UK - What type of spider is this?
It appears to be a Noble False Widow Steatoda nobilis



From http://britishspiders.org.uk/wiki2015/index.php?title=File:Steatoda_nobilis.jpg

It apparently is thought to be introduced to the UK, and there are some reports that the bite has caused some issues for some people.

https://en.wikipedia.org/wiki/Steatoda_nobilis