Editorial
Koh Samui and Koh Phangan Property Risks for Foreign Buyers in 2026
By THAI.ESTATE Editorial Team14 min read
Foreign buyers face a structurally changed enforcement environment on Koh Samui and Koh Phangan. This is not a temporary crackdown. The Interior Ministry's active nominee investigations in Surat Thani province - the administrative area covering both islands - are part of a widening national campaign targeting illegal foreign control of Thai assets. If you are considering property on either island, the core question is not 'where is the best beach view' but 'which ownership structure is legal and which exposes you to forced disposal or criminal liability?'
The only fully legal path to freehold ownership for a foreign individual in Thailand remains the condominium unit, under the Condominium Act. Villas and land acquired through Thai nominee companies now carry acute legal risk on both islands. This guide explains exactly what that means for your purchase decision.
Quick answer
- The only legal freehold route for a foreign buyer on Koh Samui or Koh Phangan is a condominium unit in a building where foreign-quota units (maximum 49% of total floor area) are available
- Nominee company structures - where Thai nationals hold shares on behalf of a foreign buyer to circumvent land ownership rules - are under active criminal investigation in Surat Thani province as of August 2026
- Per Khaosod English, August 2026: roughly 9,281 of 25,864 registered entities in Surat Thani province have foreign ownership above 49%, breaching Thai law
- Koh Samui alone has 12,906 registered entities under scrutiny; Koh Phangan has 5,009, per the same source
- Under Thai law, land acquired through illegal nominee structures can be ordered sold within 180 days to one year of a ruling, with owners receiving whatever the forced sale yields
- Leasehold structures (typically 30-year terms, renewable by contract) remain available for villas, but carry their own risks outlined below
Options and scenarios
Option 1: Condominium freehold - the legally clean path
A chanote title (the highest-grade Thai land title, confirmed by coordinates and boundary survey) held in your name as a foreign individual is possible for a condominium unit, subject to the 49% foreign-quota rule. This means no more than 49% of the total floor area in any given registered condominium building may be held by non-Thai nationals.
On Koh Samui the condominium market is small relative to the villa market. Most of what is sold and marketed as a 'villa investment' is land-plus-structure, which a foreign individual cannot legally own outright. Genuine condominiums with available foreign-quota units exist on the island but supply is limited. Before committing, you must verify with the juristic person (the building's management entity, established under the Condominium Act to run common areas and collect maintenance fees) exactly how many foreign-quota units remain available in that specific building.
Koh Phangan has an even thinner condominium market. The island's development has been dominated by smaller boutique villa projects, most of which use the nominee or leasehold structures now under scrutiny.
Key practical points for condo buyers:
- Funds for the purchase must be remitted from overseas in foreign currency and converted in Thailand. The bank will issue a Foreign Exchange Transaction (FET) form - previously called a Thor.Tor.3 - which is your proof of compliant foreign-currency transfer. Without this document you cannot register foreign freehold ownership at the land office
- A sinking fund (a one-time capital reserve paid at transfer, used for major future building repairs) is standard in Thai condominiums. Indicative figures range from THB 300 to THB 700 per square metre depending on the project, as of 2026 market estimates
- Monthly common-area fees (called 'CAM fees' or maintenance fees) on Koh Samui projects range from roughly THB 50 to THB 120 per square metre per month, per market estimates. These vary widely by project age and facilities
Option 2: Leasehold villa or land - legal but structurally limited
A registered long-term lease is the most common structure used by foreign buyers who want a villa or a beachside plot. Thai law allows a maximum 30-year registered lease, recorded at the land office against the title deed. Some developers offer a second 30-year option clause in the contract, but that second term is not automatically enforceable; it depends on the landowner's cooperation or a court ruling at the time of renewal.
Leasehold is not ownership. You do not hold the chanote. If the landowner dies, disputes with heirs can arise. If the landowner's estate has debts, creditors may attach the land. Your lease should be clearly registered at the land office (not just in a private contract) to be enforceable against third parties.
In the current enforcement climate, leasehold structures are not the subject of the nominee investigations, provided the Thai landowner is a genuine owner and not a nominee. However, if the land beneath your villa is registered to a Thai company where the real beneficial owner is a foreigner above the 49% threshold, that company - and therefore your lease - could be subject to forced disposal proceedings.
Before signing any leasehold agreement, your due diligence must confirm the background of the Thai landowner or company holding the title. A Thai property lawyer (independent of the developer and the agent) should search the land office records and the company's shareholder register.
Option 3: Thai company land ownership - now the highest-risk structure
Historically, some foreign buyers set up Thai limited companies with Thai nominees holding the majority of shares, then used that company to buy land and build a villa. The foreign buyer controlled the company in practice while complying with the letter of the law only on paper.
This is precisely what the Interior Ministry investigations target. Per Global 1 News, August 2026, authorities are now tracing ownership structures, financial flows, and Thai shareholders involved in nominee arrangements across condominium and land purchases. Enforcement extends beyond Phuket to Surat Thani province specifically.
