A registered section 27 exclusive use area constitutes a real right in immovable property. A body corporate or trustees cannot lawfully transfer, cancel, diminish, or convert that right, including by creating rights of way over it, through a general meeting resolution without the written consent of the owner and compliance with the requirements of section 27(4) of the Sectional Titles Act. Accordingly, a scheme resolution purporting to do so is invalid, void, and may be set aside under sections 39(4)(c) and 39(4)(e) of the CSOS Act as an unreasonable interference with individual rights.