I want to use my small outside garage as a home office. I was planning to insulate the walls inside and lay some flooring. I was looking at doing this as a DIY job as it seems quite simple. However I have looked at conversions etc on the internet and the subject of building regulations rears its head. I just want to work in the day, do not intend it to be a seperate living area, I am not cooking, sleeping eating in there etc; just a computer, printer and desks. Do I need building regulations just for this? If so it seems a bit over the top.