Hi Sarah!  Sorry, only on briefly over coffee earlier, but action taken -)  A nice case alright - a housing estate in an invented suburb, legally still part of Kilbarrack.  But Bayside is now established, having had its own identity since the löate 1960's, and being essentially an "island" between DART and coast road.  The only issue which blurs the lines is the occasional attempt to "rebrand" parts of it as Sutton.  So I have created the Bayside category, which has a respectable number of entries anyway.  Perhaps later we should reconsider Sutton Park, Hazelbury Green  and many road / street articles, but until we can review the topic as a whole, I think we can leave them, as long as no one attempts to list them directly as suburbs - they must fit into a larger topic which is properly notable.