Setting up a business?

[lynseysorefingers]

Hi! Last january i left my jewellery sales job to get back to making jewellery. i was treating it more like a hobby, making jewellery for friends and family etc. Therefore i didn't register it as a business. It's going well and i want to set it up as a business but don't know where to start! i also have my workshop up the loft of my house and i'm wondering if there will be health and safety issues, a permit from working at home etc. Any advice would be fab
Here's some pics of my workshop and favour place in the house