The Floating Third: Historic Building Renovation & Modern Residential Addition
Engineering the Substructure: 100-Year-Old Foundations & Adaptive Scope
Project Overview
Transforming historic commercial structures into modern residential spaces requires an acute understanding of legacy construction methods. Originally constructed over a century ago, the existing building showcased traditional turn-of-the-century masonry—where continuous multi-wythe brick walls extended down to rest directly on gravel and stone beds rather than modern spread footings.
Recognizing the structural limitations of the original footprint, our collaborators at HAUS helped guide the project through an extensive year-long scoping, feasibility, and engineering study. To achieve a structurally sound result without placing unmanageable loads on the historic brickwork, the scope was strategically refined. The new rooftop residential addition was re-engineered to sit above the more recent structural steel and reinforced CMU addition. To ensure total stability across all eras of the building, WERK coordinated the installation of deep helical pier foundations beneath the existing substructure, successfully transferring loads safely past the historical soil beds.
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