SPGB is a collaborative design studio that is focused on learning, laboratories, and public works projects.  Our professional associations date back to 1996, and our individual talents complement and support each other.  We average 20 years of experience, and we’re organized as a powerful and agile team that can solve unusual problems on expedited schedules.


Our mission is to design high-performance buildings that are beautiful, functional, and attainable.


SPGB provides architectural, planning, and interior design services.  We maintain consulting relationships with a wide range of consultants that enable us to align their expertise with our clients’ requirements.


Many of our staff first worked together more than 20 years ago.  Jim Butz started his own firm in 2004, initially known as Jim Butz, Ltd.  Tom, Michelle, and Elle joined the practice in 2010, and the firm name was changed to SPGB Architects.  The firm has since grown to a staff of 11.