New Sherwin-Williams HQ could rise 36 stories, design package shows The Sherwin-Williams Co. A massing study shows the Sherwin-Williams Co.'s planned headquarters in the Warehouse District. The dark blue buildings are the first phase of the project, while the light blue buildings represent future development. Toggle Fullscreen The Sherwin-Williams Co. A massing study shows the 36-story office tower that the Sherwin-Williams Co. plans to build in the Warehouse District. a two-story building facing Public Square and a 920-space garage along West Third Street will complete the first phase of the headquarters project. Toggle Fullscreen The Sherwin-Williams Co. A site plan shows the layout of the Sherwin-Williams Co.'s planned headquarters project, which will fill a long-running gap between Public Square and the Warehouse District.