Section 1411 — Superficies — duration
Statutory text (Thai original)
ถ้ามิได้กำหนดไว้เป็นอย่างอื่นในนิติกรรมอันก่อให้เกิดสิทธิเหนือพื้นดินไซร้ ท่านว่าสิทธินั้นอาจโอนได้และรับมรดกกันได้
Verbatim from the Royal Gazette / Office of the Council of State
English translation
Unless otherwise provided in the act creating it, the right of superficies is transferable and transmissible by way of inheritance.
This English translation is provided for reference only and has not yet been firm-verified — always rely on the Thai original.
Firm annotation
Section 1411 sets the duration cap. Three options: (a) fixed term up to 30 years (renewable); (b) for the superficiary's life; (c) for the landowner's life. The "for life" options can outlast 30 years — useful when planning for a foreign spouse who expects to live longer than the Thai spouse. On death of the relevant party, the building reverts to the landowner unless §1416 (compensation rule) applies.