Any one meeting the ‘local’ conditions will be eligible to apply.
However, if you do choose to join the ECLT at this stage, you will be able to have some influence over the design of the development by voting at the general meetings. You could also stand to be a member of the board and perhaps participate in the negotiations with Aster and general decision making. You might even offer to help with admin!
And having more members can sometimes help when it comes to applying for funding.