I had a suspicion when I wrote tenure that I’d gotten the wrong word.
Sounds like the council need informing of how these projects should go in regards to being led by park companies, and maybe you should be asking what they’re planning to do with this information they’re asking of you? If it’s going to tender as one project then you could be in trouble ending up with some playground company building it.
If I was in your position I’d give them a brief on the type of skatepark you’d like to see and some ideas, and then ask them if they’re going to use that info as a starting point for park companies to make a bid for tender. If that’s the case (which it sounds like it is) then I’d explain that park design is an intricate process between a professional company and the local users, and get them to agree that you and your steering group will work with whoever wins the bid to get the park you want.
If it sounds like some cowboys are gonna build the whole thing then you need to try and stop that in its tracks asap. Dunno you probably know all this, maybe I’ve misunderstood what you’re asking exactly