If you currently hold property through such a structure, you face real legal exposure. If you are considering buying through such a structure, the risk is acute: land ordered divested under the Land Code must be sold within 180 days to one year, at whatever the market yields at the time of forced sale. There is no compensation mechanism from the government.
A legitimately operating Thai company with genuine Thai shareholders who are actual business partners (not nominees) can still legally own land. But the bar for proving genuine business purpose and genuine Thai shareholder status is now being applied by active investigators, not just paper compliance.
Option 4: Board of Investment (BOI) or Treaty-based land rights
Certain promoted investment categories under the Board of Investment allow a foreign individual to hold up to one rai (1,600 square metres) of land for residential use, subject to qualifying investment thresholds and BOI approval. As of 2026, the minimum qualifying investment stands at THB 40 million in approved assets held for at least three years. This is a narrow pathway, rarely used for residential property alone, and requires ongoing compliance. It is worth noting for high-net-worth buyers but should not be treated as a standard route.
Comparison table
| Parameter | Condo freehold | Registered leasehold | Thai company (nominee) | BOI land right |
|---|---|---|---|---|
| Legal for foreigners | Yes, within 49% quota | Yes (lease only, not ownership) | No, if nominees used | Yes, if qualifying criteria met |
| Title held in your name | Yes (chanote) | No (title stays with landowner) | No (title in company name) | Yes (up to 1 rai) |
| Current enforcement risk | Low to medium (quota rules apply) | Low to medium (depends on landowner background) | Very high - active investigations | Low if BOI-compliant |
| Forced disposal risk | No, if quota compliant | Indirect (if landowner is a nominee) | Yes - 180 days to 1 year to sell | No, if compliant |
| Typical entry price, Koh Samui (2026 market estimates) | THB 3 - 7 million for a 1-bedroom unit | THB 5 - 20 million for a 2-3 bedroom villa | THB 5 - 25 million (all sizes) | THB 40 million minimum qualifying investment |
| Rental income flexibility | Moderate - building rules apply | High - villa flexibility | High but legally compromised | Moderate |
| Resale to another foreigner | Straightforward within quota | Assignable if lease terms allow | Complicated - now actively flagged | Possible but process is complex |
| Recommended for most buyers | Yes | With strong due diligence | No | Only for large qualifying investments |
Risks and mistakes
Assuming the nominee structure is 'normal practice' and therefore safe
Many buyers are told that nominee company ownership is 'how everyone does it' on the islands. That may have described past practice. It does not describe the current legal environment. Per Khaosod English, August 2026, 112 land entities in Surat Thani have already been identified as holding foreign shareholdings above legal thresholds, covering 124 plots totaling roughly 86 rai 3 ngan 42.4 square wah. Legal proceedings for land disposal are underway for some of these plots. This is not a hypothetical risk.
Buying off-plan without verifying the condominium's foreign-quota availability
A developer may market units as 'freehold for foreigners' while the building's foreign quota is already fully used, or the project has not yet obtained its condominium licence (EIA approval and construction permit are earlier stages; the condominium licence is what creates the legal structure for individual unit titles). If you pay a deposit before the licence is issued, you have limited legal protection. Always obtain the condominium licence number and verify quota availability at the land office before transferring funds.
Relying on a renewable lease clause as equivalent to ownership
A contract that says a lease 'may be renewed for a further 30 years' is a contractual promise, not a property right. If the landowner dies, is adjudicated bankrupt, or simply refuses to renew, you will need to litigate. Thai courts have not consistently enforced second-term lease clauses as automatic rights. Treat a 30-year lease as a 30-year lease and price it accordingly.
Not obtaining an independent legal opinion
Developers on both islands sometimes offer a 'recommended lawyer' who is in practice closely connected to the sales process. Your legal adviser must be independent of the developer, the agent, and the landowner. The lawyer should review the chanote or title deed at the land office (not just a copy provided by the seller), check for encumbrances, verify company shareholder registers, and confirm FET documentation requirements before you sign anything.
Underestimating the rainy season impact on rental income
Koh Samui's low season (roughly October to December, peaking in November) brings heavy rain, frequent flight cancellations from Samui Airport, and sharply reduced tourist arrivals. Koh Phangan's low season overlaps but is slightly less severe. If your investment thesis depends on year-round short-term rental income, model your cash flow on 7 to 8 occupancy months rather than 12. Actual occupancy rates vary by location and property type; market estimates suggest that well-managed short-term rentals on Koh Samui achieve 55% to 70% annual occupancy on average, weighted by the strong November-to-May peak.
Ignoring infrastructure constraints
Koh Samui has one small airport (Samui Airport) operated under a single-operator concession; flight options are more limited and typically more expensive than Phuket. The road network on both islands is narrow and congested during peak season. Koh Phangan has no commercial airport; access is by ferry from the mainland (Donsak pier, roughly 90 minutes) or from Samui (roughly 30 minutes by speedboat). This affects both personal use and your property's rental attractiveness to visitors with limited time.
