Innovative Seismic Upgrades

A key aspect of the project was the seismic upgrade of the unreinforced masonry and timber structure. Our innovative approach involved assembling the seismic moment frames outside the building and lifting them through the roof. This method not only expedited the construction schedule but also minimized the risk of fire during the welding process. The seismic enhancements included the installation of new shear walls, spread footings, grade beam foundations, structural steel moment frames, and steel and concrete drag-tie collector beams.

Modern Amenities with Historical Charm

Beyond seismic upgrades, the project included a comprehensive overhaul of the building's systems. We installed a new class-A built-up roofing system, three traction elevators, and modern plumbing, electrical, and HVAC systems. These updates ensure the building meets contemporary standards of comfort and efficiency, making it a desirable office space while maintaining its historical character.

Preserving Architectural Grandeur

Throughout the project, our field coordination efforts safeguarded the building's historic architectural features, minimizing impact on city traffic and ensuring the preservation of its unique charm. The final touch involved sandblasting the interior masonry and timber, restoring the building's original grandeur and highlighting its historical significance.

A Landmark Revitalized

Spanning 165,000 square feet over six stories, with two below-grade levels, 123 Townsend stands as a testament to the successful fusion of past and present. This transformation not only revitalizes a historic landmark but also provides a functional and aesthetically pleasing space for modern office use. By preserving the building’s historical essence while integrating cutting-edge technology and systems, we have created a unique and inspiring environment for future tenants.