Ideas for area above front door?

Strange area above the front door that has flooring, yet unable to access. I was thinking that I could cut the wall on the right which would connect this area to my daughter's room. Perhaps put up railing, etc. Any ideas? Thank you in advance!

Strange area above the front door that has flooring, yet unable to access. I was thinking that I could cut the wall on the right which would connect this area to my daughter's room. Perhaps put up railing, etc. Any ideas? Thank you in advance!