My understanding (from Sales Centre staff) is that Pinnacle plans to start construction in the late summer - beginning with shoring in the August / September timeframe. Historically, in the Toronto area Pinnacle has not needed a specific level of pre-sales in order to start construction. Pinnacle started construction on their Pinnacle Centre complex (four buildings at Bay / Harbour / Yonge streets) in the north east corner of the lot, at the same time as the sales centre opened in the south west corner.