@MonoXimian I've had usufructs added to chanotes at Muang, Udon Thani & Muang, Prachuap Khiri Khan Land Office (not Hua Hin), and nothing as complicated as in other replies. It was a simple process, at land office, no lawyer need, nothing translated into English, and no other entity (village headman) had to sign off anything. Simply ask to have added at time of transfer. If they allow, as easy as my past experiences, land office rep will put in the info in computer (fill in blanks form), you'll need passport. Print it out, and you sign it. To easy, and cost <100 THB. Length of usufruct, up to land office, some allow for life, 30 yrs or less. My understanding, 2 types; 'use' & 'use & modify'. Think all of mine (13) have been 'use & modify', means you can do whatever you want to land & structures on said land. Also means, in my situation & local land office, you have complete control of land & structures. I actually had to sign off, on any addition, modification to the house and or land, that wife submitted to land office. It was a very simple & inexpensive process. I just tried to verify if same process at Hua Hin office, via local forum, but HHforum is now defunct. I asked Google AI, and it pretty much agrees with me, and should be the same as Muang district land office. If not, they will inform what is needed, and you can simply return another day and submit said paperwork. Does not have to be done at transfer day. Good Luck