I phoned up the planning dept, without a name or any particular bit of land mentioned , asking about stables ... yes you do need planning UNLESS it is for a working horse . So all your horses are working horses , even if they aren't there !!!!
I don't know if they have changed the rules , as they are apt to do !! , but that was from the horses mouth so to speak .
Worth giving them a call anyway , but do not mention your name or any specific land site ... just a general question .
Thats if you can't just do it anyway ...f*ckem !!!
cheers
Russ