37 Hillhouse Avenue renovation and addition

37 Hillhouse Avenue, Yale University, prerenovation, courtesy of Yale Facilities
Aerial of the project (center) facing southwest from Whitney Avenue, rendering by Christopher Williams Architects
Elevation of the project facing north from Hillhouse Avenue, rendering by Christopher Williams Architects
Elevation of the project (center) facing west from Whitney Avenue, rendering by Christopher Williams Architects
Elevation of the project (center) facing west from Whitney Avenue, rendering by Christopher Williams Architects

This project upgraded the Graves-Gilman House into an accessible academic facility that provides office and meeting spaces for the Department of Linguistics, Data-Intensive Social Science Center (DISSC), and Center for Geospatial Solutions. The project included an addition to accommodate a new elevator, egress stair, and more offices at the building’s rear.

In support of the university’s zero carbon goals, improvements were made to the building’s exterior envelope and new energy-efficient mechanical, electrical, and plumbing systems were installed.

Interior spaces were reconfigured to accommodate program requirements for renewed offices, a seminar room, a break room, and accessible restrooms. These spaces were outfitted with new furniture, IT infrastructure, and audio/visual equipment to accommodate the program.

While maintaining the building’s original historic character, exterior improvements were provided, including energy-efficient windows, a refurbished roof, façade repairs, and removal of the existing fire escapes.

Location

37 Hillhouse Avenue

Project size
  • 17,750 gross square feet (total)
  • 6,500 gross square feet (addition)
Schedule
  • Occupants began using the building in summer 2025
Impact on the area
  • Building and its surrounding area are fully operable
Building details
  • Architect, 1866: Unknown
  • Renovation and addition, 2025: Christopher Williams Architects (designer), Petra Construction Corporation (contractor)
  • Style: Italianate
  • Designation: Hillhouse Avenue National Historic District, State Register of Historic Places, New Haven Preservation Trust Landmark
For occupants and visitors
For the city

This project created labor hours and trade opportunities for New Haven residents.

Sustainability

This program is LEED v4 Gold certified in alignment with Yale’s zero-carbon-ready goals. For more information about Yale’s built environment, visit the Office of Sustainability.

Top images: 37 Hillhouse Avenue, Yale University, prerenovation, courtesy of Yale Facilities; renderings by Christopher Williams Architects