Parliament is an underground station with two side platforms. A single Grand Hall Concourse is located immediately above platform level. The station's entrances are integrated with the Sun Life Financial Centre and Heritage Place; both lead to the centre of the concourse, with ticket barriers at either end leading to the ends of the platform.[4]
The Grand Hall Concourse is 15 metres underground, while the platform itself is 19 metres.[3]
The station features two artworks: Lone Pine Sunset by Douglas Coupland, an installation of brightly coloured panels based on Tom Thomson's The Jack Pine running along the ceiling of the concourse, as well as Trails: home and away by Jennifer Stead, a series of painted metal screens located between the two tracks at platform level.[4]