How to Evaluate an Off-Plan Condominium Project in Thailand

Important terms

Off-plan means buying before the unit and project are completed and ready for transfer.

Project company is the entity developing or selling the project. It may be legally separate from the public brand.

Milestone payment is due when an objectively defined stage is achieved, if the contract is drafted that way.

Condominium registration is the legal process required before individual condominium unit titles can be transferred.

Snagging is a detailed pre-handover inspection and documentation of defects or incomplete work.

Detailed answer

An off-plan buyer takes developer, approval, finance, construction, specification, legal-registration, and market risk at the same time. A discounted launch price does not compensate for those risks unless the discount itself is supported by reliable comparable evidence and the contract provides workable protection.

Identify the exact seller in the reservation and sale agreement. Check current corporate records through the Department of Business Development. (dbd) Confirm who owns the project land and have the title and registered encumbrances independently checked through the Department of Lands. (dol) If a lender has security, understand how the relevant unit will be released for transfer.

Ask for an approval register and copies of the documents applicable to the project. Match approved plans to marketing plans, unit identifiers, stated areas, parking and common facilities. Record which items are contractual and which are illustrations.

The contract should state the unit, price, payment schedule, specifications, permissible tolerances, substitution controls, completion trigger, long-stop date, extensions, buyer and seller default, interest or other remedies, refund process, assignment, foreign-quota outcome, transfer documents, taxes and fees, snagging, warranties, and dispute process. Avoid relying on oral promises.

Foreign buyers also need a completion pathway. Official guidance identifies conditions for foreign condominium ownership. (thai-gov-condo) The contract should address what happens if foreign freehold transfer cannot lawfully occur, distinguishing a buyer-caused documentation failure from project-level quota or registration issues.

Track construction through dated evidence and qualified inspections where access permits. Before final payment, inspect the unit, common areas, building systems, title and registration documents, quota evidence, juristic arrangements, and mortgage release. Define which defects block completion and how retained or outstanding work will be handled.

Step-by-step

1. Set the maximum deposit and construction exposure you can accept.
2. Identify the legal seller, parent, landowner, contractor, and lender.
3. Verify corporate records, title, encumbrances, and legal access.
4. Review the approval register and approved plans.
5. Analyse project funding and the developer's completion record.
6. Convert marketing promises into signed specifications and drawings.
7. Negotiate objective milestones, a long-stop date, and remedies.
8. Confirm foreign ownership and remittance documentation requirements.
9. Monitor dated progress before each major payment.
10. Complete legal, technical, quota, and mortgage-release checks before transfer.

Comparison table

Hypothetical example

Hypothetical. A buyer reserves a unit scheduled for future completion. Independent review finds that the contract allows broad material substitutions and makes most of the price payable by calendar date rather than verified progress. The buyer negotiates an attached specification, measurable milestones, notice and cure mechanics, a long-stop date, and a refund remedy. Whether the seller accepts becomes part of the risk decision.

Risks

• Seller and brand are different entities
• Project land is mortgaged without clear unit-release mechanics
• Missing, changed, or conditional approvals
• Payments run ahead of construction value
• Area, layout, view, or materials differ from marketing
• Delay clauses lack an effective final remedy
• Foreign quota or registration prevents intended transfer
• Defects remain after final payment
• Projected resale or rental demand weakens

Checklist

• Legal seller and signing authority verified
• Land title and encumbrances checked
• Approval register and approved plans reviewed
• Project funding and completion history assessed
• Unit plan and specification attached to contract
• Payment milestones objectively defined
• Delay, default, refund, and long-stop clauses reviewed
• Foreign freehold pathway documented
• Progress monitoring arranged
• Pre-transfer legal and snagging checks scheduled

FAQ

Is an off-plan reservation refundable?

It depends on the signed wording and applicable facts. Do not assume a sales statement creates a refund right; review the reservation before payment.

Does a construction permit guarantee completion?

No. Approval is necessary evidence where applicable, but funding, contractor performance, design compliance, registration, and developer conduct remain relevant.

Should payments follow construction progress?

Objective milestones can reduce ambiguity, but their adequacy and enforceability require contract-specific advice.

Can I sell the contract before completion?

Only if the agreement and applicable requirements permit assignment, and a buyer exists. Check consent, fees, documentation, taxes, and marketability; do not assume an exit.

Related reading

• How to Research a Thai Property Developer Before Buying
• New-Build Property Inspections in Thailand: Defects to Check Before Transfer
• What to Check Before Signing a Property Reservation Agreement in Thailand
• Thai Property Sale-and-Purchase Agreements: Clauses Buyers Should Examine