Builder defects after handover: how long your Thai contractor is liable (CCC 598-600)

How long can you claim against your builder for defects in a villa on Koh Phangan? Under the Civil and Commercial Code (CCC) rules on hire of work (Sections 587-607), and unless your contract provides otherwise, the contractor is liable for defects appearing within one year after delivery, or five years where the work is a structure on land other than a wooden building (Section 600). The limit does not protect a contractor who concealed the defect.

The key rules

• Section 600 — defect period. Default one year after delivery; five years for a permanent structure on land (not wooden). Contract terms can differ, so read the warranty clause.
• Section 598 — acceptance. If you accept defective work, expressly or impliedly, the contractor is generally not liable — except for defects that could not have been discovered at acceptance, or that the contractor concealed.
• Section 599 — withholding payment. For late or defective delivery you may withhold the remuneration unless the contractor gives proper security.
• Controlled-contract overlay. A personal-use residential build also falls under consumer contract control; see the controlled-contract guide.

Practical steps for a Phangan villa build

• Do a written snag list before accepting. Silent acceptance can be read as implied acceptance under Section 598; record defects and reserve rights in writing.
• Tie the final instalment to handover. Keep a retention until defects are fixed (Section 599), rather than paying in full on completion.
• Write the warranty into the contract. State period, scope (structure, waterproofing, roofing, electrics) and who repairs; island conditions such as salt air and heavy rain make this worth specifying.
• Keep dated evidence. Photos, inspection reports and messages help prove when a defect appeared and whether it was hidden.
• Mind the clock. Court claims also face limitation periods; see limitation periods for property claims.
• Unpaid builder? The builder has remedies too; see the contractor lien guide.

Takeaway: assume you have a short window. Inspect hard before acceptance, hold back part of the price, and put an explicit warranty in the contract. The English texts of the sections cited are unverified translations; the Thai originals govern, so have a Thai lawyer confirm your position before a dispute.