What Documents Check Buying Thailand (2026)
Complete document checklist for buying property in Thailand: Chanote title deed, EIA, building permit, foreign quota certificate, SPA review, FET.
What Documents to Check When Buying Property in Thailand?
Buying property in Thailand without verifying the right documents is one of the most expensive mistakes a foreign investor can make. The essential document checklist includes: Chanote (NS4j) title deed, building permit, EIA certificate (where applicable), developer company registration, foreign quota certificate, condominium juristic person certificate, Sale and Purchase Agreement (SPA) draft, and FET certificate requirement for registration. This guide explains what each document is, why it matters, how to verify it independently, and what to do if a document is missing or unclear. Every item should be confirmed by your own Thai lawyer, not taken on trust from the developer or agent.
Document 1: Chanote (NS4j): The Title Deed
Why it matters: For foreign buyers purchasing a condo freehold, the unit must have a Chanote (the building’s land must be on Chanote, and the individual unit is registered separately in the condominium register). Lower title types (Nor Sor 3, Sor Kor 1) carry significantly more legal risk.
How to verify:
- Request the Chanote from the seller/developer
- Your lawyer can verify it at the local Land Office (Samnak-ngan Tee-din / สำนักงานที่ดิน) in Phuket
- Check for any registered encumbrances, mortgages, or third-party rights noted on the back of the deed
Red flags:
- Title is not a Chanote (seller offering Nor Sor 3 or lower as “equivalent”)
- Names on the Chanote don’t match the selling party
- Any encumbrance not disclosed upfront
Document 2: Building Permit (ใบอนุญาตก่อสร้าง)
Why it matters: Construction without a permit is illegal in Thailand. Buildings constructed without proper permits can be ordered to demolish additions, cannot obtain occupation certificates, and face ongoing legal risk. Buyers of units in illegal constructions inherit these risks.
How to verify:
- Request the building permit number and issuance date from the developer
- Your lawyer or a licensed Thai engineer can verify with the issuing authority
- Check the permit covers the building as constructed (some projects add floors or units beyond the permitted design)
For off-plan projects: If a building permit has not been issued but marketing has begun, ensure your SPA includes a provision for full refund if the permit is denied.
Document 3: EIA Certificate (ใบอนุญาต EIA)
Why it matters: Without EIA approval, construction cannot legally proceed for projects that require it. Developers who skip this step face enforcement action that can halt or reverse construction.
How to verify:
- Request the EIA certificate reference number
- Your lawyer can verify with the Office of Natural Resources and Environmental Policy and Planning (ONEP)
- For projects in sensitive zones (beachfront, hillside), EIA requirements are more stringent
Note: Not all projects require EIA, your lawyer should confirm applicability for the specific project.
Document 4: Developer Company Registration
Documents to request:
- Company registration certificate (หนังสือรับรองบริษัท) from the Department of Business Development
- List of current directors
- Evidence of paid-up capital
How to verify:
- DBD.go.th, search by company name or registration number
- Check registration date (companies incorporated less than 2 years ago for a large project are higher risk)
- Check if any directors are listed as defendants in court cases
What to look for: Paid-up capital relative to project size. A developer with ฿1,000,000 ($31,000) in registered capital launching a ฿500,000,000 ($15M) project is raising a question about financial capacity.
Document 5: Foreign Quota Certificate
Why it matters: If you purchase a unit in a building where the foreign quota is full or near full, you cannot register freehold ownership in your name. You’d be forced into a Thai company structure or leasehold, dramatically affecting both your legal position and resale options.
How to verify:
- Request the current foreign quota status from the developer (they should know this precisely)
- Your lawyer can independently verify with the Land Office condominium registration
- Check that the unit you’re buying is specifically allocated within the foreign quota
For resale units: Always check the foreign quota status of an existing building at the Land Office before purchasing a resale unit. Quota can change as other foreign buyers purchase and sell.
Have questions about a specific project's documents?
MORE Group's team and legal partners can verify documents for any Phuket project, free initial consultation.
Document 6: Condominium Juristic Person Certificate
Why it matters: Without an established juristic person, the developer retains indefinite control over common areas. This creates conflicts of interest and can lead to neglected maintenance, mismanaged funds, and disputes at resale.
How to verify: Your lawyer can check the juristic person registration at the Land Office.
