At Sizemore Group, we foster a culture of critical thinking, constant improvement and exploration – all of which support our passion for sustainable design.

Our staff is a talented group of people who thrive on innovation, collaboration, intense debate about the issues that affect the design and quality of our environment, social life and community. We believe in delivering value to our clients. Our Professionals are routinely honored for their contributions to the profession.

photo1Michael M. Sizemore, FAIA
As the founding principal, Mike Sizemore brings a passion for great design to the firm. The ultimate collaborator, he uses his rare gift to bring the essence of each client’s vision to fruition through design. Through his passion for creating exemplary spaces and communities that embody spirit of the place and the community, he has contributed to the revitalization of town centers, academic campuses and civic buildings. Recognized by numerous awards, speaking engagements and publications, Mike is one of the leading national experts in Town Center design. His design of Smyrna Town Center has received the National ULI Award of Excellence. Email:



photo3Lily del C. Berrios, AIA, LEED AP BD+C
Lily Berrios has 30+ years of award-winning architectural planning and design experience. As a principal, she leads the higher education and campus planning practice at Sizemore Group. Lily uses a team approach to design and management that yields excellent results in creating a sense of pride,

ownership that inspires clients to pursue full implementation of their plans. She has worked with over 30 college campuses nationally and internationally on their programming, campus planning, design and implementation of projects. Her professional affiliations include the Society for College and University Planning (SCUP), where she represents the southern region, and the American Institute for Architecture (AIA). Email:

Tom is a leading voice in sustainable design practice in the profession. His passion drives the integration of sustainable design across all our market sectors. He has significant expertise in schools and libraries both system-wide programming and planning and design of facilities and buildings.

Tom is active in the Atlanta Chapter of the US Green Building Council (USGBC), as well as ASHRAE, which develops energy standards and guidelines. He has been a frequent speaker at national level forums and conferences and has published several papers and authored several books on energy savings guidelines. Email:

Bill de St. Aubin 2-5-14 PreferredWilliam J. de St. Aubin, AIA, LEED AP
Bill de St. Aubin brings over 30 years of experience leading successful designs involving complex sustainable environments. His process is to collaborate in an open manner with multi-disciplined teams to assure aspiring sustainable projects and studies are completed within constraints of the market. He directs each project or town plan to realize the highest aspirations of the community. The results are sustainable environments which provide a sense of heritage, civic pride and stronger sense of community. Often these projects and studies are catalysts for the redevelopment of an entire urban/suburban district. A partial list of his experience follows. Email:


Anneta Griffin PreferredAnneta Griffin, CDA
Anneta heads our accounting department. She helps the firm run smoothly & efficiently to ensure profitability and success. Anneta provides mentorship to our administrative staff. Email:

AngelAngel Kauffmann, IIDA, LEED AP BD+C
Angel Kauffmann is an award-winning designer with over 10 years of experience and a resident of Woodstock for the past 18 years. She has a wide range of experience including civic, higher education, healthcare, religious facilities and residential development. Her experience includes space planning, construction documents, millwork detailing, finish selection, furniture inventory, artwork and accessory selection. Email:

DeannaDeanna Murphy, AICP
Deanna Murphy is an urban designer, planner, and architectural designer who works to enhance our cities through community-oriented place-making and sustainable design. Deanna has worked as a designer and planner in the private, non-profit, and public sectors over the past 13 years. Currently, she is a planner and architectural designer at Sizemore Group, where she leads planning and architectural projects throughout the state. Deanna is a certified member of the American Planning Association, an expert in Tactical Urbanism – short-term, inexpensive placemaking strategies, and a 2016 alumni of Arts Leaders of Metro Atlanta (ALMA). Deanna co-founded PopATL, a tactical urbanism braintrust that works to create excitement and possibilities through temporary installations that highlight how we can improve our everyday spaces. Email: