First Light
Seattle
Residential/Hospitality
Sent by: MG2
Region: ENR Northwest
Owner: Westbank Corp.
Main design company: James KM Cheng Architects
General contractor: Build group
Executive Architect: MG2
Civil Engineer: KPFF Consulting Engineers
Structural Engineer: Glotman Simpson
MEP Engineer: Integral
The First Light project was conceived as a “total work of art,” says James Cheng, founder and principal of James KM Cheng Architects. The base of the building includes “The Veil,” a permanent art installation by local glass artist John Hogan that wraps the office levels in a curtain of glass discs.
One of the biggest challenges of the project was the 80-foot-long cantilever pool on the 47th floor. “It was decided very early on that we needed to take advantage of the magnificent panoramic views from the top of the building,” Cheng says.

Photo by Moris Moreno; courtesy of MG2
The pool, located 440 feet above the ground, required the installation of a temporary structure, consisting of castellated steel beams that were joined at one end to the concrete core of the building, to support the formwork of its concrete body. “[They] they were cantilevered about 40 feet beyond the footprint of the tower,” says Jooyeol Oh, director of MG2, the project’s executive architect. The beams were also connected to the front edge of the floor slab below, reinforced by three concrete slabs connected by temporary steel poles. The full length of these beams was needed to provide two years of collaboration. swimming pool.

The building contains over 50 unique unit types, which reduces the level of repeatability typically relied upon in tower projects.
Photo by Moris Moreno; courtesy of MG2
The scope included the excavation of Seattle’s deepest publicly accessible basement—eight stories deep with an additional 12-foot-deep slab. “Given the extreme excavation depth, limited site footprint and lot line construction, a telescopic bucket was required to efficiently remove debris,” says Mitch Zutter, Build Group project executive.
To facilitate close collaboration, the team co-located offices. “Questions were resolved through in-person discussions rather than phone tag or extended email exchanges,” says Zutter. Oh, ok, citing an issue with the 7th floor garden as an example: “Because the architect was working on site and participated in the impromptu discussion, an alternative solution was found much faster than in a typical RFI process. In fact, an RFI was issued simply as a confirmation of the solution.”
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