Relauctant as I am to contradict the Mighty Cetacian, I’m tending to agree with your SM.
The closest I could find to a reference was under the Strata Schemes (Freehold Development) Act
25 Transfer or lease of common property
(1) A body corporate may, pursuant to a special resolution, execute a transfer or lease of common property other than common property the subject of a lease accepted or acquired by the body corporate under section 19 (2).
Any more authoritative views gladly accepted.