The station has an
island platform and was constructed using the
cut-and-cover method. There is a
pocket track at the south end of the station which allows a southbound train to change direction. When Osgoode was built, some utility lines were relocated away from the station to allow for a future "Lower Osgoode" station on the projected but never-built
Queen Street subway, but unlike at
Lower Queen, no actual construction took place. When it opened, Osgoode, like and the stations on the Yonge line, had
Vitrolite tiles on its walls. Cracks resulting from the high water table at the station forced the TTC to cover over these tiles in the 1970s with coloured vertical slats along the outer trackside walls and closely matched ceramic tiles on structural elements on the platform itself. In 2016, the slats were replaced in turn by off-white panels, evoking the original design. Entrances to the station were all built as open stairways from the sidewalk, with the panel above the
lintel emblazoned with the scales of justice, which referenced the
Superior Court of Justice at Osgoode Hall. Subsequent refurbishment resulted in a generic TTC style replacing the unique symbolism. In 2006, a new entrance, with elevator access to the concourse level, was integrated into the construction of the
Four Seasons Centre, at the southeast corner of Queen and University. Along with an elevator to the platform level within the fare paid area, this made the station fully accessible as of 2007. Plans from 2008 call for
Diamond and Schmitt Architects, who were responsible for the opera house, to design complementary covered entrances at the other three corners of the intersection. == Ontario Line ==