Western Michigan University:
Dunbar Hall
Project Details
Location
Kalamazoo, MI
Services Utilized
OPR Workshop
MEP Commissioning
Building Envelope Commissioning
IAQ Testing
Project Size
88,000 sf
Project Achievements
Achieved a 43.2% reduction in energy use compared to ASHRAE 90.1-2010 benchmarks.
Reduced irrigation water demand by 72%
The Challenge
Dunbar Hall presented a complex set of challenges typical of adaptive reuse projects, compounded by the building’s original mass concrete structure and outdated systems. Low floor-to-floor heights constrained mechanical system design, while the existing envelope required careful integration with new performance expectations.
During construction, unforeseen conditions further complicated execution, including water infiltration issues, deteriorated concrete panel joints, and leaks impacting electrical infrastructure. Equipment installation was challenged by limited ceiling space, and coordination between new and existing systems required careful oversight. Operational challenges also emerged, including outside air damper performance during weather events and maintaining appropriate environmental conditions in specialized spaces such as radio studios and dance facilities.
Project Summary
Western Michigan University’s Dunbar Hall renovation and addition transformed an approximately 88,000 SF facility into a modern, high-performance academic building supporting communications, dance, and collaborative learning environments. The $42 million adaptive reuse project included 77,000 SF of renovation and 11,000 SF of new construction, reimagining the building to enhance space utilization, support active and distance learning, and create flexible social and study environments.
Catalyst Partners provided OPR workshop, MEP commissioning, building envelope commissioning, and IAQ testing services, supporting the project from schematic design through occupancy. The commissioning process was fully integrated into the project’s collaborative design approach, aligning system performance with the Owner’s Project Requirements (OPR) and sustainability goals. The project achieved significant improvements in energy efficiency, indoor environmental quality, and operational performance through a rigorous and coordinated commissioning process.
Innovations
From a systems perspective, the project evaluated and implemented high-performance HVAC strategies, including a Dedicated Outdoor Air System (DOAS) paired with chilled beam technology as an alternative to traditional fan coil systems. This approach supported energy efficiency while addressing spatial constraints.
For the existing building enclosure, a “breathable” envelope strategy was developed to balance moisture management with durability and constructability.
Outcomes
The project demonstrates how rigorous commissioning and integrated design can successfully overcome the inherent challenges of adaptive reuse. Dunbar Hall now operates as a high-performance academic facility that supports occupant comfort, flexibility, and long-term operational efficiency.
Importantly, the project established a culture of performance accountability through stakeholder engagement, LEED-driven goals, and third-party verification. With ongoing monitoring and fault detection in place, the university is equipped to sustain building performance over time, maximizing the return on its capital investment and supporting broader campus sustainability goals.