thank you for all the responses

looks like i need to look into a few things but that's put some of my worries to rest. I was considering renting a small industrial unit to set up in as i would assume they are all set-up for housing businesses and then that keeps things separated from the house but i don't think ill be pulling in enough profit (at first) to justify that.

I do have a fire extinguisher, fire blanket, fire alarm, e-stop and the wiring is all housed in pipework and was ok'd by a electrician (although not signed off).

hopefully i wont have too much stock on hand it will be mainly wood stock and items will probably made to order mostly due to having to do this on the side of my main job for now.

Thank you again