Re: Parking spaces
From recent experience, I can tell you that you need to find out who owns or manages the land. If the developer still has the spaces on his folio, it may be his call. If the council has taken the scheme in hand, it is their call and they won't do it. If there is a management company, it is their call and only they can do it.
If the council has taken it in hand, they will allow any resident or the residents' association to mark out the spaces - if they are marked on the plan with the council or the land registry. The developer may take the same view.