Downsview Park is the first extended new rapid transit station on Line 1 Yonge–University of the Toronto subway and a commuter rail station on the Barrie commuter rail line of GO Transit. 
Subway service began on December 17, 2017, and GO Train service began on December 30, 2017.
The station is fully integrated multi-modal transit facility serving both lines. This is in contrast to other interchanges between TTC subway and GO Transit rail lines, which have separate structures for each agency.
Here are some pictures taken months after the 'grand opening' so a lot of the outside shots will most likely become outdated as the station will continue to change in the development towards the support of both Downsview Park and the Keele Industrial area north of Sheppard Avenue West.
The station is set back to allow for transit oriented development on the south side of Sheppard Avenue West. To maximize transit oriented development, bus terminal parking and Passenger Pick-Up and Drop-Off facilities will be available at the future Sheppard West and Finch West Stations. Bakersfield Street will be extended to provide vehicle access to the west side of the station. The TTC subway station is centred under the CN/GO Rail line to provide better integration between transit modes and to make room for transit oriented development. GO Transit has committed to cost sharing for this fully-integrated, multi-modal transit facility.
The development potential of Parc Downsview Park is maximized by locating a significant portion of the station in the 30-metre strip on either side of the CN/GO right-of-way that is not available for development.
Entrance pavilions are located on both sides of the CN/GO Rail line with access for pedestrians on footpaths adjacent to maintenance and emergency response access routes. A maintenance driveway extends from the Bakersfield Street and Sheppard Avenue West intersection, allowing for access to the Bakersfield substation that is integrated with the west pavilion. The east pavilion contains both TTC spaces and GO Transit ticketing spaces.The station is located to allow transit oriented development to build up to a more urban nature in the future, with the design of the TTC station meeting height limitation requirements for the Downsview Airport.
Entrance pavilions are located on both sides of the CN/GO Rail line with access for pedestrians on footpaths adjacent to maintenance and emergency response access routes. A maintenance driveway extends from the Bakersfield Street and Sheppard Avenue West intersection, allowing for access to the Bakersfield substation that is integrated with the west pavilion. The east pavilion contains both TTC spaces and GO Transit ticketing spaces.The station is located to allow transit oriented development to build up to a more urban nature in the future, with the design of the TTC station meeting height limitation requirements for the Downsview Airport.
