Seaforth AvCity of Armadale » Champion LakesDo you (or did you) live on Seaforth Av in Champion Lakes, WA? How has Seaforth Av changed over the years? What was Seaforth Av like in the early days? Who were the original residents of Seaforth Av? Ask a question or tell your story below... April 17, 2017 by PerthMETRO.net zoom out · satellite view · hybrid (zoom out) Rate this street If you would like to be a custodian/moderator of Seaforth Av, please contact us.