It is located at the Tunney's Pasture government office complex, on Scott Street at Holland Avenue.

When originally opened in 1983, the transitway in the area consisted of a through station in a below-grade 'trench' parallel to Scott Street. Each platform had an elevator and stairway to the ground level above; the two sides were connected by an enclosed pedestrian bridge, and the ground-level station area also has platforms for local buses.

On 10 May 2003, an arson at the station inflicted damage estimated at $400,000 to $500,000 CAD. The fire left portions of the station out of service for months.

On June 24, 2016, the transitway station was closed for conversion to light rail, and reopened in 2019 as the western terminus of the first phase of the Confederation Line. There are provisions to permit the Confederation Line to extend further west along the transitway in the next stage.

The station is a side platform station built below grade in a cutting. At street level, a broad concourse with two ticket barriers gives access to Scott Street and Tunney's Pasture Driveway. It also provides access within the fare-paid zone to the transitway terminal loop, allowing transfer between the bus and train without having to show a ticket or transfer.

As a terminus station, both platforms are used as arrival and departure platforms. Because of the station's side platform rather than island platform layout, displays on the concourse level are necessary to indicate which platform will next have a train departing.

The station features the artwork Gradient Space by Derek Root, a set of coloured mosaics lining the platform walls accompanied by a stained-glass skylight.

The following routes serve Tunney's Pasture station as of October 6, 2019:

Key v t e
	O-Train
E1	Shuttle Express
R1   R2	O-Train replacement bus routes
98   39	Rapid routes
N75	Night routes
40   11	Frequent routes
55   162	Local routes
284	Connexion routes
405	300s: Shopper routes 400s: Event routes 600s: School routes
Additional info: Line 1: O-Train Confederation Line Route 2: Trillium Line (currently a bus route)   Routes 5 to 99: Custom routing that connects to Line 1 and/or Route 2 Routes 100 to 199: Custom routing that does not connect to Line 1 and/or Route 2 Routes 200 to 299: Connexion (peak-period only routes that connect to the O-Train) Routes 301 to 305: Shopper Routes (limited rural service) Routes 404 to 406: Canadian Tire Centre events Routes 450 to 456: Lansdowne Park events Routes 602 to 698: School Routes   Route R1: replaces Line 1 when out of service Route R2: alternative name for current Route 2 Routes N39 to N97: night service (replaces Line 1) White backgrounds: service may be limited   Last two digits represent service area: 00s and 10s – Central 20s – Gloucester 30s – Orléans 40s – Ottawa East 50s – Ottawa West 60s – Kanata, Stittsville 70s – Barrhaven 80s – Nepean 90s – South Keys

Stop	Routes
East O-Train
A Peak West	164   251   252   256   257   258   261   262   263   264   265   266   267   268
B Transitway West	57   61   62   63   64   66   67
C Rail Replacement	R1   N57   N61   N75
D Local South/West	11   16   50   51   80   81   86   87   89   153
E Local East	11   14   16   53   54   56   61   63   66   75
F Transitway South	73   74   75   82
G Peak South	270   271   272   273   277   278   282   283   284
H Scott St. West	none

• 
  Track level platform
• 
  The bus loop at Tunney's Pasture station
• 
  The former Transitway station in 2007, taken from above the Transitway
• 
  The former transitway station in 2007, facing eastbound

Wikimedia Commons has media related to Tunney's Pasture station.

• OC Transpo station page
• OC Transpo area map with location of main buildings of Tunney's Pasture