Buying a subdivided plot on Koh Phangan: the Land Allocation Act's 10-plot rule

Does it matter, legally, whether a plot on Koh Phangan was cut from a larger family landholding rather than sold as a single original parcel? Usually not — but once a seller is dividing and selling 10 or more sub-lots from one main parcel, Thailand's Land Development Act B.E. 2543 (2000) requires them to hold a Land Allocation Committee licence, and whether that licence exists changes what obligations (if any) come with your access road and shared utilities.

The 10-plot trigger, and the loophole the law closed

• The threshold is 10 sub-lots sold from one main parcel or adjoining parcels. Below that, a private land sale is unregulated by this Act; at 10 or more, the seller must obtain a licence from the provincial Land Allocation Committee before selling.
• A 3-year anti-evasion rule closes the obvious workaround. If a seller divides land into fewer than 10 sub-lots to avoid the licence requirement, then divides again within three years such that the combined total reaches 10 or more, the licence requirement still applies retroactively to the whole scheme.
• The application is substantial. A licensed allocator must submit title deeds, a sub-lot map, infrastructure and public-facility plans (roads, drainage, utilities), a maintenance plan, sale-agreement terms, and a bank or financial-institution guarantee. The Land Allocation Committee has 45 days to decide; silence is treated as approval.
• Land officials can refuse to register a division they suspect is evading the Act. A registrar who believes a division into fewer than 10 lots is really a staged allocation scheme can require proof it isn't before registering the transfer — which can stall a buyer's transfer if the seller's paperwork doesn't hold up.

Penalties fall on the seller, not the buyer

Selling land as a subdivided allocation without the required licence is a criminal offence for the seller: up to two years' imprisonment and a fine of ฿40,000-100,000. This doesn't invalidate a buyer's own title once registered — the penalty targets whoever ran the unlicensed allocation, not the person who bought a lot from them. The real risk to a buyer is indirect: a seller cutting corners on the licence often cut the same corners on the infrastructure the licence would have obligated them to build and maintain.

What this means for a Koh Phangan buyer

• Ask directly if the plot is part of a larger recent subdivision. If a seller (or a single family estate) is offering several similarly-sized new plots cut from one parcel, that's the scenario this Act is built for — worth asking whether a Land Allocation Committee licence was obtained, especially once the count of plots being sold approaches ten.
• A licence means someone is on the hook for shared infrastructure. A licensed allocation comes with an approved plan for roads, drainage and utilities, and a maintenance obligation on the developer. An unlicensed, informal subdivision has none of that — whatever access road exists was built informally and nobody is legally required to maintain it.
• Registered access still matters most. Whether or not the parent parcel went through the licensing process, what actually protects you is a right of way registered on the back of your own title deed — see Landlocked land: way of necessity vs servitude for the two mechanisms that create one, and don't rely on an unregistered shared track just because neighbouring plots use it too.
• Fold this into standard due diligence. This is one more question to raise alongside the checks already covered in Due diligence before buying on Koh Phangan and Land titles: Chanote vs Nor Sor 3 — it doesn't replace them.

None of this should scare a buyer off subdivided land, which is common and often perfectly fine on Phangan's family-owned interior and hillside parcels. It's a reason to ask one extra question — was this parcel formally allocated, and if so, by whom — before assuming the access road you're looking at is anyone's legal responsibility besides your own.