boards may resolve issues while the project is continuing.

Coordinate Related Contracts

The main contract, subcontracts, consultancy agreements and guarantees should contain compatible dispute resolution provisions.

Obtain Early Legal and Technical Advice

Lawyers, delay experts and quantum experts should be involved before the final account where substantial claims are developing.

Frequently Asked Questions

Can construction disputes be arbitrated in Turkey?

Most contractual construction disputes may be arbitrated, provided that the parties have a valid arbitration agreement and the subject matter is arbitrable.

Is ISTAC suitable for construction arbitration?

Yes. ISTAC administers domestic and international arbitrations and provides standard, expedited, emergency and online-hearing mechanisms.

Can a Turkish construction arbitration be conducted in English?

Yes. The parties may select English or another permitted language.

Are FIDIC dispute-board procedures mandatory?

They may be mandatory where the contract makes them a condition before arbitration. The exact wording of the applicable FIDIC form and Particular Conditions must be reviewed.

Can a contractor claim additional costs without a formal variation order?

The answer depends on the contract, governing law, authority of the person issuing instructions, project records and conduct of the parties. Failure to obtain formal approval may create a significant evidentiary and contractual risk.

Can the employer call a performance guarantee during arbitration?

The guarantee’s wording and applicable law are decisive. Urgent interim relief may be considered where the contractor alleges fraud or an abusive call.

Can subcontractor disputes be joined with the main arbitration?

Joinder or consolidation generally requires a legal basis under the arbitration agreements and applicable institutional rules. Inconsistent clauses may prevent a combined proceeding.

Can an arbitral tribunal award delay damages and lost profit?

Potentially yes, where the claimant establishes contractual entitlement, causation, quantum and compliance with applicable legal requirements.

Is arbitration always faster than court litigation?

No. Complex construction cases may take considerable time. Arbitration’s advantage is primarily procedural control, specialist expertise and international enforceability.

Conclusion

Construction arbitration in Turkey provides employers, contractors, subcontractors and investors with a specialised mechanism for resolving technically and commercially complex disputes.

The most common disputes concern delay, extensions of time, variations, payment certificates, defects, design responsibility, unforeseen conditions, disruption, escalation, termination and performance guarantees.

Successful construction arbitration requires more than a legal argument. It requires an integrated analysis of:

• Contractual risk allocation;
• Project chronology;
• Technical causation;
• Notice compliance;
• Programme evidence;
• Cost records;
• Expert methodology;
• Enforcement strategy.

Parties should draft the arbitration clause together with the wider project-contract structure. The clause should identify the institution, seat, language, number of arbitrators and governing law. Multi-stage procedures involving engineers, dispute boards, negotiation or mediation should include clear deadlines and consequences.

During the project, claims should be notified promptly and supported by contemporaneous records. Informal site discussions should not replace formal contractual communications.

Once a dispute arises, early coordination between construction lawyers, delay experts, engineers and quantum specialists can materially improve the quality of the claim or defence.

For projects connected with Turkey, ISTAC offers an institutional framework for domestic and international arbitration, including emergency-arbitrator and online-hearing mechanisms. International construction awards may also benefit from the enforcement framework of the New York Convention.

Ultimately, the effectiveness of construction arbitration depends on disciplined contract administration, precise legal drafting, reliable technical evidence and a realistic recovery strategy.