The extension is being built by Link 427, a consortium of six companies that tendered the winning bid to Infrastructure Ontario. The project is estimated to cost $616 million, and will include the design, financing, and construction of the extension, as well as its maintenance for thirty years. Construction will require periodic closure of eleven roads, including Regional Road 99 (now permanently closed); McGillivray Road, which will be realigned at Rutherford Road; and the intersection of Huntington Road and Major MacKenzie Drive.