The first station at Strathfield was named "Redmyre" and opened as a "halt" on 9 September 1876. It was renamed Strathfield on 8 March 1885. The first use of the present name "Strathfield" was adopted on 8 March 1886 and was named after the mansion Strathfield House, owned by James Hardy. Strathfield station came into prominence with the construction of the Main Northern line, which had its junction off the Western line at Strathfield. The first section to Hornsby station opened on 17 September 1886. Four platforms were provided, two for the Western line and two for the Northern line. A new mechanical signal box was built on the down-side behind the down western platform, this was the first signal box at Strathfield. A station was built on a new site in 1900, and yet again in 1922. The line was quadruplicated between 1891 and 1892, causing track alterations and requiring the construction of a pedestrian subway at the western end of the station to connect all platforms.