Felix – Firstly, you’re correct in observing that the Executive Committee (E/C) has no authority to allocate Common Property for the personal use of resident/s; that’s a matter for the Owners Corporation (O/C) to resolve by way of a Special Resolution at a General Meeting.
It’s a shame that the CTTT Adjudicator didn’t see fit to make a ruling, but he/she still should have made an Order dismissing the Application, that should have included the reasons for that decision, and both the O/C and the Applicant should have a copy of that; right?
With regard to a further Application, there’s no reason that I’m aware of for there being but one Applicant / Application, but why would you want to head down that route once again?
Depending upon all the circumstances, including the reasons for wanting to dismiss the Strata Manager (?) and the numbers of like-minded Proprietors (in addition to the 4 you mention) who are concerned about the illegal use of the storage space and other issues, it may be better for Proprietors to requisition a General Meeting of the O/C where all the issues may be placed on the Agenda.
You can do that by drafting Agenda Items to address and resolve each of the issues, by having those endorsed by a minimum 25% of Proprietors (by unit entitlement) under the Provisions of Sch 2 Cl 31(3) of the NSW Strata Schemes Management Act (1996), and by then presenting that “requisition” to the Secretary of the E/C who must then convene a Meeting “as soon as practicable”.
In that way, your O/C is complying with the Adjudicator’s ruling, and that by the way should be the preamble to your requisition.