275 Wyman Street

SGH designed the structure for the steel-framed office building, adjacent precast concrete parking garage, and plaza with a below-grade parking area that connects the single level of parking below the building to the garage. SGH also consulted on the building enclosure, including curtain walls, terra-cotta cladding, and plaza waterproofing. Highlights of our work include the following:

Office Building and Plaza Design

• Base building structure and foundations to support flexible office layouts
• Plaza structure with covered walkway and landscape features over below-grade parking
• Structural alterations for tenant features
• Cantilevered, galvanized steel entrance canopies

Parking Garage Design

• Precast concrete structure, including gravity- and lateral-load-resisting systems, foundations, and support systems for the facade
• Floor and drainage profiles
• Steel framing for the roof-mounted solar array

Building Enclosure Consulting

• Evaluated the proposed enclosure design and provided recommendations to improve performance
• Reviewed building enclosure submittals to compare with the design intent
• Observed ongoing construction to compare with the project documents
• Performed field air and water infiltration testing of the curtain wall and observed flood testing of the plaza waterproofing to compare with performance expectations