For off-plan projects: Ask when the juristic person will be established (typically at or just before handover) and what the governance structure will look like.
Document 7: Sale and Purchase Agreement (SPA)
Critical clauses to verify with your lawyer:
| Clause | What to Check |
|---|---|
| Property description | Does the unit number, floor, and sqm match what you’re buying? |
| Purchase price and currency | Confirmed in THB and/or USD/EUR as applicable |
| Payment schedule | Clear milestone dates and amounts |
| Handover date | Specific date + penalty clause for delay |
| Defect liability | How long does developer warranty last (minimum 1 year)? |
| Cancellation / refund | Under what conditions and on what timeline? |
| Force majeure | What qualifies? How does it affect handover obligations? |
| Furniture inclusion | What is included in the purchase price (furniture package or not)? |
| Title type | Explicitly states freehold Chanote, foreign quota unit |
| Dispute resolution | Thai courts? Arbitration? |
Standard practice: Your lawyer should review the SPA before you sign. Budget 1-2 weeks for review and negotiation of terms. A developer who refuses any modification to a boilerplate SPA is a yellow flag, legitimate developers expect buyers to negotiate reasonable protections.
Document 8: FET Certificate: Foreign Exchange Transaction
Why this is critical:
- Without FET, you cannot register freehold
- The FET links the inbound foreign currency remittance to the property purchase
- If you pay in cash from a Thai bank account (THB funds already in Thailand), you may not have a qualifying FET, this needs to be structured carefully
How to obtain:
- Remit funds from overseas to a Thai bank account in foreign currency (USD, EUR, GBP, etc.)
- The Thai bank converts to THB and issues the FET certificate
- The certificate must reference the purchase amount and be in your name
- Keep this certificate: you need it at the Land Office transfer and for any future resale (it evidences you brought money in legally)
Common mistake: Some buyers bring funds into Thailand through informal channels or pay in USD cash, which means no FET certificate, which means no freehold registration. Plan this carefully with your bank before the purchase.
Typical FET timeline from overseas wire to certificate issuance: 3-7 business days through a major Thai bank branch. Budget $860-$2,300 (฿30,000-80,000) for independent legal review of the SPA and Land Office transfer, minor relative to a $180,000-$350,000 Phuket condo ticket.
Document 9: Occupation Certificate / Certificate of Habitation
Why it matters: Without this, the building may not legally be habitable, and units cannot be properly registered. For off-plan purchases, this is typically obtained by the developer near handover.
How to verify: Request it from the developer for completed projects. For off-plan, confirm in the sale and purchase agreement that obtaining it is the developer’s obligation before handover, and that your final payment is conditional on it.
The trap to watch for is a building that is physically finished, occupied and operating while this certificate is still outstanding. That happens more often than buyers expect, and the practical consequence is that unit registration can be delayed even though everything looks complete. If a developer is pressing for the final payment while the certificate is pending, that sequence is the wrong way round and the contract should say so.
Buyer scenarios: which documents matter most for you?
| Buyer profile | Priority documents | Can defer (with lawyer sign-off) | Red flag if missing |
|---|---|---|---|
| First-time foreign buyer, off-plan condo | SPA refund clauses, EIA, building permit, developer DBD, quota letter | Occupation cert (pre-handover) | No EIA on 80+ unit project |
| Resale freehold condo, ready building | Chanote, quota cert, juristic person, FET plan | Developer DBD (if completed) | Quota full at Land Office |
| Villa buyer, leasehold path | Registered lease draft, land Chanote, structure permit | Foreign quota (N/A for land) | Oral 30-year promise only |
| Remote buyer, never visiting | FET path, SPA escrow milestones, video walkthrough + permit copies | Physical Chanote inspection (lawyer can pull) | Cash to agent personal account |
| Investor buying 2 units same building | Quota headroom for both units, juristic short-stay rules | Single occupation cert copy | Same quota allocation claimed twice |
Scenario A, $130,000 studio off-plan in Bang Tao: Request building permit number, EIA reference (if threshold met), and SPA clause returning 100% of reservation deposit if permit denied within 180 days. Verify developer paid-up capital versus project size, a ฿1,000,000 registered capital developer launching a ฿500,000,000 project is a yellow flag.
