The length of time taken to obtain a tribunal hearing date will depend on the backlog of cases but is likely to be many months. You will usually receive a decision in writing several weeks after the hearing.
The process leading up to the application to the tribunal will generally take around six months or more. However, once the freehold is advised that an application for a hearing has been made, they may decide to negotiate to try to resolve matters out of court, which is likely to reduce the time taken.