Editorial
How to Vet a Thai Property Developer: 7 Checks for 2026
By THAI.ESTATE Editorial Team12 min read
Vetting a Thai property developer before you pay anything is the single most important step a foreign buyer can take. Thailand has no central developer-licensing register and no buyer-protection fund equivalent to those in the UK or Australia. If a developer fails mid-construction, your money is at risk with very limited legal recourse. The answer is a structured verification process you start before signing anything.
The seven checks below cover what you can do online from abroad and what requires a qualified Thai lawyer on the ground. Work through all seven. Skipping any one of them has a documented cost.
Quick answer
- Check the land title first. A project must sit on a chanote (full title deed, NS-4) or, at minimum, a Nor Sor 3 Gor. Any lesser title is a red flag.
- Verify the building permit and EIA before paying a deposit. Renders sold before permits are issued are a known risk pattern in Thailand.
- Demand proof of construction financing. If a developer relies entirely on buyer instalments to build, you carry the construction risk.
- Review the payment schedule against real milestones. Legitimate schedules link each payment to a verified construction stage, not to calendar dates.
- Search completed-project history. A developer who has delivered zero completed projects is unproven, regardless of marketing materials.
- Run a litigation check through the Thai Courts database. Pending or past lawsuits from buyers are a measurable signal.
- Hire an independent Thai property lawyer. Budget roughly 15,000 to 40,000 THB (indicative, 2026 market rates) for due diligence on a condo unit purchase.
Options and scenarios
How do I check a Thai developer's track record?
The direct answer: look for delivered projects, not promised ones.
Ask the developer for a list of completed projects with addresses and completion dates. Then verify independently. Visit or hire a local professional to visit. Search the project name in Thai-language news sources (Google Translate works adequately for headlines). Cross-reference with the Land Department database via your lawyer.
A developer with three or more delivered projects in the same price segment and similar construction type carries meaningfully lower execution risk than a first-project developer. First-project developers are not automatically fraudulent, but you should apply a higher standard of scrutiny to every other check.
Historical delivery delays matter as much as completions. A project delivered 24 months late is a red flag even if it was eventually completed. Ask for the originally promised handover date and the actual date for each reference project.
How do I verify the land title behind a project?
Title verification is not optional. It requires a Thai lawyer or licensed land surveyor.
The Thai Land Code creates several classes of title. The only classes suitable for a freehold condominium project are:
- Chanote (NS-4): Full ownership title, GPS-surveyed boundaries. This is the only title that can support a condominium registration under the Condominium Act.
- Nor Sor 3 Gor: Surveyed but not GPS-confirmed. Legally sound but less precise.
If the land title is a Nor Sor 3, Sor Kor 1, or any possession certificate (Por Bor Tor 5), the project cannot legally be registered as a condominium. A lawyer checks this at the local Land Office (Samnak Ngan Thi Din). This check costs a few hundred baht in official fees and takes one to two working days.
Also check whether the land has any mortgage or encumbrance registered against it. If the developer has borrowed against the land, the lender has a prior claim.
How do I check for an EIA and building permit?
Building permits and Environmental Impact Assessments (EIAs) are public records.
For a condominium project with more than 79 units or a height above 23 metres, Thai law requires an EIA approved by the Office of Natural Resources and Environmental Policy and Planning (ONEP) before a building permit can be issued. Your lawyer requests copies of both documents from the relevant local authority, typically the municipality (tessaban) or the provincial administrative organisation.
A red flag that has real cost consequences: developers marketing off-plan units before the building permit is issued. If the permit is later refused or conditioned, the project cannot proceed as shown. You may recover your deposit contractually, but litigation in Thailand is slow and expensive. Prevention is the only practical protection.
How do I assess construction financing?
Ask directly: 'How is this project financed?' A professionally run developer will answer clearly. Typical structures are:
- Bank construction loan: A Thai commercial bank has assessed and approved credit against the project. This provides independent validation of the developer's financial standing. It does not guarantee completion, but it means a bank has done its own due diligence.
- Pre-sales financing (buyer instalments fund construction): The developer builds as buyers pay. This is legal and common in Thailand, but it means your money is the construction budget. If sales slow, construction can stall.
