How to Verify a Thai Developer Before Buying: 7 Checks

Before you transfer any money to a Thai developer, you need to verify seven things: the company's legal registration, its completed-project track record, the land title class behind the project, the building permit and EIA approval status, how construction is financed, whether the developer has active litigation, and what the payment schedule looks like. Each of these checks can stop a costly mistake. Together, they form a practical playbook you can run from abroad - some steps online, some requiring a licensed Thai lawyer on the ground.

This guide is written for buyers who have no local connections and are researching remotely. It tells you exactly where to look, what a red flag looks like, and what it costs you financially if you ignore each one.

Quick answer

• Verify company registration at the Department of Business Development (DBD) website (dbd.go.th) - free, in English, takes five minutes
• A chanote title (NS 4 Nor) is the only land document that gives full ownership rights; anything lower is a red flag for a condominium or villa project
• Building permit and EIA approval must exist before a developer legally sells off-plan units; selling without them is illegal under the Building Control Act
• Construction financing by a Thai bank (a project loan secured against the land) signals lower pre-sales-collapse risk than a project funded only by buyer deposits
• Payment schedules tied to construction milestones (foundation, structure, handover) are your real protection - not escrow, which does not exist for foreign buyers in Thailand
• Litigation search at the Thai Courts (coj.go.th) costs nothing and takes under ten minutes
• Red-flag threshold on payment schedules: more than 30% of the purchase price due before the building permit is issued is a serious warning sign

Options and scenarios

How do I check a Thai developer's company registration?

Every legitimate Thai developer is a registered juristic person - meaning a company with a Thai company registration number (called a 'Borisat' or limited company). Go to the Department of Business Development website (dbd.go.th). Enter the company name in Thai or English. You will see the registration date, paid-up capital, registered directors, and whether the company is still active.

What you are looking for: paid-up capital above 10 million THB for a mid-scale project, active status, and a registration date that is not suspiciously recent relative to the project launch. A company registered six months before it launched a 500-unit condo is worth a second look. Low paid-up capital (under 1 million THB) combined with a large project is a structural mismatch.

What this check costs if ignored: if the developer dissolves mid-construction, you have a claim against a shell with no assets.

How do I check a Thai developer's completed-project track record?

Ask for a list of completed projects by name and address. Then do three things:

1. Search the project name in Thai and English on the Land Department portal (dol.go.th) or ask your lawyer to run a title search confirming that units were actually transferred to buyers.
2. Visit or hire a local agent to visit the completed project. A finished building is a verifiable fact. Renders are not.
3. Check delivery dates in old sales brochures versus actual handover dates. Ask the developer directly for this data. If they cannot supply it, treat that as a red flag.

Red-flag threshold: any project delivered more than 24 months late without a documented cause (major natural disaster, pandemic-era force majeure with dates) suggests poor financial or project management. More than one late project in the track record moves the risk category from 'caution' to 'avoid unless you can verify construction financing independently'.

What this check costs if ignored: buyers who skipped track-record checks in past Thai market cycles have waited four to seven years past the promised handover date, or received units in a partially occupied building with no functioning juristic person (the legal body that manages a condominium's common areas and fees).

How do I verify the land title behind a Thai property project?

The land title class determines what rights you are buying above or below. Thailand has several categories:

• Chanote (NS 4 Nor): full ownership, GPS-surveyed boundaries, freely transferable. This is the only acceptable title class for a condominium or villa you intend to own.
• Nor Sor 3 Gor: can be upgraded to chanote, transferable, but boundaries may be disputed.
• Nor Sor 3: requires a 30-day public notice period before transfer; boundaries less precise.
• Sor Kor 1 or Por Bor Tor 5: agricultural possession documents, not ownership. No legitimate developer should be selling off-plan units on land held under these categories.

You verify the title at the local Land Department office. Your lawyer can request a certified land title extract (called a 'copy of the title deed') for a small administrative fee. Do this before signing any reservation agreement.

