Lewis Greenspoon Architects

LGA is a full-service design firm offering creative solutions for our clients and their buildings. We specialize in both residential and commercial building types, including single-family and multi-family housing, community and civic buildings, religious buildings, and professional and medical office space.


David Lewis



David Lewis earned his Bachelor of Architecture degree from California Polytechnic State University, San Luis Obispo in 1994. David has over 26 years of experience working on a range of building types, including libraries, medical, civic, hospitality, commercial, and single and multi-family residential projects. David is a member of the Huron Valley Chapter of the American Institute of Architects. In 2009, the chapter gave David its Emerging Architect Award for exceptional accomplishments and contributions to the profession. David is licensed to practice architecture in California, Pennsylvania, Indiana, Ohio and Michigan.

Bonnie Greenspoon



Bonnie Greenspoon earned her Bachelor of Technology degree from Ryerson University in Toronto, Canada, and her Master of Architecture degree from the University of Michigan in 1992. Bonnie has over 27 years of experience working on a range of building types, including schools, churches, libraries, single and multi-family residences, medical office suites, veterinary hospitals, and master plans. Bonnie has also taught architectural design at the University of Michigan where she has served as a visiting critic. Bonnie is a LEED Accredited Professional, and is licensed to practice architecture in the State of Michigan. 


AIA Huron Valley Honor Award 2017


Residential award for screened-in porch addition

AIA Huron Valley Honor Award 2011


Small project award for addition