Thailand real estate terms: D
Letter D covers due diligence, Department of Lands, and deposit. These terms define the sequence foreign buyers should follow: investigate first, register at DOL, and pay commitment money only when SPA protects you.
See our due diligence guide and browse the property hub.
Title category determines transfer and upgrade risk.
Lawyer verifies deed before deposit on land or villa.
Registered price used in fee and tax calculations.
Deed categories and diligence vocabulary on chanote.
Browse glossary by letter
Terms starting with D
Due diligence
Summary: Lawyer-led review of title, encumbrances, quotas, permits, and seller identity before signing a sale contract.
In Thai property law context: Due diligence is the control phase that separates professional purchases from brochure-driven mistakes. Scope includes title search at Land Office, foreign quota verification with juristic person, encumbrance and litigation checks, building permit review for villas, FET path confirmation for condos, and SPA clause analysis. Agents provide market access. Due diligence answers whether you should buy at all.
Land Office and market practice: Instruct independent counsel before paying deposit. Diligence reports should be written and dated, not verbal assurances. Typical Bangkok condo resale diligence takes one to two weeks depending on juristic person response time. Off-plan and villa diligence takes longer when EIA, lease chain, and developer financial review are required.
Where you see this term: Due diligence appears in lawyer engagement letters, memo headings, SPA conditions precedent, and bank remittance instructions conditioned on clean title report.
Common mistakes:
- Paying deposit before diligence completes
- Using developer diligence report as substitute for independent review
- Limiting review to price negotiation without title search
Department of Lands (DOL)
Summary: National registry registering transfers, leases, usufructs, and mortgages for enforceable property rights.
In Thai property law context: The Department of Lands is the authoritative registry for property rights in Thailand. Freehold condo unit transfer, registered lease up to 30 years, superficies, usufruct, and mortgage all require DOL registration to bind third parties. Informal agreements without registration are weak in dispute. Foreign buyers interact with provincial Land Office branches where the property sits, not a single Bangkok counter for all Thailand.
Land Office and market practice: Transfer day attendance at DOL is where your lawyer verifies fee payment, document stack, and new title deed name spelling. Plan half-day minimum for Bangkok counters; resort provinces may differ. DOL appraisal data feeds transfer tax calculations tied to letter A assessed value.
Where you see this term: DOL references appear on title deeds, transfer receipts, registered lease stamps, and official links in lawyer correspondence.
Common mistakes:
- Treating notarised private agreement as equivalent to DOL registration
- Assuming all Land Office branches process condo foreign transfer the same day without appointment
- Skipping final deed review at counter before leaving office
Deposit (earnest money)
Summary: Typically 10 to 15 percent of price paid after basic title check, with forfeiture rules defined in SPA.
In Thai property law context: Deposit shows commitment but creates leverage risk if diligence later fails. Thai SPAs vary on forfeiture when buyer exits for title defect versus when seller defaults. There is no standard national deposit scheme like some Western escrow systems. Deposit timing should follow satisfactory diligence, not agent pressure to hit monthly sales target.
Land Office and market practice: Lawyers negotiate deposit hold structure, refund triggers, and completion deadlines. Some transactions use lawyer client account holds instead of direct seller transfer. Never wire deposit to personal seller account without SPA and identity verification. Off-plan deposits need milestone-linked refund clauses tied to completion dates and permit status.
Where you see this term: Deposit appears in SPA payment schedule, reservation forms, agent receipts, and conditions precedent in lawyer-reviewed contracts.
Common mistakes:
- Wire transfer before seller identity and title verified
- Accepting non-refundable deposit label without lawyer review
- Paying cash deposit without receipt trail
Letter D and lawyer engagement
Engage property counsel when letter D terms enter the conversation: due diligence scope, which Land Office branch registers your asset, and deposit wording. Visa consultants and agents are not substitutes for DOL registration advice. Confirm the professional reviewing deposit clauses is a licensed attorney.
Correct sequence for foreign buyers
First instruct due diligence. Second confirm DOL registration path for your asset type. Third pay deposit only under SPA with refund conditions linked to diligence outcomes. Agents often reverse steps two and three. Letter D vocabulary exists to keep the sequence straight.
DOL provincial branches
Department of Lands operates through provincial offices. Bangkok condo transfers may use a different branch than Phuket land lease registration. Your lawyer confirms appointment requirements and document language. Letter D DOL term is practical logistics, not abstract registry theory.
After diligence clears, coordinate letter F FET planning if you buy condo freehold.
How to use letter D terms with your lawyer
Commission due diligence first
Letter D due diligence vocabulary maps to title search, encumbrance review, and lawyer memo sections before any deposit.
Understand DOL registry role
Department of Lands registers title and lease rights. Unregistered agreements do not transfer ownership.
Negotiate deposit with refund clauses
Earnest money should be subject to satisfactory due diligence. Read deposit terms in Thai and English before signing.
Cross-read letter A tax terms
Assessed value from letter A affects transfer tax estimates your lawyer prepares after diligence completes.
Align with long-stay lifestyle plans
Property diligence does not replace visa status. Coordinate immigration and banking through our Thailand lifestyle guide.
Due diligence checklist: property due diligence guide. Long-stay planning: Thailand lifestyle guide.
Deposit rule: If anyone asks for deposit before providing seller title deed copy and basic quota or lease summary, pause and instruct a lawyer. That pressure pattern appears in most deposit loss disputes we see from expat clients.
