Foundation Engineering
Bedrock in lower Manhattan lies at depths of 15–20 meters below street level, interrupted by decades of previous urban infrastructure. Our geotechnical team designed a hybrid foundation system combining 840 mm diameter driven piles with a 2.8-metre thick transfer slab.
Structural Innovation
The building employs a high-performance concrete core wall system with outrigger frames at three mechanical levels. This configuration allowed us to reduce the core wall thickness from a conventional 1,100 mm to just 700 mm at lower levels.
LEED Platinum Achievement
Achieving LEED Platinum on a commercial tower of this complexity required coordination across 47 separate sub-systems. Key contributors included triple-glazed unitized curtain wall with solar-responsive fritting and a greywater recycling system processing 85,000 liters per day.
Lessons Learned
The Metro Financial Tower reinforced our belief that sustainable design and structural efficiency are complementary, not competing objectives.
Share this article:
About the Author
David K. Osei
Director of Sustainability
Expert contributor at AGT International, specialising in sustainable construction and engineering innovation.