Yes, our cottages have six stairs to the front door. We do have one cottage with a ramp.
There are a few stairs getting into the cottages from outside. We do have one ADA compliant Cottage that has a ramp and does not have any stairs. Please when booking inquire about our ADA cottage.
There are some steps between the parking lot and the cottages.
To get to the main lodge which is where you check in and where they always have drinks and snacks, also, where you get breakfast there is a ramp. You can also get to the pool from there. To get into our cottage there were steps I do believe there may be other cottages without steps but I am not sure.
For the half dozen or so units that I saw, there are about outside porch 5-6 stairs to get in to the unit. No stairs inside. You should call the cottages and ask if they have any units with no stairs at all. My guess would be "no" since they are located on the edge of the harbor and need to be elevated from high tides and crashing waves.
Get an answer from The Cottages on Charleston Harbor staff and past guests.