Historically, some services used to terminate at Oatley before returning north; this is no longer the case but the points remain in place.

Oatley never built on the grant and it passed to his third son after his death in 1839, who sold the land to Charles Cecil Griffiths in 1881.

The location of Judd's brick works appears to have been a major reason for the building of Oatley railway station in 1885 in what was then a very sparsely populated area.

This relocation of the line was due to the steep gradient leading down to the Georges River bridge which the goods trains had difficulty climbing.

The 1905 brick arched Mulga Road underbridge at Oatley was designed by Per way Branch staff, New South Wales Government Railways.

[3] In 1918, the present signal box was incorporated within the then open north end awning area of the platform building.

The electrification of the line from St James to Oatley was undertaken in the 1920s, and the first electric train ran on 16 August 1926.

[3] On 3 March 2001, a commemorative trip, utilising RailCorp's heritage electric fleet, was made by the Governor Professor Marie Bashir and invited guests to mark the 75th anniversary of the inaugural journey from St James to Oatley in 1926.

Modern canopies roof the pedestrian subway in the middle of the underbridge, and connect to the platform building.

[3] This is a small prefabricated concrete location hut to the southeast of the southern end of the station platform.

[3] Oatley Railway Station is of aesthetic significance for its landscape setting, flanked by parks to east and west at its northern end, and for its simple yet attractive weatherboard platform building, one of only two weatherboard platform buildings on the Illawarra line.

[3] Oatley railway station was listed on the New South Wales State Heritage Register on 2 April 1999 having satisfied the following criteria.

Oatley Railway Station appears to have been located in what was then a sparsely populated area due to the opening of Judd's Hurstville Brick Works nearby in 1884.

The Mulga Road underbridge and pedestrian subway are of historical significance as part of a series of railway works undertaken to upgrade the line from 1905 into the 1920s.

[3] The place is important in demonstrating aesthetic characteristics and/or a high degree of creative or technical achievement in New South Wales.

Oatley Railway station is of aesthetic significance for its landscape setting, flanked by parks to east and west at its northern end, and for its simple yet attractive Federation Queen Anne style-influenced weatherboard platform building.

[3] The place has potential to yield information that will contribute to an understanding of the cultural or natural history of New South Wales.

[3] The place possesses uncommon, rare or endangered aspects of the cultural or natural history of New South Wales.

[3] The place is important in demonstrating the principal characteristics of a class of cultural or natural places/environments in New South Wales.

[3] This Wikipedia article contains material from Oatley Railway Station group, entry number 01214 in the New South Wales State Heritage Register published by the State of New South Wales (Department of Planning and Environment) 2018 under CC-BY 4.0 licence, accessed on 2 June 2018.