@fossyant
You can get the rates on an empty house stopped for 6 months which is a big help.
Is there any benefit in looking at alternative ideas- eg: take out an interest only loan to release equity from the house to pay nursing home fees so you keep the house as is- you then get tax relief on the interest on the loan, but keep the asset?
Equity release loans are priced at a significant premium to the normal mortgage market as the lender has no idea when they will get their money back. Maybe tomorrow, maybe in 20 years. As the amount drawn down compounds over time it can become a real problem. You should get professional advice on this matter
FWIW, we have just sold my Mum's house after she passed away earlier this year. The house was in reasonable condition but had an accumulation of 53 years of stuff. This is what we did:
1) Take out anything valuable asap as the house would be unoccupied (you have to let the house and contents insurer know it's unoccupied anyway. Failure to do so could invalidate the policy)
2) Declutter the surfaces but leave all the furniture in place to give it a lived in feel for sale
3) When close to completion, hired a skip and arrange for British Heart Foundation to take a number of items (in hindsight we should have paid them to do the full house clearance)
4) Took out the remaining things of use or of sentimental value, skipped the rest, leaving an empty house for the new owners
We spent nothing on the house itself. I think unless you're looking to hold onto it for rent then any money spent would be lost in the sale process.