The land title deed is a Chanote (Nor Sor 4 Jor). The Nor Sor 3 Gor and Nor Sor 3, are equivalent to a land title deed for all practical purposes as the land can be sold, leased or mortgaged. However, the boundaries are less accurately surveyed compared to land with a Chanote. There are a number of other land titles though these do not afford the owner many rights to the land under Thai law.

Chanote

True land title deeds are officially called Nor Sor 4 Jor or more commonly Chanote. This is a certificate for the ownership of land and can be used as evidence confirming the right to government authorities. It is issued by the Land Office using GPS to accurately plot and survey the boundaries of the land. This is the most secure type of land title but land with a chanote can often be hard to find.

Nor Sor 3

The Nor Sor 3 is a document certifying the use of land issued and maintained by the District Land Office to the proprietor of the land but is not a possessory title. That is to say the person holding the Nor Sor 3 has the legal right to possess the land in question and can use it as a legal document. Nor Sor 3 is a floating map with no parcel points issued for a specific plot of land and not connected to other land plots, but its boundaries are recorded according to its neighboring plots. Therefore, it may cause some problems in verifying boundaries due to lack of accurate surveys. Any change in ownership of the land must be publicized for 30 days before it can be registered.

Nor Sor 3 Gor

The Nor Sor 3 Gor has the same legal basis as the Nor Sor 3, with the difference being that in general Nor Sor 3 Gor has parcel points on the map of the land area set by using an aerial survey with a scale of 1:5000. It is a more accurately surveyed title as each plot is crossed referenced to a master survey of the land area and a corresponding aerial photograph. Therefore, it is possible to verify the boundaries of the land. However, it is still less accurately surveyed compared to a Chanote.

Sor Kor 1

Sor Kor 1 is a notification form of possessed land, which shows and maintains the existing rights to the particular land. On December 1st 1954, the government advised all land proprietors to notify their possession of land to the government using a 'Sor Kor 1' form. After it was proven that such a proprietor had possessed and used the benefit of the land legally, the government would then issue 'Nor Sor 3' or 'Nor Sor 3 Gor' as an evidence, which are legal certificates stating the owner's name that they have the right to such land according to the principle land administration law. This right will be protected by the law and can be used as evidence in any dispute with a private individual or the government.

Ref: http://www.thailaws.com