Non-Negotiables – Opening Up a Fitness Studio

Hello everyone,
I am in the process of beginning the framework for opening up a fitness studio. I have an idea for what I want to do with the business plan, marketing, etc. 

However when picking an exact location, what are your non-negotiables? Things like parking, location, transit-accessibility, etc. What are things you must have and what order would you rank them in? 

Thanks!