Barnhill Building Group is honored to receive the 2025 Carolinas Association of General Contractors Pinnacle Award for our work on the Coastal Credit Union Headquarters project in Raleigh, NC. Alongside pinnacle partners Precision Walls and Triple-R Electric, this award was achieved with hard work and high standards.
The Coastal Credit Union Headquarters Renovation responded to post-pandemic workplace evolution by transforming a fully occupied corporate headquarters into a modern, collaborative environment that encourages employee connection and productivity. Spanning more than 150,000 square feet across six active floors, the renovation reimagined circulation, workspace design, and amenity spaces while the building remained in continuous operation.
A defining goal was to create indoor-outdoor integrations that support flexibility and wellbeing. The scope included open office areas, a variety of collaboration spaces, meeting rooms, and signature “communicating stairways” that connect levels without forcing occupants into corridors. Every phase of work was meticulously planned to protect sensitive record storage and daily operations below. To address historic slab and exterior water intrusion risk, the team evaluated existing conditions and designed a watertight system compatible with future finishes. This solution sealed precast panels, slab penetrations, cracks, and shafts without compromising aesthetic or functionality.
One of the most technically demanding elements was the creation of an outdoor terrace connected to a new two-story social hub. Achieving this feature required extensive coordination between excavation, structure, and façade teams. Critical steps included temporary shoring and bracing, demolition of the existing floor system, installation of new foundations and structural steel, infill of depressed slab areas, and curtainwall installation. Work sequencing had to be precise to avoid undermining adjacent retaining walls and to align terrace construction with interior improvements.
For safety and logistics, the project saw nearly 400,000 man-hours with zero lost time incidents recorded, a testament to Barnhill’s proactive planning and stakeholder communication throughout all phases of construction.
