Katie Irwin
Senior Associate

As an architect and interior designer, Katie brings a multidisciplinary perspective to historic preservation, renovation, and new construction projects. As a specialist in historic interiors, she applies a research-based approach to renew elements with sensitivity and grace, while creating enhanced functionality for older buildings. She is known for cohesive solutions that respect the original design intent and surrounding context.

Katie has contributed to the restoration and modernization design of many historic properties including cultural, educational, and institutional facilities. She also assists clients with new construction and expansion projects.

As a volunteer for the Association of Preservation Technology International, she focuses on the application of emerging preservation technology. She enjoys the opportunity to blend her multifaceted talents in architecture and interior design on projects of all sizes.


Master of Architecture, Certificate in Historic Preservation, University of Maryland, 2001

Bachelor of Science, Architecture, University of Maryland, 1999

Bachelor of Arts, Art History, University of Maryland, 1999


Association for Preservation Technology DC, President

Society of Architecture Historians      

National Trust for Historic Preservation           

American Institute of Architects, Northern Virginia

American Institute of Architects, Virginia    

International Interior Design Association      

Interior Design Continuing Education Council Inc.

Association for Preservation Technology International, Board Member, Co-Chair Chapters Committee

Questions or ideas? Let's get in touch.