Shiny, large abdomen with markings brown / creamy coloured, and a band round the lower abdomen (although this can not be seen from the photo).
No interactions present.
I have noticed with the S.nobilis around my shed and garden, that the large females often have an indistinct pattern that initially could be confused with S.grossa.
Another confusion species is Steatoda bipunctata but near the South Coast think first of S.nobilis. I have 18 around my garden and sometimes one will enter the house.
Lat/Lng: 50.5846, -2.4726
OS grid ref: SY666762