That likely crosses the line between private/public. Just like your favorite grocery store is private, but for public access.

I'd really be careful with your construction.

Is that all new construction? It is a bit late in the planning process, but it is still time to get it right.

Elevations aren't entirely clear. Are the steps more for aesthetics than any practical purpose?

I'd just get rid of the steps and put in a sloping ramp. with the 1:12 (or so) max slope. You may be able to get around that slightly if it isn't exactly a ramp.

I suppose the other question is what alternative access is there around that? Can wheelchairs, and bikes simply bypass the steps?