For a condominium project specifically, also verify that the developer has obtained the Condominium Registration under the Condominium Act - this is separate from building permits and confirms the project is legally structured to allow foreign freehold ownership of up to 49% of the saleable area.

What this check costs if ignored: buyers who purchased on Sor Kor 1 land have lost their investment entirely when the land reverted to agricultural use or was reclaimed.

How do I check building permits and EIA approval status?

Under Thai law (the Building Control Act and the Environmental Enhancement and Conservation Act), a developer must hold:

1. An Environmental Impact Assessment (EIA) approval for projects above specific size thresholds (in most provinces, condominiums above 80 units or 4,000 square metres require EIA approval before sales can legally begin).
2. A construction permit (or Orasathapatayakam) issued by the relevant local authority (municipality or provincial office) before groundbreaking.

Ask the developer for both documents. Legitimate developers provide them on request. If a developer is selling floor plans with no permit number to show you, the project may be in a legally grey pre-permit phase. That means your money is at risk if the permit is refused - a realistic outcome in areas with environmental sensitivity (beachfront Phuket zones, Koh Samui hillsides, parts of Chiang Mai).

Red-flag threshold: a developer asking for more than a symbolic reservation deposit (over 1% to 2% of the purchase price) before a building permit exists is using your money to finance the permit application itself.

What this check costs if ignored: permit refusals have stranded buyer deposits in projects that were marketed aggressively before any permit was issued. Recovery through Thai courts is possible but takes years and is not guaranteed.

How do I find out how a Thai developer finances construction?

There are two main financing structures for Thai residential projects:

Option 1: Bank project loan. A Thai commercial bank has assessed the developer, the land title, and the project feasibility, and has extended a construction credit facility secured against the land. This means an independent institution has done due diligence you benefit from indirectly. Ask which bank holds the project loan. A legitimate developer will name the bank. You can ask your lawyer to confirm the loan exists via a title encumbrance search (the mortgage against the land will appear on the title deed).

Option 2: Buyer deposit financing. The developer is building primarily with the money collected from early buyers. This is legal in Thailand, but it concentrates risk on you. If pre-sales stall, construction may stop. This model is common among smaller developers and is not automatically disqualifying - but it raises the bar for all other checks.

Red-flag threshold: a developer with no disclosed bank financing, no track record of completed projects, and a payment schedule that demands 50% or more of the price before the structural frame is complete is a combination that has preceded a significant number of Thai project failures.

What this check costs if ignored: if construction halts and the developer becomes insolvent, you are an unsecured creditor under Thai law. Recovery on partial payments is typically 10-30 cents on the baht in liquidation scenarios, based on reported Thai court outcomes.

How do I search for litigation against a Thai developer?

The Thai Court system's public case search (coj.go.th) allows you to search by company name. The site is primarily in Thai, so either run a search using the Thai-script company name (your lawyer can supply this) or ask a Thai-speaking contact to do it for you.

Look for: civil cases filed by buyers (breach of contract, non-delivery), labour disputes (indicator of payroll problems), and tax cases filed by the Revenue Department. A single buyer dispute in a portfolio of 500 delivered units is ordinary. Multiple active cases across different projects is a structural pattern.

Also search the Consumer Protection Board (ocpb.go.th) complaints database and the Real Estate Information Center (reic.or.th) news archive for the developer's name.

What this check costs if ignored: a developer already defending 15 buyer lawsuits lacks the management bandwidth and financial stability to complete your project on schedule.

What does a safe payment schedule look like?

In a well-structured Thai off-plan purchase, the payment schedule mirrors construction progress. A reasonable structure for a condominium (indicative figures, 2026 market norms):

• Reservation deposit: 1-2% at signing of reservation agreement (refundable if due diligence fails, in a properly drafted contract)
• Contract signing: 10-15% within 30 days of reservation
• Foundation / piling complete: 10-15%
• Structural frame complete: 10-15%
• Building sealed (roof on, windows in): 10-15%
• Handover / transfer: remaining balance (30-40%)

If a developer wants 40-50% at contract signing with no permits in place, that schedule is designed to transfer maximum risk to you at the earliest possible moment.

