Thanks! I was printing out my council tax statements etc. just as proof that I live in the UK but it sounds like I won't be needing those documents.

I'm an Aus citizen but resident of the UK. Came here on a holiday for 3 weeks and am flying back out on Friday. What do I need to show at the airport that I'm a UK resident (non resident in Aus)? The border force link says I don't need to apply for an exemption.