Mona AvCity of Gosnells » BeckenhamDo you (or did you) live on Mona Av in Beckenham, WA? How has Mona Av changed over the years? What was Mona Av like in the early days? Who were the original residents of Mona Av? Ask a question or tell your story below... April 18, 2017 by PerthMETRO.net zoom out · satellite view · hybrid (zoom out) Rate this street If you would like to be a custodian/moderator of Mona Av, please contact us.