The historic Kelly-Springfield Motor Truck Co. building, constructed in the early 1900s, marks Seattle’s evolution from a settlement town to an industrial hub. Located in Capitol Hill’s dynamic Pike/Pine corridor, the building has been transformed into a modern creative office and retail space through the Legacy Capitol Hill adaptive reuse and rehabilitation project. Our design preserves the building's historical identity while incorporating modern elements, resulting in 71,500 sq. ft. of new office space and 13,500 sq. ft. of retail. The street-facing façade, characterized by its brick cladding and vibrant green ceramic tiles, was meticulously restored, including the revival of the original "Kelly-Springfield" inlaid tile sign.. The project’s centerpiece is the restoration of the exposed heavy-timber post and beam structure, blending aesthetic quality with structural function. We employed the Timber Concrete Composite (TCC) method, making this one of North America’s first projects to use this innovative hybrid structural solution. Wood columns support the second floor, while concrete columns extend to support the upper stories. Set back 20 feet from the main façade, the new addition is modern and minimalist, a quiet backdrop emphasizing the historic entrance. The sleek German curtain wall system includes operable windows that increase ventilation and reduce draft for a pleasant environment inside. The interior design embraces the building’s gritty, industrial past with dramatic elements like exposed wood ceilings, black tile echoing the antique exterior, and gothic-inspired chandeliers casting rich shadows.