Hi @Paul75, I hope you're doing well! I am tagging @Helen3 and @Mike-And-Jane0 here as they are very experienced members of our community who are also based in the UK. Hopefully, they're able to share some insights with you here.
@Helen3 I agree I did have a tenant under an AST but due to change in circumstances have to convert to AirBNB I found an overpriced policy now. It will do until I sell the house.
As an experienced host yourself I'm sure you appreciate STR insurance is more expensive than standard insurance as the risk factors are much higher so not necessarily overpriced .
dont forget there is a legal requirement for you to have a fire assessment and meet the requirements of the updated fire regulations introduced in autumn 2023 @Paul75