Common glossary mistakes
Buyers misapply letter D deed types and due diligence terminology when rushing reservation payments. Use this page to follow your lawyer memo, not to skip independent counsel.
- Reading only dictionary definition without context section on letter D deed types and due diligence terminology
- Assuming US or UK term meaning matches Thai Land Office usage on transfer forms
- Paying deposit before verifying terms from this letter page with property lawyer
- Skipping linked letter pages when SPA references multiple vocabulary items
- Treating glossary as substitute for juristic person letter and title search
How to use this glossary letter
Named steps help you apply vocabulary during due diligence, not just memorise definitions.
Read term in context
Use summary plus Land Office practice sections, not dictionary definition alone.
Cross-check with lawyer memo
Match vocabulary to your SPA and due diligence report.
Verify quota and tax base
Letter terms often decide whether transfer succeeds at Land Office.
Browse linked letters
Continue to adjacent glossary pages referenced in your contract.
Book property coordination
Align visa, banking, and transfer timing with TVC if relocating.
Extended planning notes
Rules, fees, and embassy practices change. Verify against official sources within two weeks of travel or submission. TVC guidance reflects Bangkok team experience as of June 2026, not a substitute for legal advice on your specific facts.
Long-stay holders should cross-link this topic with Thailand lifestyle guide for visa category fit, TM30, 90-day reporting, and cost-of-living context.
- Confirm official embassy or immigration source before paying non-refundable fees
- Photograph passport stamps and set calendar reminders before expiry
- Keep digital copies of refusal letters, extension approvals, and financial proof
- Plan re-entry permits before leaving on single-entry extensions
- Ask TVC for case-specific checklist rather than relying on forum advice
Planning milestones
Use this timeline table alongside the named workflow steps above. Dates shift by embassy workload and your document quality.
| Phase | Action |
|---|---|
| Week 1 | Confirm eligibility, assigned post, and document checklist on official portals. |
| Week 2 | Complete affidavits, translations, and legalisation in the order the checklist requires. |
| Week 3 | Submit application with cross-checked names, dates, and financial proof. |
| After approval | File TDAC, register address, and set 90-day reporting reminders before long-stay life begins. |
Core document checklist
Most Thailand visa, property, and consultation cases ask for variations of these documents. Your TVC checklist may add category-specific items.
| Document | Note |
|---|---|
| Passport biodata page | Must match every form field including middle names and spacing. |
| Passport photos | Recent, white background, per embassy specifications. |
| Financial proof | Bank statements or pension letters meeting category thresholds. |
| Supporting affidavits | Embassy or notarised documents when required for your nationality pair. |
Compliance reminders for long-stay holders
Tourism advice forums often skip post-arrival duties. These reminders apply across most categories. Privilege and some LTR tiers simplify reporting but not TDAC or overstay rules.
- Complete TDAC before every arrival at tdac.immigration.go.th
- Ensure TM30 address registration within 24 hours of check-in
- File 90-day reports on schedule for long-stay categories
- Match daily activities to your visa stamp category
For TM30 detail see TM30 guide. For 90-day reporting see 90day.in.th.
Stay current on rule changes
Thailand immigration, embassy fees, and long-stay programme rules update throughout the year. Treat this guide as orientation verified as of June 2026, not a permanent guarantee for your travel or filing date.
Bookmark official references below and re-check within two weeks of departure, extension, or embassy interview. TVC live chat can confirm whether a recent announcement affects your category.
Common planning mistakes
These errors appear repeatedly in Bangkok consultations regardless of nationality or visa type.
- Relying on outdated forum posts instead of official embassy or immigration sources
- Booking non-refundable flights before visa approval or entry permission is confirmed
- Entering on tourism stamps when relocating for work, retirement, or family reunification
- Ignoring TM30, 90-day reporting, or re-entry permit rules after the first month
- Using generic document lists without category-specific financial or civil document proof
When to escalate to TVC
Self-filing works for straightforward tourism. The situations below benefit from specialist review before you pay fees or miss a deadline.
| Signal | Suggested action |
|---|---|
| Prior visa refusal | Book structured review before re-filing or re-interview |
| Overstay or blacklist history | Do not self-file until immigration strategy is mapped |
| Employer or embassy deadline within 14 days | Flag urgency in first TVC message with dates |
| Multi-country routing | Request specialist triage for conflicting rules |
| Property plus visa overlap | Coordinate lawyer, bank FET, and immigration timelines together |
Frequently asked questions
Q:How long does due diligence take?
Simple Bangkok condo resale often takes one to two weeks. Villa, off-plan, and corporate seller deals take longer. Start before you commit deposit.
Q:Is DOL the same as Land Office?
Yes. Department of Lands operates provincial Land Office branches where transfers register.
Q:Is deposit refundable if title fails?
Depends on SPA clauses. Lawyer-drafted conditions precedent should refund deposit when diligence finds defect outside agreed tolerance.
Q:Where do I see these terms?
Lawyer memos, SPA payment schedules, Land Office receipts, and diligence checklists.
Q:Do these definitions replace legal advice?
No. Diligence scope and deposit structure must match your specific asset and seller.
Q:Due diligence checklist link?
See our due diligence guide for ten review points before signing.
Q:Can I skip diligence on brand new condo?
No. New units still need quota verification, developer review, and SPA analysis before large payments.
Q:More glossary pages?
See the glossary hub for the full A to Z index.