Scenario B, $240,000 resale 1BR, foreign quota: Your lawyer pulls Land Office quota status independently. Even if the agent says “quota available,” confirm the unit sits inside the 49% foreign allocation, not a Thai-nominee-held slot.
Scenario C, villa with 30-year lease: Focus on registered lease exceeding 3 years, inheritance clause, and land Chanote encumbrances. Condo FET rules differ from leasehold payments, structure milestones with counsel before the 20% construction payment.
Pros and cons of rushing vs thorough document review
Pros of moving quickly. In a genuinely competitive launch, speed occasionally wins an allocation that a slower buyer loses, and on a resale a seller weighing two similar offers will favour the one that can complete. That is real, and it is the only argument on this side.
Cons of moving quickly. Every document above exists because someone lost money without it. Reviewing them takes days rather than weeks and the checks run in parallel, so the time saved by skipping them is small. What is not small is the exposure: a deposit paid into a project whose contract contains no refund provision, a unit that cannot be registered in your name because the quota was full, or a title with an encumbrance that survives the transfer.
How to have both. Negotiate the reservation window rather than the document list. Ask for three to four weeks on a first purchase, ask what happens if a check is still outstanding when it expires, and start the searches on day one rather than day ten. A developer who will extend while your lawyer completes a Land Department search is behaving normally; one who will not has told you that the pressure is the product.
Who obtains each document, and who should not
A recurring pattern in problem transactions is that every document was seen and none of it was independently obtained. The distinction matters more than the list.
Documents your own lawyer should obtain directly, not accept as copies: the title deed extract and its encumbrance page, the corporate record of the entity signing your contract, and any court search. These are the checks whose entire value lies in their provenance. A photocopy handed over by a seller proves that a document existed at some point, which is not the question you are asking.
Documents you should require in writing from the juristic person, not from the sales office: the foreign quota position naming your unit, the debt-free certificate, the common area maintenance rate with its history, and the sinking fund balance. The sales team may relay these accurately and they have no authority over them.
Documents the developer legitimately provides: the building permit, environmental approval where required, the occupation certificate, condominium registration, and the approved plans. Here the check is not provenance but comparison, so have your lawyer compare the approved plans against the floor plan attached to your own contract rather than reading them in isolation.
Documents only you can produce: the FET evidence for your inward remittances, which is issued by your receiving bank as each transfer lands. Nobody can obtain these for you afterwards, and reconstructing them is difficult and sometimes impossible.
Document verification timeline (typical 2026 Phuket condo)
Cross-check ownership mechanics in foreign quota in Thai condominiums and the step-by-step due diligence process in Thailand.
Frequently Asked Questions
The Chanote (NS4j) title deed is the most critical document. It confirms the highest level of land ownership in Thailand with GPS-verified boundaries and full legal protections. For condo purchases specifically, also confirm that the foreign quota is available, without it, you cannot register freehold ownership in your name regardless of how clean the Chanote is.
A Foreign Exchange Transaction (FET) certificate is issued by a Thai bank when you remit foreign currency to Thailand and convert it to THB. For freehold condo registration at the Land Office, foreign buyers must present an FET certificate showing the funds came from abroad. Without it, you cannot register freehold. Ensure your funds are remitted from overseas through official banking channels, not paid from an existing Thai account in THB.
Legally yes, but practically it is a significant risk. Thai property law has numerous nuances, foreign quota rules, EIA requirements, SPA protections, FET requirements, that require specialist knowledge. An independent Thai lawyer (budget ฿30,000-80,000 / $800-$2,200) will identify issues before you commit funds, review the SPA for buyer protections, and manage the Land Office transfer. This cost is minor relative to the amounts being transacted.
Your SPA should explicitly include a clause providing for a full deposit refund if EIA approval is denied. Without this clause, you may lose your deposit if the project is modified or cancelled due to EIA conditions. Never pay substantial deposits (20%+) on a project without EIA approval unless your SPA has robust protection written in.
Your independent Thai lawyer can verify the foreign quota status directly at the Phuket Land Office. The Land Office maintains a condominium register showing total registered area and the portion allocated to foreign owners. Some agents and developers will provide this information directly, but always verify independently, as quota status changes with each transaction.
Related Guides:
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Phuket Real Estate Experts
The MORE Group team has helped 500+ European and American buyers purchase property in Thailand. We provide legal support, 0% commission, and on-the-ground expertise with 8 years in the Phuket market.
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