The Chanote and the Nor Sor Sam Kor (N.S.3) are the only titles where a registered right of ownership or lease can exist and are the only ones that a prudent foreigner should consider. Below the Chanote and N.S.3 titles there are a host of other forms of land claim document such as Sor Kor Nung (S.K.1), the Tor Bor Tor Hoc (T.B.T.6) and the Tor Bor Tor Ha (T.B.T.5). Unlike the Chanote and N.S.3 it is neither possible to register a sale or lease over these land rights, nor will a bank accept them for collateral and most importantly you can't apply for (or obtain) approval to build on such land.