Thanks Luna. I see that many people do that for ships, etc. I was hoping there is a more discreet way of figuring it out? Surely, a person should be able to see who owns a non-hidden city?
Are you sure your not still on the build page? Anyway, I think once you click it and it tells you that, there should be the same page so click the submit button again and it should send a request. Then in your events (possibly) and in the facility request bit (definetely) it will tell you who owns it. But as Ten said, the owner will get an event too saying you requested the build permission.