How to Vet a Phuket Developer: 7 Due Diligence Steps Every Buyer Must Take in 2026

Three mid-sized developers on Phuket collapsed in recent years, leaving more than 400 units unfinished and buyers with no deposits to recover. In nearly every case, the buyers had spent almost no time checking the company before wiring their money. This is not a rare story - it is a pattern. According to Thailand's Department of Lands, over 2,000 new development companies register in the country every year, and a significant share fold within the first two years. For a foreign investor who cannot read Thai and has limited familiarity with local property law, vetting a developer is not optional. It is the most important step you will take before signing anything.

The seven-step process below is designed to filter out high-risk operators before a single document is executed.

Quick Answer

• EIA (Environmental Impact Assessment) is mandatory for projects of 80 units or more, or exceeding 4,000 sq m. A missing EIA can halt construction indefinitely.
• Any Thai company's financial statements are available through DBD (Department of Business Development) at datawarehouse.dbd.go.th for 100-500 THB.
• The condominium sales license (or.101) is issued by the Land Department and legally authorises a developer to sell units. Without it, sales are illegal.
• The typical construction timeline for a Phuket condo project is 18 to 30 months. A delay beyond 6 months is a serious warning sign.
• In 2026, market estimates suggest over 60% of new Phuket launches are by companies with less than 5 years of operating history.
• A professional legal due diligence check costs 15,000 to 50,000 THB and can save you millions.

Scenarios and Options

Step 1 - Verify the Legal Entity at DBD

Visit datawarehouse.dbd.go.th or go in person to a Department of Business Development office. You can access the company's registration date, registered capital, names of directors and shareholders, and annual financial filings. Three numbers matter most:

• Registered capital. A credible developer running a meaningful project should carry at least 20 to 50 million THB in registered capital. A company capitalised at 1 million THB selling villas at 30 million THB is a red flag that should stop the conversation immediately.
• Company age. Less than 2 years in operation means elevated risk. The one exception is a subsidiary of an established holding group - but that relationship must be confirmed with documentation, not just claimed in a brochure.
• Profitability track record. Three consecutive years of reported losses raises an obvious question: where is the money to build coming from?

Step 2 - Confirm the Condominium Sales License (or.101)

Under Thailand's Condominium Act B.E. 2522, a developer must register the project and obtain a licence before selling units. Request the licence number and verify it directly at the Phuket Land Office. If this document does not exist, every sale contract signed is legally void.

Step 3 - Review the Construction Permit

The building permit is issued by the local municipality (Tessaban) or the sub-district authority (OrBorTor). It confirms the design has passed architectural review and complies with land zoning rules. On Phuket, where coastal zones enforce strict height limits - typically no more than 23 metres - this document is critical. A project that has begun sales without a valid construction permit is building on legal sand.

Step 4 - Check the EIA Approval

Projects of 80 units or more must obtain an Environmental Impact Assessment clearance from ONEP (Office of Natural Resources and Environmental Policy and Planning). The process takes 6 to 12 months. Developers who launch sales before receiving EIA approval are betting your deposit on a regulatory outcome they do not yet control. Several Phuket projects were suspended between 2023 and 2025 for exactly this reason. Always ask for the ONEP approval reference number and verify it.

Step 5 - Examine the Developer's Track Record

Request a list of completed projects. Then do three things:

• Visit the sites in person. Assess finishing quality, common area upkeep, and the performance of the property management team.
• Speak to residents directly. Ask whether handover was on time, whether quality matched what was promised, and whether there have been recurring issues with leaks, cracking, or utilities.
• Search for litigation. The Thai Courts website at coj.go.th lets you search for cases involving a specific legal entity. Any pattern of contractor disputes, buyer complaints, or unpaid creditor actions is worth serious attention.

Step 6 - Understand the Project's Financing Structure

A credible developer will clearly explain how the project is funded: what proportion comes from the company's own capital, what comes from a bank facility, and what comes from presales. A project that is entirely presale-dependent - meaning it relies on buyers' instalment payments to fund construction - carries considerably higher collapse risk if sales slow.

Major Thai banks including Bangkok Bank, SCB, and Kasikorn conduct their own due diligence before granting project finance. If the developer holds a project loan from one of these institutions, it is an indirect but meaningful signal of credibility. Ask whether a facility exists, and request documentation.

