A Thai land buyer should not assume that fences, walls, landscaping or online maps match the registered parcel. Review the current title and cadastral plan, locate recognized survey markers, compare dimensions and access with the occupied land, investigate encroachments, and use the responsible Land Office process when boundaries are missing, disputed or material to development.
What should be compared with the title plan?
- parcel number and official area;
- shape and dimensions shown in the record;
- road frontage and access points;
- recognized boundary markers;
- fences, walls and neighboring occupation;
- buildings, drains and utilities near the edges.
Why are fences and walls not enough?
They may have been placed for convenience, moved over time, built by a neighbor or constructed without a current survey. Treat them as physical evidence to investigate, not conclusive legal boundaries.
When is a formal check especially important?
- the parcel is irregular or difficult to identify;
- markers are missing or damaged;
- the occupied area differs from the title plan;
- a building or wall sits near the line;
- road access depends on a narrow strip;
- neighbors disagree about the boundary;
- development setbacks depend on exact dimensions.
How should access be verified?
Confirm whether the property connects to a public road or relies on a registered servitude, private road or other arrangement. Inspect the actual route and compare it with the official record and any registered rights.
What if a marker is missing or disputed?
- Do not move or replace markers privately.
- Photograph the site and record the apparent issue.
- Review the current Land Office record.
- Ask the responsible Land Office about the authorized verification process.
- Notify neighboring owners where the procedure requires participation.
- Keep the resulting records with the purchase file.
What should be checked before development?
- planning and building requirements;
- setbacks and road width;
- drainage and water routes;
- easements and utility corridors;
- neighboring structures near the line;
- topography and retaining walls.
What does a boundary review not replace?
- title and encumbrance review;
- building-permit and use checks;
- soil, flood and structural investigation;
- foreign-ownership legal review;
- contract and seller-authority checks.
Which records should the buyer retain?
- title and cadastral plan copies;
- Land Office search or survey records;
- site photographs and marker locations;
- neighbor notices or acknowledgments;
- professional reports and measurements;
- contract conditions addressing discrepancies.
Explore buyer guidance through Learn, compare locations through Areas, and find qualified support in the directory.
Verify the occupied land before committing.
Make boundary, access and encroachment review an express due-diligence condition when those facts affect the purchase.
Find land due-diligence supportFrequently asked questions
Is a fence proof of a Thai land boundary?
No. A fence, wall, hedge or occupied line can differ from the official parcel record. Buyers should compare the title plan, official markers and conditions on the ground.
When should a buyer request a boundary check?
Before an unconditional purchase when area, access, encroachment, road frontage, setbacks or neighboring occupation are material to the decision.
Can satellite maps confirm the legal boundary?
No. Online maps are useful for orientation but do not replace the official cadastral record, recognized markers or an authorized survey process.
What if a boundary marker is missing?
Do not recreate or move it yourself. Ask the responsible Land Office about the appropriate verification or survey process and notify affected neighboring owners where required.
Does a boundary survey confirm legal access?
Not by itself. Access may depend on a public road, registered servitude, private agreement or other legal right that must be checked in the Land Office record.
Sources & References
- Department of Lands
- Department of Lands — citizen service guide
- Royal Thai Survey Department
- Royal Thai Government Gazette
Primary and official sources are cited above. Government rules, fees and procedures in Thailand change over time and vary by office; always confirm current requirements with the relevant authority before relying on them. BAANLYY never takes paid placement in editorial content.