Overlooking healthcare access
Koh Samui has Bangkok Hospital Samui, a private international-standard facility. For serious trauma or complex procedures, medical evacuation to the mainland is sometimes required. Koh Phangan has smaller clinics; the main hospital is a government facility. If you are purchasing for long-term retirement or family residence, healthcare access on Koh Phangan is materially weaker than on Koh Samui and far weaker than Bangkok or Phuket.
FAQ
Can a foreigner legally own land on Koh Samui or Koh Phangan?
No, not under standard rules. Thai law (the Land Code) prohibits foreign individuals from owning land. The only exceptions are very specific: Board of Investment qualifying investments above THB 40 million, or Treaty-based rights (which Thailand no longer actively grants for residential land). If someone is offering you land freehold in your personal name outside these exceptions, that offer is not legally sound.
Is buying a condominium on Koh Samui safe for a foreign buyer?
It can be, provided the foreign-quota rule (maximum 49% of total floor area in the building held by non-Thai nationals) is met, the building holds a valid condominium licence, and you remit funds from abroad in foreign currency with a proper FET form. The risks are lower than villa or land purchases, but you still need independent legal due diligence and quota confirmation at the land office before transfer.
What happens to buyers who already own property through a Thai nominee company?
If investigators determine the company was established to circumvent land ownership restrictions, the land can be ordered sold within 180 days to one year of a legal ruling, per the Land Code. The buyer receives the proceeds of the forced sale, which may be at a discount to market value. Criminal liability for nominees and the foreign beneficial owner is also possible under the Foreign Business Act. If you are in this situation, consult an independent Thai property lawyer immediately.
What does the Surat Thani nominee investigation mean practically for new buyers?
It means the risk of buying through a nominee company on Koh Samui or Koh Phangan has moved from theoretical to actively enforced. Per Khaosod English, August 2026, 9,281 entities in the province have foreign ownership above 49%, and 112 land entities are already facing legal proceedings. New purchases structured the same way will face the same scrutiny. The enforcement environment is structural, not a temporary campaign.
Is a 30-year leasehold villa on Koh Samui a reasonable purchase?
It is the most practical structure for a foreign buyer who wants a villa rather than a condominium. But 'reasonable' depends on price, the legal soundness of the lease registration, and the background of the Thai landowner or company holding the title. If the landowner is a nominee for another foreigner, the lease is indirectly exposed to the same forced-disposal risk. Due diligence on the landowner's identity and shareholder structure is essential.
How does Koh Samui compare to Koh Phangan for property investment?
Koh Samui offers a larger property market, better infrastructure, international hospital access, an airport, and more established rental demand. Koh Phangan has lower entry prices, a strong community of long-stay remote workers around Baan Tai and Srithanu, and growing interest from wellness-focused buyers. However, Koh Phangan's thinner condominium market means legal freehold options are scarce. Investment risk is higher on Koh Phangan for buyers without a strong local network and professional legal support.
What is a chanote title and why does it matter?
A chanote (Nor Sor 4 Jor) is the highest-grade land title in Thailand. It is surveyed by the Department of Lands using GPS coordinates and confirmed boundary markers. It is the only title type you should accept as the basis for a condominium unit purchase or a leasehold agreement. Lower-grade titles (Nor Sor 3, Sor Por Gor) offer weaker legal protection and limited ability to subdivide or transfer cleanly. Always ask a lawyer to confirm the title grade before proceeding.
Does widening the crackdown affect condominiums as well as land?
Yes, to a degree. Per Global 1 News, August 2026, authorities are tracing ownership structures in condominiums too, looking for cases where foreign ownership exceeds the 49% quota through proxy Thai buyers or nominee arrangements within condominium buildings. A properly purchased condominium unit - paid from foreign-currency funds with a valid FET form, below the 49% building quota - is not the target of these investigations. But irregularly purchased units in buildings where the quota was exceeded through nominee Thai buyers face scrutiny.
What should I look for when hiring a property lawyer on these islands?
Your lawyer must be independent of the developer, the selling agent, and the landowner. Ask for confirmation that they will search the land office records in person (not just review copies supplied by the seller), verify the company shareholder register if a company is involved, and provide written advice on ownership structure legality. Fees for a full due diligence review typically range from THB 20,000 to THB 60,000, as of 2026 market estimates, depending on complexity.
Who should not buy property on Koh Phangan right now?
Buyers seeking a legally clean freehold asset face very limited condominium supply on Koh Phangan. Buyers who require reliable year-round airport access, international-standard healthcare, or strong rental demand from mainstream tourists will find Koh Samui or Phuket more suitable. Anyone considering a villa purchase through a Thai nominee company on Koh Phangan faces the highest risk profile of any property category on either island, given the active Surat Thani investigations.
Planning a property purchase in Thailand? Send us your requirements - the THAI.ESTATE team will reply with specific options and a safety checklist for your case.