Property due diligence in Thailand
Thai property due diligence is your insurance before the deposit. Title defects, foreign quota miscounts, and unregistered encumbrances surface at the Department of Lands, or never, if you skip the search.
At Thai Visa Centre in Bangkok, we help expats coordinate lawyer referrals and banking before transfer day. This guide explains what due diligence covers for June 2026. Start with our due diligence checklist and property hub.
Official Land Office search confirming registered owner.
Lawyer report covering title, contracts, and developer status.
Typical range on complex transactions relative to property value.
Department of Lands holds official title and encumbrance records.
Why due diligence matters
Thailand has no centralised MLS with guaranteed title. Sellers, agents, and developers may not disclose mortgages, litigation, or quota problems without a formal search.
| Hidden risk | What due diligence reveals |
|---|---|
| Outstanding mortgages | Registered encumbrances that must be discharged before transfer |
| Title grade issues | Chanote vs lesser title types affecting finance and resale |
| Foreign quota full | Juristic certificate showing whether foreign registration is possible |
| Building violations | Permit and EIA status for off-plan and villa projects |
Core due diligence steps
Licensed property lawyers order official searches at the Department of Lands, review contracts, and flag issues before you sign a binding sale agreement.
| Step | Purpose |
|---|---|
| Title deed search | Confirm seller matches registered owner on chanote or equivalent deed |
| Encumbrance check | Identify mortgages, leases, usufructs, and servitudes on title |
| Foreign quota verification | Juristic person certificate for condominium foreign registration |
| Developer licence review | Condominium registration, completion status, and litigation history |
Due diligence timeline
Start due diligence before signing a binding SPA or paying more than a refundable reservation fee. Full reports typically complete within one to two weeks.
Engage independent property lawyer
Hire counsel who represents you alone, not the developer or seller agent on the same deal.
Order official title search
Lawyer requests Land Office records confirming owner, deed type, and registered encumbrances.
Verify foreign quota or lease term
For condos, obtain juristic foreign quota certificate. For villas, review registered lease duration and renewals.
Review sale and purchase agreement
Compare SPA clauses against marketing materials. Penalty, refund, and completion terms matter most.
Confirm tax and fee allocation
Identify who pays transfer fee, withholding tax, and specific business tax per Revenue Department rules.
Clear to sign or walk away
Lawyer issues written report. Only pay binding deposit after critical items pass review.
Who performs due diligence
DIY title checks at the Land Office are possible but miss legal interpretation. Licensed Thai property lawyers order official searches, review contracts in Thai and English, and attend transfer.
- Property lawyers: full due diligence, contract review, transfer attendance
- Buyers alone: can request Land Office search but may misread deed categories
- Agents: facilitate viewings but do not provide independent legal verification
- Developers: provide marketing materials, not neutral title assurance
- Notaries from home country: foreign notarisation does not replace Thai title search
- Accountants: tax planning only, not encumbrance or quota verification
Extended checklist
Our ten-point due diligence checklist lists ten review points including litigation, probate, and servitude checks beyond basic title search.
Common mistakes foreigners make
Skipping due diligence is the most expensive mistake in Thai property. Deposits become hard to recover once title defects or quota failures appear after signing.
- Signing sale agreement before title search completes and lawyer report is delivered.
- Trusting agent verbal assurances that foreign quota is available without juristic certificate.
- Assuming branded developer projects do not need independent legal review.
- Accepting Nor Sor 3 Gor title without understanding resale and finance limitations.
- Using developer in-house lawyer as sole counsel on the same transaction.
Frequently asked questions
General answers on property due diligence in Thailand. Hire independent counsel for transaction-specific review.
Q:Can I skip due diligence on a new condo from a big developer?
A:No. Even branded projects fail quota maths or delay juristic registration. Verify foreign quota and completion before large deposits.
Q:What is a red-flag title?
A:Nor Sor 3 Gor or Sor Kor 1 without clear upgrade path to chanote. Harder to finance and resell. See our title deeds guide.
Q:When should due diligence start?
A:Before signing a binding SPA or paying more than a refundable reservation fee.
Q:How much does due diligence cost?
A:Lawyer due diligence commonly runs 15,000 to 50,000 THB depending on complexity. Request a written quote upfront.
Q:Can I do due diligence myself at the Land Office?
A:You can request searches but may misinterpret deed categories and encumbrance legal effect without counsel.
Q:What encumbrances block transfer?
A:Registered mortgages, pending litigation orders, and unresolved probate typically block clean transfer until discharged.
Q:Does due diligence cover hotel law for rentals?
A:Full review should flag short-term rental restrictions in bylaws and hotel registration requirements where relevant.
Q:Which authority holds official title records?
A:The Department of Lands maintains registered title and encumbrance records nationwide.