I assume you suggest a special resolution because it’s a change to the rules?
It’s s.12 of the Owners Corporations Act 2006 (VIC). That section allows, by Special Resolution, an OC to provide a “service” to lot owners. That service can include the maintenance of lot property.
It can make sense where considerable works that affect multiple lot properties are needed. The OC can get it all done in one go and raise the funds accordingly. It can make even more sense when there’s both lot and common property involved.
Else it can be a complicated matter of appropriating costs. It’s up to the owners to decide which way to go.