23rd & Main is a 13 unit, 21,000 SF condo project in Seattle designed to be LEED Platinum and meet or exceed the 2030 Energy Challenge performance standards. Working with a team of consultants, the building is designed to have an extensive green roof to filter rain water that is captured in an underground cistern for landscaping and toilet flushing. Ecotope mechanical engineers designed high efficiency heating systems including power pipe technology to recapture heat from wastewater, triple glazed SHGC glass and south and west side shading systems. The project is unbuilt at this time. Acting as Project Manager, Cary Westerbeck oversaw this project from schematic design through permitting while at Johnston Architects pllc.