I've been a private guitar tutor for a number of years now( next year will be a decade) and I've been using the front room in my house. No one has ever complained about it and in fact it provides a relaxed informal atmosphere so not to scare or intimidate learners.
However as I've progressed through the years and improved my service with branding, equipment and quality of tuition at some stage I will need to expand my teaching space. I have a garage at the back of the house but its totally empty, no electricity supply, no actual door to lock it up and its just sitting there.
What would I need to have done and how much would I be looking at approx to get it kitted out to be a teaching room? Basic things would be electricity mains, soundproofing and a secure door.
I know a mate that has a similar sized garage for storage and stuff, he said builders quoted £8k to do his garage.