Robert Stott

Hi, I work entirely from home in my 9-5 day job. I also have a small business of my own that I run from home. I complete a self assessment each year. Recently, we had issues with water getting into the room I work from and needed a new roof. Is there anywhere on my self assessment form that I should be putting this down? Does it count as an expense, or loss - or is it irrelevant to my self assessment? Thanks!