- Equity-funded: Developer uses own capital. Rare for large projects. Verify the developer's balance sheet strength through your lawyer if this is claimed.
The risk is not that pre-sales financing exists - it is that the developer has no fallback if sales underperform. Ask for the minimum pre-sales threshold required before construction starts and get the answer in writing.
What does an aggressive payment schedule look like?
In Thailand, a standard off-plan payment schedule typically looks like this (indicative figures):
- Reservation deposit: 50,000 to 200,000 THB
- Contract signing (within 30 days): 10 to 20% of purchase price
- Foundation completed: 10 to 15%
- Structure completed: 10 to 15%
- Construction completed: 10 to 15%
- Transfer of title: remainder (often 25 to 40%)
A red flag schedule demands 40% or more before construction starts, or ties large payments to calendar dates rather than verifiable construction milestones. If a developer asks for 50% on signing for a project where the building permit has not been issued, that is a high-risk structure.
Insist that your sale and purchase agreement defines each milestone in physical terms (e.g. 'columns of all floors poured and certified by the project engineer') rather than as dates.
How do I check litigation history?
The Thai Courts of Justice maintain a public case-tracking system at www.coj.go.th. Search the developer's registered company name in Thai script (your lawyer provides this). Look for civil cases, particularly suits brought by other buyers.
Also search the developer company name in the Thai Business Development Department (DBD) database at www.dbd.go.th. This shows registered capital, directors, and annual financial filings. A company with registered capital of 1,000,000 THB selling 500,000,000 THB worth of units has a structural financial mismatch worth noting.
What can I realistically check online versus what requires a lawyer?
This is a practical distinction worth making explicit:
You can do online from abroad:
- DBD company registration and director search
- Google searches for the developer name plus 'complaint', 'lawsuit', 'delay'
- Satellite imagery of the plot via Google Maps or similar (confirms the site exists and matches stated location)
- Thai Courts case search with the Thai company name
- ONEP EIA database (searchable in English at eia.onep.go.th)
Requires a lawyer or professional in Thailand:
- Land Office title check (chanote verification, encumbrance check)
- Building permit copy from municipality
- Condominium registration confirmation from the Land Department
- Sale and purchase agreement review and negotiation
- Juristic person (the elected committee that manages a registered condominium building) financial health check for resale units
Comparison table
| Check | Can you do it remotely | Requires lawyer | Cost (indicative) | Time needed |
|---|---|---|---|---|
| Developer company registration (DBD) | Yes | No | Free | 1 hour |
| Litigation search (COJ database) | Partially | Recommended | Free to low | 1-2 days |
| Land title (chanote) verification | No | Yes | 2,000-5,000 THB | 1-2 days |
| Building permit check | No | Yes | Included in due diligence | 2-3 days |
| EIA approval check | Partially (ONEP site) | Recommended | Free to low | 1-2 days |
| Construction financing proof | Partially (ask developer) | Recommended for review | Included in due diligence | 1 week |
| Payment schedule review | Yes (self-review) | Yes for negotiation | Included in due diligence | 2-3 days |
| Completed project track record | Partially | Recommended for verification | Included in due diligence | 1 week |
Risks and mistakes
Buying before the building permit is issued. This is the most common and costly mistake. If the permit is refused or redesigned, your purchase agreement may protect you on paper, but recovering money through Thai courts takes years. Do not pay more than a refundable holding deposit before you have sight of the permit.
Relying on the developer's marketing materials as proof of title. Renders, brochures, and show apartments are not evidence of title or permit. A site visit and Land Office check are the only valid verification.
Ignoring the sinking fund and common-area maintenance fee structure. A sinking fund is a one-time capital reserve paid at transfer, typically 500 to 1,000 THB per square metre (indicative, 2026). If it is set too low, the building will face repair costs it cannot fund. Check the amount and whether it is held in a ring-fenced account managed by the juristic person.
Signing a Thai-language-only contract without a certified translation. You cannot enforce terms you cannot read. Require a bilingual contract or a certified English translation before signing.
Using the developer's recommended lawyer. This is a structural conflict of interest. The developer-recommended lawyer's financial relationship is with the developer. Hire your own lawyer independently.
