4/C, Proposed skyscraper in Downtown Seattle, United States
4/C is a proposed skyscraper in Downtown Seattle with 93 floors rising 338 meters tall. The building combines residential units, office space, and retail areas on a site that spans between two city blocks.
A Miami-based developer purchased the property in 2015 and replaced two existing parking structures on the site. The project marks a turning point in how this neighborhood is shifting from parking-dominated uses to mixed-use high-rise development.
The building integrates residential spaces with communal areas, reflecting the current urban development pattern of mixing living spaces with social environments.
The building features 873 parking spaces accessed through car elevators rather than traditional ramps, freeing up more room for living and office areas. This approach allows the developer to fit more usable floor space into the tower.
Federal aviation officials limited how tall this building could be to avoid problems with aircraft operating at nearby airports. The original design called for a significantly higher structure before these air traffic regulations shaped the final plan.
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