You could try the old equestrian centre on commonside, I think they are still operating as a livery yard.If you google Selston Equestrian Centre, then you should be able to find a phone number for them somewhere.
There's stables and land next door to the EC on Commonside. The owners don't have horses, but have rented it out previously, there's nothing there at the moment. Might be worth a visit. I don't know them personally though.