Red-flag threshold: any schedule that collects more than 30% of the total price before the structural frame is independently verifiable requires a documented explanation from the developer and independent legal review.

Comparison table

Check	Can you do it remotely?	Cost to you	Red-flag threshold	Cost if ignored
Company registration (DBD)	Yes, free online	None	Paid-up capital under 1M THB for large project	Claims against a shell company
Track record (completed projects)	Partially (online search + photos)	None to low	Any project 24+ months late without documented cause	Multi-year wait or total loss
Land title class	No - requires lawyer on the ground	5,000-15,000 THB lawyer fee	Anything below chanote (NS 4 Nor)	Investment lost if title is invalid
Building permit and EIA	Partially (ask developer, lawyer confirms)	Included in legal review	Selling units before permit issued	Deposit stranded if permit refused
Construction financing	Partially (ask developer, lawyer confirms mortgage)	Included in legal review	No bank loan + buyer-deposit-only funding	10-30% recovery in insolvency
Litigation search (coj.go.th)	Yes, free (Thai script needed)	None	Multiple active buyer lawsuits	Buying into an already-failing project
Payment schedule structure	Yes (read the contract)	None	Over 30% before frame is complete	Maximum financial exposure with minimum build progress

Risks and mistakes

Signing a reservation agreement without reading the refund clause

Reservation agreements in Thailand vary widely. Some are fully refundable if due diligence reveals a problem; others treat the deposit as forfeited the moment you sign. Always have a lawyer review the reservation agreement before you pay anything. A standard reservation deposit is 1-2% of the purchase price. Losing it is painful but recoverable. Losing a 30% first payment because you did not read the refund clause is not.

Assuming a show unit equals a solvent developer

A polished show unit, a slick sales presentation, and a prime location tell you nothing about the developer's financial position. Show units are a marketing cost. What matters is the bank loan, the permit, and the completed buildings.

Paying for units in a project without a condominium registration

Under the Condominium Act, a project must be registered as a condominium before it can legally issue freehold title deeds (chanote) to individual units. Some projects are sold as condominiums but are not yet registered. Ask for the condominium registration number. Without it, you may own a unit but be unable to obtain a title deed in your name at handover.

Relying on verbal promises from the sales team

Salesroom commitments about rental yields, furniture packages, pool completion, or school proximity are not enforceable unless they appear in the signed sale and purchase agreement (SPA). Thailand has no blanket rental guarantee regulation that protects buyers if a developer-managed rental program collapses. Any promise not in the SPA is legally invisible.

Not appointing an independent lawyer

The developer's in-house legal team works for the developer. A lawyer recommended by the sales agent may have a referral relationship with the developer. Appoint a lawyer you find independently, ideally one registered with the Lawyers Council of Thailand with documented experience in property transactions for foreign buyers. Budget 15,000 to 50,000 THB for full legal due diligence on an off-plan purchase (indicative 2026 figures).

Misunderstanding foreign ownership quotas

For condominiums, foreigners can hold freehold title to up to 49% of the total saleable area in any registered project. If the developer has already sold or reserved more than 49% to foreign buyers, you cannot obtain freehold title and may be offered a leasehold structure instead. Always confirm the current foreign quota availability in writing before signing.

FAQ

What is the single most important document to check before buying off-plan in Thailand?

The building permit, combined with the chanote title deed for the land. The building permit confirms construction is legal. The chanote confirms the developer actually owns the land with full, unencumbered rights. Without both, do not proceed.

Can I do the full developer vetting process from abroad without visiting Thailand?

