The Orange County Transportation Authority (OCTA) started discussing the station as early as 2012.

[3] A station planned for neighboring Yorba Linda was rejected by its local city council on March 16, 2004.

[5] A former packing house was demolished on the site to make way for the station.

[6][7] As of April 2019[update] construction was repeatedly delayed, owing to negotiations between Metrolink and the track's owners, BNSF.

[8] In January 2020, it was announced that construction of the Placentia Metrolink station would begin later in the year, with the station expected to be open by June 2022, but it has once again been delayed, with OCTA claiming construction of the project is "on hold" until mid-2024.