Hi. just a quick update on what we have found out do far.
Our council tax has been reduced a band

this came about from my query about our house selling for much less than two similar houses were being marketed for but us being in a higher band. I am waiting to see whether this will be back dated to when we bought the house but that would be a bonus!
We will now be a composite tax band however, so could also pay non domestic rates (used to be called business rates - note it no longer has to be a business!!) for the stables so we are awaiting a visit to sort this out - I am hoping that it will either be deemed to be in the curtilage of our house or that the rateable value will be less than £6000 pa - then we will qualify for 100% small business relief ( even though it is not a business!) Even though some of the stables could be empty - they could still be rateable.

I think an average stable is rateable at £180/year. There are some guideline prices on the VOA site.
It's a tough one - I know what you mean about not wanting to draw attention to yourselves (I think I should just have just kept quiet - or at least done a bit more research first!).
I'm sure you have a holding number if you have livestock - both the valuers I spoke to were interested in this - so maybe it gives you some sort of relief?? I will try and find out more.
It wouldn't be so bad if it was applied fairly to everyone - I have friends with a large riding stables and facilities and they don't pay a penny in don domestic rates just because it's never come on to the valuation offices radar - even though they are registered as a riding centre with the council and pay tax (the valuation office is a section of HMRC). There just seems to be no joined up thinking!
While I am having a rant..... you get a 25% discount on your non domestic rates if you run a stud. There are so many unwanted horses in the world that seems a bit of strange policy. Anyway... I'll update this when I find out anything else.