Step 7 - Scrutinise the Contract and Payment Schedule

The standard off-plan payment structure on Phuket is approximately 30% during construction and 70% on handover. If a developer requests 50% or more before completion, that is non-standard and concentrates your financial exposure at the highest-risk phase of the project.

Review the contract for three specific clauses: the penalty for construction delays (the market standard is 0.01% of the purchase price per day), the quality warranty provisions, and the termination and refund conditions. If any of these are absent or vague, instruct your lawyer to negotiate before you sign.

Comparison Table

Main Risks and Mistakes

1. Trusting renders and showrooms over documents. High-quality 3D visualisations and a polished sales suite do not substitute for legal paperwork. Phuket has a long history of 'paper projects' that exist only as presentations and a land plot.

2. Overlooking land zoning rules. Phuket has strict land-use classifications. Purchasing a villa built on agricultural land - particularly a Nor Sor 3 Gor title that has not been converted to a full Chanote - can create serious legal complications that are expensive and slow to resolve.

3. Limiting research to online reviews. Reviews can be fabricated or incentivised. A physical visit to the construction site and to completed projects is not optional. What you observe in person will tell you more than any review platform.

4. Using the developer's lawyer. The developer's legal team represents the developer's interests. Always retain your own independent legal counsel, preferably a firm with a proven track record advising foreign buyers on Phuket transactions.

5. Misunderstanding foreign ownership quotas. Foreigners may hold no more than 49% of the total floor area in a condominium building. If the foreign quota is already filled, you may be offered ownership through a Thai company structure. This introduces additional legal and tax complexity that requires careful independent review before proceeding.

6. Skipping land title verification. Chanote (Nor Sor 4 Jor) is the only land title that provides full ownership rights with GPS-verified boundary coordinates. All other title grades - including Nor Sor 3 and Nor Sor 3 Gor - offer weaker protections and can complicate resale. Confirm the title type before any purchase.

FAQ

Where do I verify a Thai developer's licence? At the Department of Business Development website (dbd.go.th) and at the local Land Office. For condominium projects, request the or.101 licence number and confirm it directly with the Phuket Land Department office.

What does a legal due diligence check cost? Between 15,000 and 50,000 THB, depending on scope. A full review covering land title, company standing, contracts, and EIA status typically runs 30,000 to 50,000 THB. Against the value of a property purchase, this is a negligible cost.

What is the EIA and why does it matter? The Environmental Impact Assessment is a mandatory regulatory clearance from ONEP for large-scale development projects. Without approval, construction can be halted even after presales have launched and payments have been collected.

Can I access a Thai company's financial records? Yes. Every registered Thai company is required to submit annual financial statements to the DBD. These are accessible online or in person for 100 to 500 THB.

Which land title offers the strongest ownership rights? Chanote (Nor Sor 4 Jor) is the gold standard. It is the only title that grants full freehold rights and uses GPS coordinates to define the boundary of the land.

What happens if my developer delays construction? Review your contract for the delay penalty clause - the standard rate is 0.01% of the purchase price per day of delay. If a project falls more than 6 months behind schedule, engage your lawyer immediately to assess your options, which may range from formal negotiation to initiating a legal claim.

Is buying off-plan on Phuket safe? With thorough due diligence in place, yes. Off-plan purchases can lock in a price 15 to 25% below the projected market value at completion. Without proper verification of the developer, it becomes a speculative bet with your capital.

How do I confirm whether a developer has bank financing? Ask directly and request written confirmation. Major Thai banks sometimes publish information about their project lending. A confirmed facility with Bangkok Bank, SCB, or Kasikorn is a positive indicator of developer credibility.

Should I buy from a new developer offering an attractive price? Only if you are comfortable with higher risk and have completed a full due diligence process. New companies frequently offer discounts of 10 to 20%, but the statistical probability of delays, project freezes, or insolvency is meaningfully higher than with established operators.

Vetting a developer on Phuket is not a bureaucratic formality. It is your primary financial safeguard in a market that rewards informed buyers and penalises those who skip the groundwork. The seven steps above typically take 2 to 4 weeks and cost less than 1% of the property value. No single investment decision before a purchase delivers a better return on time.

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