Yes, Bat Nouveau is definitely a goth band because most of their albums belong to the Gothic Rock and Deathrock genres, which are among the core subgenres of goth music. Albums like Metamorphoses, Dust, and What Has Been Now are examples of their goth sound.
One of the other goth artists that is similar to them is Bauhaus.
Bat Nouveau is located in Australia, Brisbane, active in 2008 — present. You can find more information about Bat Nouveau on their GothDB band page.