Construction disputes in Thailand rarely begin with litigation.
They begin with contract gaps, undocumented variations, and inconsistent project management conduct.
Whether the project involves residential developments, hospitality assets, infrastructure, or industrial facilities, most disputes arise from predictable structural mistakes.
Below are six recurring risk areas foreign investors and developers should address at drafting stage.
1. Weak Defect Liability Structuring
Under Thai law (Sections 587–606 Civil and Commercial Code), contractors are responsible for defective work.
However, liability depends on:
• Contract wording
• Acceptance documentation
• Reservation of rights
• Evidence quality
A common mistake is relying solely on statutory protection without strengthening contractual defect clauses.
Defect provisions should clearly define:
• Warranty period
• Inspection procedures
• Repair obligations
• Consequences of non-remedy
Acceptance without reservation may limit future claims for discoverable defects.
Documentation at handover stage is decisive.
2. Failure to Reserve Rights on Delay
Delay disputes frequently arise where:
• Completion milestones are missed
• Liquidated damages clauses exist
• Owners continue making payments
Under Thai practice, conduct during performance matters.
If an owner accepts delayed performance without clear written reservation, courts may interpret this as waiver of delay penalties.
Delay clauses must be supported by consistent enforcement behaviour — not merely contractual wording.
3. Improper Termination for Delay
Termination is high-risk.
To terminate lawfully:
• Written notice must be issued
• A reasonable cure period must be granted
• Breach must remain uncured
Failure to follow statutory notice requirements may expose the terminating party to wrongful termination claims — often exceeding the original delay damages.
Termination clauses must align with statutory procedure.
4. Verbal or Informal Variation Agreements
Extra work claims are among the most common construction disputes in Thailand.
Thai law does not require construction contracts to be in writing.
As a result:
• Verbal variations may be enforceable
• Work performed and accepted may trigger payment obligations
• Owners may lose cost control
Variation procedures should clearly require:
• Written amendment
• Scope confirmation
• Time extension assessment
• Price adjustment mechanism
Without formalised variation control, courts frequently favour contractors where benefit has been accepted.
5. Misunderstanding Burden of Proof in Defect Claims
Even where contractor liability appears obvious, the owner bears the burden of proof.
The owner must prove:
• Existence of defect
• Causation
• Contractor responsibility
• Quantum of damages
Independent expert reports significantly strengthen defect claims.
Construction disputes are evidence-driven, not assumption-driven.
6. Ignoring Enforcement Strategy at Contract Stage
Winning a construction dispute does not guarantee recovery.
Enforcement depends on:
• Contractor asset visibility
• Corporate structuring
• Timing of enforcement
• Dispute resolution clause selection
For arbitration framework, see:
→ Arbitration in Thailand
For execution mechanisms, see:
→ Enforcement of Judgments and Arbitral Awards in Thailand
Dispute resolution clauses should align with anticipated asset geography.
Arbitration vs Litigation in Construction Projects
Medium and large-scale projects often include arbitration clauses.
Arbitration may offer:
• Technical decision-makers
• Confidentiality
• Cross-border enforceability
Court litigation may be suitable for:
• Domestic contractors
• Clear documentary disputes
• Projects with asset base in Thailand
The correct forum depends on commercial context — not default practice.
Strategic Perspective for Investors
Foreign investors and developers should:
• Strengthen defect liability drafting
• Formalise all variation procedures
• Enforce delay clauses consistently
• Maintain detailed site records
• Align termination provisions with statutory requirements
• Integrate enforcement planning at drafting stage
Construction disputes in Thailand are rarely caused by bad faith.
They are caused by structural weaknesses in documentation and conduct.
Conclusion
Thailand provides a structured legal framework for construction disputes.
However, outcomes depend heavily on:
• Documentation discipline
• Procedural compliance
• Evidence preparation
• Strategic clause drafting
Construction law is not primarily about litigation.
It is about risk architecture during project formation.
At Ake & Associates, construction disputes are approached through preventive structuring — with litigation and arbitration positioned as protective mechanisms where commercial alignment fails.
