Marryatville is a small suburb about 4–5 kilometres (2.5–3.1 mi) east of Adelaide's central business district, in the local council area of City of Norwood Payneham St Peters. Comprising low- to medium-density housing, two large schools, a church and several shops, it also has two creeks running through it. The first European settler on the land was George Brunskill in 1839, with part of the land purchased and laid out as a village in 1848 by James Philcox.

Portrush Road is a major arterial route through the eastern suburbs of Adelaide, the capital of South Australia. This name covers many consecutive streets and is not widely known to most drivers except for the southernmost section, as the entire allocation is still best known as by the names of its constituent parts: Hampstead Road, Taunton Road, Ascot Avenue, Lower Portrush Road, and Portrush Road proper. This article will deal with the entire length of the corridor for sake of completion, as well to avoid confusion between declarations. Portrush Road is designated route A17.