# Nor Sor 3 Gor (หนังสือรับรองการทำประโยชน์ (น.ส. 3 ก.))

Source: https://www.thailandpropertyinvestor.com/glossary/nor-sor-3-gor

**Definition:** Nor Sor 3 Gor is a certificate confirming the holder's right to use and possess a plot that has been mapped from aerial survey but not yet issued a full chanote. It can be sold, leased and mortgaged, and upgraded to a chanote on application.

Nor Sor 3 Gor sits one step below the [chanote](https://www.thailandpropertyinvestor.com/glossary/chanote). The plot has been measured against aerial photographs and has a defined position, so sales, leases and mortgages can be registered at the land office without the 30-day public notice that a plain Nor Sor 3 requires. In strict legal terms the document certifies possession and use, not full ownership, although in day-to-day dealings it is treated as close to equivalent.

The weakness is precision. Boundaries are less exact than on a chanote, and fences on the ground do not always follow the map. Before agreeing a lease, ask the land office for a boundary survey and ask the owner to apply for the upgrade to chanote, ideally as a condition of the contract. The upgrade is routine where nobody objects, but it takes time, and the surveyed area can come out smaller than the area on paper.

See [title deeds and due diligence](https://www.thailandpropertyinvestor.com/guides/title-deeds-and-due-diligence) and [buying a villa in Thailand](https://www.thailandpropertyinvestor.com/guides/buying-a-villa-in-thailand).