Forged building permits on Koh Phangan: how to verify a permit is genuine

Can a Koh Phangan building permit turn out to be fake even after your villa is fully built? Yes — on 25 March 2026, Surat Thani authorities confirmed 40 forged building permits tied to properties in the Koh Phangan district, including at least nine completed luxury villas owned by foreign buyers. The case shows why a permit document by itself is not proof of anything; it has to be verified against the issuing office's own records.

What happened

• 8 January 2026 — a design-and-construction company owner filed a complaint against an employee of the Phet Phangan local public works office, alleging fabricated permits.
• 25 March 2026 — authorities confirmed 40 forged building permits across the Koh Phangan district, affecting at least nine fully built luxury villas belonging to foreign owners.
• Consequence for owners — because the underlying permit is fraudulent, the affected villas cannot be issued a house number (Tabien Baan) or proceed through standard property registration until the case is resolved.
• Method — forensic examiners are investigating whether the signatures on the fake documents were applied digitally rather than by the named officials, pointing to a systematic rather than one-off scheme.

Not an isolated case

A parallel scandal surfaced on neighbouring Koh Samui days earlier, on 21 March 2026, when a municipal legal officer publicly urged property owners to verify their permits. That investigation — triggered by a municipal complaint filed 20 January 2026 alleging signature forgery — found close to 10 forged permits in its first pass, on top of more than 100 questionable permits already flagged during 2024–2025 'Samui Model' compliance inspections. The alleged method was a lower-level public works employee producing fraudulent approvals in exchange for bribes reported at roughly ฿100,000 per permit. Officials in both cases say they are pursuing whether more senior staff were involved.

The exposure for a villa owner

A forged permit is not a paperwork inconvenience — it is the difference between a legally built structure and one Thai authorities can treat as unauthorised construction. Reported consequences for owners caught in either scandal include the inability to register a house number, transfer, or sell the property, and exposure to a demolition order if the underlying build is found not to conform to what a genuine permit would have required. See Building a villa on Koh Phangan: permits, zones, timelines for what a legitimate permit process actually involves.

How to verify a permit before you rely on it

• Confirm the permit with the issuing office directly — a Por 1 (Or Bor 1) construction permit is issued by the local Tambon Administrative Organisation (OrBorTor) or municipality; ask the office to confirm the permit number against its own registry rather than accepting the paper copy at face value.
• Verify the architect's and engineer's licences independently — check registration status on the Council of Architects of Thailand (act.or.th) and the Council of Engineers, since a genuine-looking set of stamped plans still depends on a real, currently licensed signatory.
• Have a Thai lawyer cross-check the build against the permit, not just confirm that a permit exists — the constructed footprint, height and use must match what was actually approved.
• Treat a villa without a completed house-number registration as unresolved, not as a minor formality still in progress — that gap is exactly what both scandals exposed.

This risk sits alongside, not instead of, the usual checks on title, zoning and lease structure — see the due diligence checklist and Island eco-zoning: where you can and can't build. A genuine permit confirmed at source is now as essential a check as the title deed itself.