O’Brien360 is providing LEED contractor assistance and LEED Project management on a multi-phase shell and core renovation of 419 Occidental, a historic Pioneer Square building and one of three early 20th Century buildings slated for modernization as part of the Railspur Redevelopment Project. The seven-story structure is receiving a full overhaul that includes seismic and structural work, a new roof deck, and a glass-enclosed staircase in the north alleyway. The project is targeting LEED CS Platinum certification.