Off the top of my head, the energy code comes to mind. Though it does not address the building's means of egress nor your question. Though with language in 2015 IECC C405.5, one has to wonder why the fuss over lighting going down to the ocean via a set of stairs.
Another thought and it is plausible, in VA beach they constructed several walk ways for accessibility purposes so disable individuals could use the beach in varying degrees and I believe the property was owned by the condo and provided an accessible path to the beach from the condo. Consider it amenities and a good place to go, if anything to provide ALL people the opportunity to get to the beach. On the other side of this, suppose the site arrival point was from the ocean side, like in ferry boat, cruise ship, etc... How would that work? It could apply if that was the only accessible point of entry to the condo? think fantasy island....