Single adult here in a 1-bed flat:
Mortgage - £301
Insurance - £26
Council tax - £72
Leccy+gas - £56
Water - £20
Internet - £26
Phone - £38
Landline - £0, so just pay for mobile
Add these up and divide by 4.3333 to get it as a weekly figure - £124
That leaves me with £4/week for food! I'm only on £13k but gladly that means I take home £220/week. Still not a great amount as I pay for a gym, food ofc, then there's not a lot left for going out and impossible to save.
I wish I had your council tax bill.