Found in the garage, hope the photo is good enough as the she/he was either playing dead or wouldn't keep still, anyway on it's way now. Many thanks
The faint chevron markings on the back make it S. nobilis
I think ChrisE may have meant to type S. grossa (as per his link), rather than "S. nobilis"?
Thanks, you're quite right - S. grossa is exactly what I meant to type! I blame all this sneeze-inducing tree pollen, very bad for the concentration.
Thanks to both of you for your knowledge and help,
The spider was very black apart from its abdomen and no dimples on it's back as others have had which is what confused me. Not like the 'link' pic.