Hi alex pocovnicu,
HMRC does not provide clearance, outside the Non-Statutory Clearance Service, to potential claims for tax relief that might be included on subsequent Self Assessment tax returns.
We can, of course, assist by providing any relevant guidance material and on that score.
It would be a good starting point to refer to BIM37000:
BIM37000 - Wholly and exclusively: contents
And the definition of the wholly and exclusively rule, as it is provided in the first paragraph there.
There are a couple of BIM references that touch on the rules on tax relief and accommodation and these are here:
BIM37665:
BIM37665 - Wholly and exclusively: duality of, or non-trade, purpose: non-travel topics: accommodation and subsistence
And:
BIM37928:
BIM37928 - Wholly and exclusively: expenditure having an intrinsic duality of purpose: living accommodation
Thank you.