Land Measurements in Thailand are as follows
Land in Thailand is measured in Rai, ngarn and wah:
|1 rai||=||4 Ngan||=||1600m|
|1 Ngan||=||100 Wah||=||400m|
|2.529 rai||=||1 acre|
|6.25 rai||=||1 hectare|
The most commonly used unit for land sizes is rai.
There are 6 different types of title deed in Thailand and it is essential to obtain correct information on the deeds to any property you intend to purchase.
The Chanote and the Nor Sor Sam Kor are the only titles deeds over which registrable right of ownership or lease can exist, and are as such the only ones that prudent purchasers should consider.
Chanote (Title Deeds)
Freehold title with the owner able to leave the land unattended. An individual named upon a title deed, may use the title as proof of ownership in all legal undertakings and with the authorities Title deeds are registered at the Land Department in the province in which the land is located, and there is no waiting time required to transfer title however sub-division of the titled plot to more than nine sub-plots must follow the Land Allotment Law, Section 286.
Chanote titles are accurately surveyed, plotted in relation to a national survey grid and also marked by unique numbered marker posts set in the ground. It is the long term goal of the Land Department, that all land in Thailand will be covered under the Chanote title system.
Nor Sor 3 Gor (Confirmed Certificate of Use)
This certifies that the person named on the certificate has the confirmed right to use the land, implying all requirements for the issuance of title deed have been met, and issuance of the title deed is pending. They may be sold, leased, used as mortgage collateral etc. The holder of this certificate cannot leave the land unattended for more than 12 years.
With this documentation the land area is defined with parcel points and is accurately mapped showing adjoining plots on a map using a standard scale of 1:5000. Land with this type of documentation may be sub-divided and legal acts need not be publicised.
Nor Sor 3 (Certificate of Use)
Similar to the above Confirmed Certificate of Use except that not all of the formalities to certify the right to use have been performed. Before a transfer can be made, a notice of intent must be posted and then 30 days public notice is necessary before any change of status over the land can be registered.
No parcel points are marked and it is issued upon a specific plot with no frame of reference to connecting plots. Problems can occur when attempting to verify the actual land area of such plots covered by this documentation.
Sor Kor Nung (Certificate of Possession)
This recognises that a person is in possession of land but the Certificate does not imply that there are any rights associated which the possession. Land with this documentation cannot be bought or sold, and may only be transferred to the direct heirs of the person who holds it
Por. Bor. Tor 6
This is documentation that all land must have in order for a tax number to be issued and tax to be paid upon the benefits of the land. It does not in anyway infer title, ownership or possessory right of the land, only that it has been assessed as taxable.
Sor Kor 1
This is the form required to notify the government of a possessory claim to a piece of land. This was introduced in December 1954 and was used by the government to verify claims upon the land with the eventual issuance of Nor. Sor 3 or Nor. Sor. 3 Gor certification (see below).