9.
1. the land on which the condominium is situated;
2. the land provided for use or for common benefit;
3. the structure and structures for stability and for preventing damage to the building;
4. the building and its parts and the accessories that are provided for use or for common benefit;
5. implements and instruments provided for use or for common benefit;
6. premises provided for common services to the condominium;
7. other property provided for use or for common benefit;
8. office of condominium building juristic person;
9. immovable property bought or acquired under Section 48(1);
10. structures or systems built for maintaining security or environments within the condominium building, for example, the fire prevention system, lighting, air ventilation, air-conditioning, the drainage system, waste water treatment, or disposal of garbage and refuse; and
11. property using the money under Section 18 for maintenance thereof
Therefore, the owner of a unit is a co-owner of the land on which the Thailand condominium is situated. The proportion of a co-owner’s ownership interest in common property is based on the proportion of the area of the co-owner’s unit to the total area of all units of the condominium.