Thai Realty Guide

BlogBuying

Thailand Property Due-Diligence Checklist: What to Verify Before Paying

What should buyers verify in Thailand property due diligence before paying?

Pillar
Buying
Jurisdiction
National (Thailand); Land Office and building-level checks
As of
9 Sept 2026
Reader
Foreign or domestic buyer building a pre-payment verification list
Reading time
~3 min
Featured image for: Thailand Property Due-Diligence Checklist: What to Verify Before Paying
Featured image for: Thailand Property Due-Diligence Checklist: What to Verify Before Paying

Direct answer

Before paying material deposits, verify what right you are buying, who owns it on Department of Lands records, what encumbrances exist, whether the seller can transfer, and—for foreign condominium freehold—whether a current juristic foreign-proportion letter supports transfer under the official portal pathway. Contracts and inspections matter, but they do not replace registration facts.

Key takeaways

  1. 1.Start with title identity and encumbrances at the Land Office.
  2. 2.For foreign condo freehold, obtain a current juristic foreign-proportion letter.
  3. 3.Confirm seller authority and corporate capacity where relevant.
  4. 4.Align payment triggers with written condition precedents.
  5. 5.Needs Thai legal review before transactional reliance.

Important terms

Due diligence — Structured verification before money becomes hard to recover.

Encumbrance — Mortgage, lease, servitude, seizure, or other burden affecting title.

Foreign-proportion letter — Building-level condo capacity evidence for foreign freehold transfer. (thailand-go-condo)

Detailed answer: verify before you pay

Pay for information first: counsel, title searches, and inspections. Marketing packs are not diligence.

Core verification themes

  1. Asset identity — Exact title number, unit number, and area description.
  2. Registered owner — Matches the seller. (dol-home)
  3. Encumbrances — Mortgages, leases, servitudes, court annotations.
  4. Authority — Individual capacity, spousal consents if required, corporate resolutions.
  5. Foreign condo gates — Juristic foreign-proportion letter and eligibility path. (thailand-go-condo)
  6. Contract economics — Refunds, timelines, defect liability, force majeure.
  7. Physical condition — Especially for completed or nearly completed units.

Step-by-step

  1. Freeze the draft contract long enough for counsel to read it.
  2. Order Land Office searches for title and encumbrances.
  3. Collect seller identity and authority documents.
  4. For condos: request the foreign-proportion letter early.
  5. Inspect or commission inspection where appropriate.
  6. Only then release staged payments tied to cleared conditions.

Comparison table

CheckWhy it mattersWeak substitute
Land Office title extractProves registered ownerBrochure copy of title
Encumbrance searchFinds mortgages/liensSeller verbal clear title
Juristic quota letterForeign freehold transfer gateSales gallery percentage chart
Counsel SPA reviewAllocates failure riskSigning at the gallery desk

Hypothetical example

Assumed facts: Buyer pays 10% on a reservation before any Land Office search. A mortgage appears later. Release requires lender cooperation the timeline did not contemplate.

Lesson: Encumbrance checks belong before material funds leave.

Risks

  • Pressure to “secure the last unit” without documents.
  • Dual roles (agent also advising as if counsel).
  • Off-plan projects without clear registration pathway.
  • Ignoring foreign-proportion capacity until transfer week.

Checklist

  • Exact title / unit identifiers recorded
  • Land Office owner and encumbrance search reviewed
  • Seller authority pack complete
  • Foreign-proportion letter (if foreign condo freehold)
  • SPA conditions precedent match payment schedule
  • Inspection plan (completed / near-completed stock)
  • Independent counsel sign-off before large deposit

FAQ

Is an agent checklist enough?

Useful as a start; it is not a substitute for Land Office searches and independent counsel.

Do I need diligence on new builds from famous developers?

Yes. Brand recognition is not title clearance or quota confirmation.

Can I diligence after reservation?

Only if the reservation is lightly committed or refundable. Many are not—read before signing.

Related reading

Claim ledger

Important factual claims planned for this guide, with support status and applicable location.

  • SupportedThailand

    Department of Lands records are the authoritative source for registered ownership and many encumbrances.

    Sources: dol-home

  • SupportedThailand

    Official portal guidance requires attention to foreign-proportion confirmation via the juristic person for condominium transfer.

    Sources: thailand-go-condo

Review flags

  • Lawyer review required before status changes from needs-legal-review.

Sources and methodology

We prefer Thai government law and official procedures over secondary blogs. See also our methodology.

SourcePublisherKindCurrent as ofLimitations
Department of Lands official website
National authority for land and condominium registration procedures
Department of Lands (กรมที่ดิน)
Portal
primary2026-09-09Homepage is an entry point; deep-link the exact Thai instrument used for each claim
Ownership of real estate by foreigners: requesting ownership of a condominium unit
States that under the Condominium Act 1979 foreigners may own within a 49% limit; describes requesting a foreign-proportion letter from the juristic person for Department of Lands transfer
THAILAND.GO.TH (Government Public Relations / official portal)
Created 2023-01-16; Updated 2023-07-10 (portal metadata)
primary2026-09-09English portal summary; wording refers to 49% of total number of units—confirm against controlling Thai Condominium Act text whether measurement is units or saleable area; cite REIC as source contact on page

Reviewed as of not yet professionally reviewed. Research as-of date: 2026-09-09.

Related articles

Continue with neighboring topics in this hub.