Thomas P. O’Neill Jr. Federal Building Modernization

The modernized Thomas P. O’Neill Jr. Federal Building, formerly known as Federal Office Building (FOB) 8, offers a sustainable, Class A office environment for government tenants, including the Architect of the Capitol (AOC). The building incorporates a highly efficient mechanical, electrical, and plumbing (MEP) system that offers the owner and tenants the upmost in flexibility and reliability. The required engineering offered numerous design challenges that stretched far beyond a standard project.

The building’s chilled water plant provides critical chilled water supply for air conditioning of the adjacent Ford House Office Building, requiring GHT’s MEP engineering design to ensure continuous plant operation while all chillers, pumps, cooling towers, and the existing switchgear were replaced. Sustainable design was also a strong focus for the project team. To support the achievement of a certification level of Platinum under the LEED for New Construction & Major Renovations™ rating system, the design includes:

  • High efficiency HVAC systems, including energy recovery Dedicated Outdoor Air System (DOAS), demand controlled ventilation, a highly efficient chilled water plant, and native BACNet Building automation system
  • LED lighting
  • Green roof
  • Stormwater controls
  • Electric vehicle charging stations
  • Transformation of surface parking to green space
  • New, contemporary façade with expansive windows to capture daylight and views
Year Completed
Services Provided
GHT Studio