 Palomar Street opened as part of the initial "South Line" of the San Diego Trolley system on July 26, 1981, operating from north to Downtown San Diego using the main line tracks of the San Diego and Arizona Eastern Railway.This station was renovated, starting March 2014, as part of the Trolley Renewal Project; it reopened with a renovated station platform in November 2014.There are two tracks, each with a side platform.