Stylistic elements include rounded-gable parapets, and an Art Nouveau lettering plaque over the smaller entrance.

The Pine street substation is constructed using load bearing face brick with cement rendered details.

Exterior materials include face brick, cement render, and a steel roller shutter.

As at 13 November 2000, the Pine Street substation is an unusual, rare and representative example of a well-detailed Interwar Gothic building built in face brick with rendered details.

[1] This Wikipedia article was originally based on Substation - Bellevue, Cammeray, entry number 00937 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.