I usually would search for myself, but I need to be super sure about the identification because I need to know if I need to get an exterminator in here or not. (I think it might be a giant house spider, but don't let me influence your analysis.)
So I live in the northern part of Ireland (About 40 minutes from Derry Northern Ireland over in County Donegal) and I went to my bathroom to a VERY fun surprise this morning. It was this wonderful spider in my bathroom. For reference, the lip of the glasses it is depicted in are 8 - 8.5 cm in diameter.
The missing leg was not my fault either, I was very gentle with the spider and released it outside post photo-shoot. (Warning: these are macro shots of the said spider)
More high resolution photos available on my Flickr (SolarLunix).