Ignoring delay penalty clauses. A sale and purchase agreement without a defined penalty for construction delays (typically 0.01% of the purchase price per day of delay is a common market rate, indicative) gives you no financial leverage if the project runs late.
Assuming a large or well-marketed developer is safe. Scale reduces but does not eliminate risk. Due diligence applies equally to large and small developers.
FAQ
What is a chanote and why does it matter for my purchase?
A chanote (also written NS-4) is a full freehold title deed issued by the Thai Land Department. It has GPS-surveyed boundaries and is the highest class of land title in Thailand. A condominium project can only be registered under the Condominium Act if the underlying land has a chanote. If the land has a lesser title, the condominium units cannot be legally transferred to buyers.
Can a foreign buyer own a condominium unit in Thailand outright?
Yes, under the Condominium Act, a foreign national can hold freehold ownership of a condominium unit, provided the total foreign-owned quota in the building does not exceed 49% of the total sellable floor area. Verify the current foreign quota percentage with the juristic person or Land Department before purchasing.
What is an FET letter and when do I need one?
An FET (Foreign Exchange Transaction) letter is a document issued by a Thai commercial bank confirming that foreign currency was remitted into Thailand and converted to Thai baht. You need an FET letter to register ownership of a condominium unit as a foreign national at the Land Office. Without it, transfer is blocked. The bank issues it when you remit funds; keep the original.
What is a juristic person in a Thai condominium?
A juristic person is the legal entity created when a condominium building is registered under the Condominium Act. It is managed by a committee elected by unit owners. The juristic person collects common-area fees, maintains shared facilities, and manages the sinking fund. Before buying a resale unit, ask for the juristic person's most recent financial accounts and meeting minutes to check for outstanding liabilities.
How do I verify that a developer has delivered previous projects?
Request a list of completed projects with full addresses and completion dates from the developer. Then ask a local professional or lawyer to physically confirm at least one or two of those addresses. Cross-check the condominium registration date at the Land Department - a registered condominium has a public registration number. You can also search Thai-language property forums and news archives for buyer feedback on those projects.
What payment schedule terms should I negotiate before signing?
Negotiate that each instalment payment is triggered by a verifiable construction milestone rather than a calendar date. Include a clause requiring the developer to provide photographic evidence and an engineer's sign-off before each milestone payment is due. Add a delay penalty clause - commonly 0.01% of the purchase price per day of delay (indicative market rate). Cap your pre-permit payment at the refundable holding deposit only.
Is it safe to buy from a developer who is funding construction from pre-sales alone?
It is not automatically unsafe, but the risk is higher than for a bank-financed project. Ask for the minimum number of units that must be sold before construction begins. Ask what happens contractually if that threshold is not met. Ensure the sale and purchase agreement includes a full refund clause with a timeline if construction does not start within a defined period, typically 12 to 18 months from signing.
How much should I budget for legal due diligence in Thailand in 2026?
Per 2026 market estimates, independent legal due diligence for a condominium purchase from a foreign buyer typically costs between 15,000 and 40,000 THB, depending on the lawyer's experience and the complexity of the project. This covers company and title checks, sale and purchase agreement review, and Land Office verification. Do not attempt to reduce this cost by skipping the lawyer - the fee is a fraction of any deposit at risk.
What happens if a Thai developer goes bankrupt mid-construction?
If a developer enters bankruptcy, your claim as an unsecured creditor (which is what a buyer typically is without a registered mortgage or lien) ranks behind secured creditors such as banks holding a construction mortgage on the land. Recovery depends on what assets remain and how well your sale and purchase agreement is structured. There is no developer-insolvency protection fund in Thailand as of 2026. Prevention - choosing a financially sound developer and structuring milestone-based payments - is the only meaningful protection.
What are the biggest red flags in a Thai property developer's pitch?
The clearest red flags are: no building permit issued at the time of sale; a payment schedule demanding more than 20% before construction begins; refusal to provide land title documentation; no evidence of any previously completed project; pressure to sign quickly or lose a 'special price'; and a sale and purchase agreement that is available only in Thai with no translation offered. Each of these individually warrants pausing or walking away.
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.