Reviewed by ThaiLawOnline, a licensed Thai law firm practising in Thailand since 2006. Thai lawyer of record: Wichuda Atthamethakon, LL.M., Thai Bar Licence 3149/2556.
Last updated on September 5, 2026
Nor Sor 3 (หนังสือรับรองการทำประโยชน์, น.ส.3, also written N.S.3, NS3 or Nor Sor Sam) is a certificate of utilisation issued by the Department of Lands that confirms the holder’s right to possess and use a plot of land, without conferring ownership and without a precise survey. It sits two steps below the chanote in the Thai hierarchy of land documents. The land can be sold, mortgaged and encumbered at the Land Office, but every registration must first be advertised for 30 days, and the boundaries are described by reference to neighbouring plots and landmarks rather than measured points.
Table of Contents
What a Nor Sor 3 certifies under Thai law
The Land Code B.E. 2497 distinguishes ownership, which only a chanote records, from the right of possession (สิทธิครอบครอง) that a Nor Sor 3 records. The holder is presumed to be the lawful possessor and may transfer that possession, but the State has never issued a full title for the plot. The document carries a black Garuda emblem and was historically issued by the district land office rather than the provincial office.
Boundaries are the weak point. A plain Nor Sor 3 was drawn up from the applicant’s own description, without aerial photography or a ground survey, so the area and shape on paper often differ from what is fenced on the ground. Because of this, any sale, mortgage, lease or usufruct on Nor Sor 3 land is registered only after a 30-day public notice posted at the Land Office, the district office and the land itself, during which neighbours and other claimants may object and freeze the transaction.
Practical points for a foreign buyer or lessee
Nor Sor 3 land is common in rural provinces and on the older parts of islands, and it is often priced well below chanote land nearby. It is not worthless, but it demands more work. A lease, usufruct or superficies can be registered on it, so a foreigner can take a real right over Nor Sor 3 land; the registration simply takes longer because of the notice period, and some Land Offices ask for a fresh boundary check first.
Ask for the upgrade before completion, not after. The holder can apply to the Land Office for a ground survey and, if the adjoining owners raise no objection, the plot is converted to a chanote. A cautious buyer makes the sale conditional on that conversion, or at least on a surveyor confirming that the plot on the ground matches the certificate. Also confirm that the Nor Sor 3 has not lapsed: possession that is not used or is left in another person’s hands can be lost far faster than titled land. Due diligence on Nor Sor 3 land should include the neighbours, not just the paper.
Comparing the three possessory and ownership documents
| Feature | Nor Sor 3 | Nor Sor 3 Gor | Chanote |
|---|---|---|---|
| Right recorded | Possession | Possession | Ownership |
| Survey | None; description only | Aerial photograph | GPS ground survey with posts |
| Garuda colour | Black | Green | Red |
| Public notice before registration | 30 days | None | None |
| Loss of right by another’s possession | 1 year (Section 1375 CCC) | 1 year | 10 years (Section 1382 CCC) |
The last row is the one foreigners overlook. Under Section 1375 of the Civil and Commercial Code, a possessor who is dispossessed must sue within one year or lose the right; on Nor Sor 3 land that one-year rule, not the ten-year adverse possession rule, governs. A Nor Sor 3 plot left empty, or occupied by a relative of the seller, can quietly change hands. Nor Sor 3 Gor, with its aerial survey and no notice period, is the safer of the two possessory documents.
Frequently asked questions
Can a foreigner lease or buy Nor Sor 3 land?
A foreigner cannot buy any land in Thailand, whatever the document. A foreigner can register a lease, usufruct or superficies over Nor Sor 3 land, but the Land Office must post a 30-day public notice first, and any objection during that period stops the registration until it is resolved.
Can Nor Sor 3 be upgraded to a chanote?
Yes. The holder applies to the Land Office for a ground survey of the plot. Adjoining owners are notified, and if nobody objects to the boundaries the office issues a chanote in place of the Nor Sor 3. The process commonly takes a few months and is worth completing before money changes hands.
What is the difference between Nor Sor 3 and Nor Sor 3 Gor?
Both record a right of possession rather than ownership. Nor Sor 3 Gor was prepared from aerial photographs, has a green Garuda and can be registered without public notice. Plain Nor Sor 3 has a black Garuda, no survey, and every transaction on it needs a 30-day notice.
See also: Nor Sor 3 Gor, chanote, Sor Kor 1, adverse possession, title deeds in Thailand and how to read a title deed.
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