Home office / Salon

Hi! I have a in-home salon at my  house. It's originally a sunroom on the front of the house with a separate entrance and also closed off to the rest of the house. I know there is a deduction with it being a "separate structure." One of the examples was a garage (most are attached) Could I apply that it's a separate structure because of it being an add on and completely closed off from the house? Thanks!