You can complete roughly half the process remotely: company registration check (DBD website), basic litigation search (coj.go.th with Thai-script support), review of the developer's project list, and reading draft contracts. The other half requires a licensed Thai lawyer on the ground: title deed verification at the Land Department, building permit confirmation with the local authority, and mortgage encumbrance search. Budget for remote legal instruction - most established Thai property lawyers accept instructions by email and video call.

What does 'chanote' mean and why does it matter?

A chanote (formally NS 4 Nor) is Thailand's highest-grade land title document. It confirms ownership with GPS-surveyed boundaries and is freely transferable at the Land Department. It is the only title class that gives you full legal ownership rights. Lower-class documents carry boundary disputes, transfer restrictions, or may not represent ownership at all.

Is there a way to protect my payments if the developer fails mid-construction?

There is no escrow system for foreign property buyers in Thailand in the traditional sense. Your real protection is a payment schedule tied strictly to verifiable construction milestones, combined with contractual delay penalties written into the sale and purchase agreement. A penalty clause of 0.01% of the purchase price per day of delay is a common starting point in negotiations; push for 0.02% if the developer's track record is thin. Also verify that the developer holds a bank project loan - if the bank is the mortgagee on the title, it has an independent interest in the project being completed.

What is a juristic person in the context of Thai condominiums?

A juristic person is the legal management body formed by unit owners after a condominium is registered. It collects common area fees, manages the building, and holds the condominium's reserve fund (the sinking fund - a one-time contribution paid at handover, typically 500 to 700 THB per square metre as of 2026, indicative figures). If the developer has not properly registered the condominium, no juristic person can be formed and the building has no legal management structure.

What is a sinking fund and do I have to pay it?

A sinking fund is a one-time capital reserve payment made by each buyer at the time of title transfer. It funds major future repairs (roof replacement, elevator overhaul, facade work) and is held by the juristic person. Payment is mandatory. The rate is set in the condominium's regulations, typically 500 to 700 THB per square metre (indicative, 2026). It is separate from monthly common area fees (typically 40 to 80 THB per square metre per month, indicative).

How do I know if a developer's EIA approval is real?

Ask the developer for the EIA approval reference number and the issuing authority. Your lawyer can then confirm this with the Office of Natural Resources and Environmental Policy and Planning (ONEP) or the relevant provincial authority. EIA approvals are issued as official documents with reference numbers and dates. A developer who claims EIA approval but cannot produce a reference number has not received it.

What happens legally if a Thai developer goes insolvent mid-project?

If a developer is declared insolvent under the Thai Bankruptcy Act, the project assets (land, partially built structure) are controlled by a court-appointed receiver. As a buyer who has paid instalments, you are an unsecured creditor unless your sale and purchase agreement contains a specific security clause. Unsecured creditors are paid after secured creditors (typically the bank holding the project mortgage). Recovery rates in Thai developer insolvencies have historically been low - in the range of 10 to 40 cents per baht paid, based on reported case outcomes. This is why the payment schedule structure is your primary financial safeguard.

What should I look for in the sale and purchase agreement specifically?

Four things: first, construction milestones tied to each payment tranche with clear, measurable descriptions (not just 'phase one complete'). Second, a delay penalty clause with a specific daily rate. Third, a buyer's right to cancel and receive a full refund if the project is not completed within a specified period (typically 12 to 24 months beyond the contracted handover date). Fourth, the foreign quota confirmation in writing - the SPA should state that the unit is being sold as foreign freehold and that the quota was available at contract date.

Are developer-offered rental guarantee programs safe to rely on?

Treat rental guarantees with caution. A developer guarantee of 5-7% annual rental return for three to five years is funded from either real rental income or from the developer's own capital. If rental occupancy is lower than projected, the developer may fund the guarantee from new buyer deposits - a structure that is not sustainable. Verify the guarantee terms in the SPA, ask for the developer's audited accounts to confirm financial capacity, and do not make a purchase decision based primarily on the guarantee figure.

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