GSBS has been at the forefront of sustainability for more than 30 years. Because it saves clients money, it makes people healthier and more productive, and because all of our futures depend on it. For projects big or small, we can give you the right advice so you can make the right decisions.

Our suite of services includes:

+  High-performance and Net-zero building planning and design
+  Sustainable site planning and design
+  On-site renewable energy assessment
+  LEED® rating system strategy, process, execution
+  WELL Building Standard strategy, process, execution
+  Building performance benchmarking
+  Energy Star certification
+  Carbon footprint assessment and mitigation
+  Green standards development and planning
+  Sustainable education and training

Meet the Sustainability team.


Garth Shaw

Director of Sustainability

Garth is the Director of Sustainability at GSBS Consulting. With a wide array of resources and extensive experience in energy and water efficiency, indoor environmental quality and sustainable site designs, Garth bridges the gap between design ideals and actual sustainable performance. Garth aligns client visions with specific sustainable design strategies assuring the highest level of sustainable performance appropriate for a project.


Clio Rayner

Project Manager

Clio has worked at GSBS Architects for thirteen years and has been a licensed architect in Utah for nine.  She graduated with her Masters in Architecture from the University of Utah in 2005 where her interest in and love of the environment turned into a focus on sustainable design.  This, as an integral aspect of good design, has influenced her career ever since.  Clio has been a member of the sustainability team at GSBS Architects for her entire career. She has helped guide the sustainability mission for GSBS since 2005 and played an important role in the certification of more than 30 LEED projects. Clio has always been an active member of the sustainability community in Utah as a speaker at conferences and seminars and as a guest lecturer and adjunct faculty member for University programs.


David Brems

Principal, Director of Design

David is a leader of the Sustainable Design Movement, helping establish an ethic that now runs deep in American Architecture.  He chaired the National AIA Committee on Design in 2006, uniting the AIA Committee on the Environment and the Committee on Design in a first ever collaborative vision, “The Architecture of Sustainability”.  He was elevated to AIA Fellowship in 2007 for his professional contribution to art of Design. He is an Adjunct Professor at the University of Utah, College of Architecture and Planning, teaching graduate classes in design and environmental responsibility.


Mehran “Ron” Rezvan

Building Performance Analysis   

Ron is graduate of the Architectural Engineering program at the Tehran University of Art, where engineering is central to the architectural curriculum. His passion for sustainable architecture really blossomed in Southern California as part of the design team for the Google Headquarters in Orange County, a LEED Platinum project. With his expertise in energy modeling software, Ron is invested in identifying ways to minimize environmental impact though smarter design and optimized consumption strategies.   


Heather Landvatter   

ASSOCIATE AIA, NCARB, Architectural Intern   

Heather received her Bachelor of Business degree at Utah State University, and Master of Architecture at Arizona State University, where she enjoyed teaching first- and fourth-year design students. She has spent time in Soddo, Ethiopia creating community-sustaining design solutions. She has a passion for sustainability and community service, currently acting as Associate Director of AIA Utah.