Septimus Terrace (13 to 17 Septimus Street Erskineville) is a row of three terraces located on the eastern side of Septimus Street, roughly midway between Albert Street and Erskineville Road. A comparison of the 1883 and 1884 Sands Directory entries for Septimus Street Macdonaldtown shows the first appearance of Septimus Terrace in the 1884 directory:

Comparison of Septimus Street (East side) 1883 and 1884.
(Note: listed order is reversed for 1884)

A reference to 1 Septimus Terrace (17 Septimus Street) appears in an 1887 advertisement calling for applications for a general servant:

Sydney Morning Herald Monday, 28 March 1887

In 1915, 13 Septimus Street (3 Septimus Terrace), equipped with ‘every convenience’ was advertised for rent for 14 shillings a week:

Sydney Morning Herald Tuesday, 10 August 1915

Here below is an extract of the City of Sydney Map of Erskineville published in 1894, with the houses shown numbered; and Septimus Terrace highlighted:

1894 – City of Sydney section Erskineville – Sheet 10