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Building for the Future: Ryan Treacy on CPHC Certification and Sustainable Design


Learn more about Ryan

In this interview, Ryan Treacy reflects on his trajectory of becoming a Phius Certified Passive House Consultant (CPHC) and how the certification strengthens KSP’s commitment to sustainable design. He discusses the challenges, rewards, and impact of integrating passive strategies into current and future projects. This conversation takes place amid the ongoing wildfires in Southern California (2025), underscoring the urgent need for architects to implement sustainable, resilient design in the face of environmental threats.

What first drew you to passive building strategies? Was there a moment, project, or model building that propelled you to pursue the Phius Certified Passive House Consultant (CPHC) credential? 


Several years ago, my curiosity about high-performance buildings led me to discover Phius. What caught my attention was the challenging journey to become a Certified Passive House Consultant (CPHC). The course has expanded my knowledge and equipped me with practical skills that have already made a noticeable impact on my projects.

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A tour of the Stanley Center for Peace and Security in Muscatine, Iowa, designed by Neumann Monson Architects

Can you share insights into the most challenging and rewarding aspects of the CPHC certification process? 


Committing countless hours to the certification process was challenging at times, but the depth of information made the time investment well worth it. The program's thoroughness gave me confidence in its comprehensive approach. The most rewarding part was the final design exercise. It gave me the opportunity to apply everything I had learned into a single project, which was crucial for me as I would like to integrate this knowledge into my everyday work.

How do you plan to integrate the principles and techniques from the CPHC training into KSP’s current and future projects to advance sustainable design? 


I’ve already started incorporating high-performance detailing into my current projects, like the Silvio J. Mollo Federal Building modernization. Elements such as thermal bridge-free design, proper vapor control, and air-tight building envelopes are relevant for all types of buildings. By correctly detailing these aspects, there’s no additional cost to the owner, but the benefits are significant—lower utility bills, longer-lasting materials, and improved quality of life. Moving forward, I plan to integrate Phius principles from the very beginning of the design process, with a strong focus on prioritizing passive design.

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Silvio J. Mollo Federal Building located in New York City

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The Silvio J. Mollo Federal Building was designed to be the most sustainable federal building in New York City

Looking ahead, how do you see the principles of passive design addressing shifting climates? 


According to the United Nations Environment Programme, the built environment accounts for approximately 37% of carbon emissions. Passive building design aims to address these emissions by limiting energy consumption at its source. Unfortunately, many of our current buildings fall short, with minimal insulation, drafty enclosures, and a disregard for essential passive strategies. By implementing these design principles, often at little to no extra cost, building owners can enjoy significant benefits, including lower utility bills, improved comfort, and a smaller carbon footprint.

 

How do you see the principles of passive design influencing your long-term goals in the profession? 


Passive, high-performance design should be the core driver of every project. The more I delve into the subject, the more I realize it’s not just about environmental sustainability - it’s equally about creating economically sustainable buildings that enhance the quality of life for their inhabitants. This training has been foundational for me and will undoubtedly serve as the guiding force behind my career and my passion for architecture. 

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Ryan participating in a conversation aimed at enhancing the energy performance of KSP's construction details.

Passive, high-performance design should be the core driver of every project. The more I delve into the subject, the more I realize it’s not just about environmental sustainability—it's equally about creating economically sustainable buildings that enhance the quality of life for their inhabitants.

Ryan Treacy, Project Leader

Ryan began his career in high-rise construction, where he developed a deep understanding of the technical and logistical aspects of large-scale projects. As a licensed architect and Phius Certified Passive House Consultant, he is committed to sustainable design practices that balance the three pillars of sustainability—people, profit, and planet. His diverse experience includes architecture, construction, and real estate investment; this background enables him to approach projects from multiple perspectives, ensuring innovative, environmentally responsible, and financially viable solutions across both commercial and residential projects.