I think that if I were a parent looking for daycare I might be concerned about basement care for the following: Mold or dust and I might need reasurance that my child won't be stuck in a basement all day. Especially in the winter months. So if you do decide to change your daycare space to the basement make sure you focus on those 2 things with your clients. "big windows" or "daily play outside" etc. I don't have a basement to do a daycare in and have never had my kids in one but those 2 things come to mind.

As a provider I'd be worried about drop in parents, early or late. How do I get upstairs to let them in if they're running behind or if I have different drop off times. My parents all come between 4 and 5:30. They have pick up times, but there are those days when they beat traffic and they're here 15 min early. Just make sure you plan for that. Maybe a holding area upstairs with different toys so they can wait for mom and dad.

Just some stuff to think about.