One of my favorite coffee shops is a little hole in the wall in the basement or an old brick building.
Despite the fact that to get to the shop, you need to go down a narrow set of exterior stairs, the owner was required to put in a wheel-chair accessible bathroom. It's a small space and the bathroom is nearly as big as the seating area.
It's an asinine requirement.
The owner looked into moving to a different spot a block away, which would have been on the main level. He backed out of that when the city told him he needed to install a grease trap to meet code. This despite the fact that nothing he sold contained any sort of grease or oil that would make it down the drain.
Zoning laws and HOAs are great in concept. But they tend to get taken over by the Delores Umbridge [1] types who love nothing more than punishing people for violating stupid rules.