49.Section 7abolishes the common law rules of common interest as they apply to tenements. This section should be read with sections 8and 9 which restate the common law in statutory form.
50.Although the doctrine of common interest will no longer apply to tenements, it will still be applicable in any dispute involving a tenement building and any other building (whether a tenement or not) or any land not pertaining to the tenement.
Commentary on Sections Support and Shelter Section 7 – Abolition as respects tenements of common law rules of common interest