This design brief is intended to provide high level order of magnitude framing summaries of new TRCA Head Office Development to aid in preliminary level coordination and costing. This report is based on coordination meetings that have taken place so far in 2018 with design team; concept presentation material received February through April prepared by ZAS Architects in J.V. with Bucholz Mcevoy Architects; and preliminary geotechnical investigation report #1527972(1000) prepared by Golder Associates dated October 14, 2015 and made available with original RFP in combination with newest April 13, 2018 informal design recommendations. Only high level analytical designs have been undertaken as part of this brief with most values provided based on past development works of similar structural type and magnitude. This document supersedes any earlier discussions or sketches circulated.