Hey everyone (boy have I been enjoying my respite from being a zoning officer lol).. In one of my part time jobs, I help fitness businesses navigate the zoning and building permitting process. I keep running into the businesses being required (over some unknown threshold) to provide two ADA bathrooms, sometimes upgrading air handling systems and other improvements. I recall that our building codes staff told me once that if businesses could get classified under a certain classification (can't recall if it was "business", "mercantile" or "assembly"), that it was kind of a catch all for smaller businesses and didn't carry so many requirements.

Can anyone help me out with the classification and what the threshold is? Is it based on square footage, or.....?

Thank you!