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05 03 16: Matt will be on juries at the University of Arkansas Fay Jones School of Architecture and Community Design Center!

04 23 16: Erin will present the 2016 AIA Memphis Design Awards as jury chair!

04 13 16: Erin and Matt presented the firm's work to AIA Asheville.

03 19 16: Erin was on a panel of activist architecture firms for the 2016 Structures for Inclusion conference.

02 14 16: Farmhouse is on Dwell on-line!

10 15 15: Matt presented the 2015 AIA Hampton Roads Design Awards as jury chair!

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Erin Sterling Lewis [Principal] is a native of Illinois and grew up in Mississippi. She earned a BArch from the University of Kentucky in 2002. Before founding in situ studio, Erin worked for over eight years at Frank Harmon Architect PA, where she played an integral role in various projects, including the Merchants Millpond State Park Visitor Center, the Walnut Creek Wetland Center, the AIA NC Center for Architecture and Design, and the First Presbyterian Church Renovation.

Erin is involved in various community outreach and volunteer programs. From 2004 to 2006, Erin served on the Raleigh Historic Development Commission. She served on the Raleigh Planning Commission from 2009 to 2015. In 2010, Erin joined the AIA North Carolina (AIANC) Board of Directors as the Young Architects Forum (YAF) Director and is now AIANC President-Elect. She is also chair of ACTIVATE NC, which is a statewide AIANC outreach initiative to strengthen the civic role in architecture and design. Erin occasionally teaches design studios as Professor in Practice and serves on the advisory board for the NCSU College of Design School of Architecture.

Erin lives with her family in a 1923 bungalow near downtown Raleigh.


Matthew Henning Griffith [Principal] received a BS in Mathematics from Davidson College and an MArch from the NCSU College of Design, where he concentrated in Urban Design and was awarded the Kamphoefner Fellowship, the Dean’s Award for outstanding service, the Faculty Design Award, and the AIA School Medal. Before founding in situ studio, Matt served as a Visiting Assistant Professor of Architecture at the University of Arkansas, was a Project Designer at the University of Arkansas Community Design Center and worked in the offices of Marlon Blackwell Architect and Frank Harmon Architect.

Matt's thesis project at the NCSU College of Design, a community center for Camden, New Jersey, received a Boston Society of Architects Unbuilt Architecture Award. His professional experience covers the full range of design services, from feasibility study to project management and construction administration, and he managed and designed several award winning projects in his previous offices. Since 2010, Matt and his colleagues at in situ studio have received eleven local and state design awards and, in 2012, were recognized by Residential Architect magazine as one of 15 Young Firms to Watch.

Matt lives with his wife, Ashley, and their three children in a mid-century modern house 2.5 miles east of downtown Raleigh. He currently serves as Associate Professor in Practice at the NCSU School of Architecture.


Mary Conley [Designer] is a native of Durham, North Carolina with experience in renovation and new construction projects, large and small. She is an alumna of the NCSU College of Design, from which she received a BEDA in 2009 and a Bachelor of Architecture in 2010. In recognition of her design work at NCSU, Mary received the School of Architecture Academic Achievement Award, the School of Architecture Faculty Award, the AIA Triangle Scholarship, and the Irwin E. Jones Travel Fellowship to support studies in Turkey and the Czech Republic. Following her time at NCSU, Mary practiced in the Triangle for two years before pursuing graduate school at the University of California, Berkeley, where she received the Graduate Division Award from the College of Environmental Design and completed her MArch in May 2013.

Mary worked as an intern architect at Weinstein Friedlein ArchitectsSzostak Design, Inc., and Duda/Paine Architectsand has taught graduate and undergraduate courses at the NCSU College of Design as an adjunct faculty member. She lives with her fiancé around the corner from the office, where she loves to cook and dream up new projects.


Zach Hoffman [Designer] is a daydreamer and a wanderer.  He was born in Lancaster, SC, but grew up climbing trees and exploring the woods of Union County, NC.  He graduated with Honors from Appalachian State University in 2011 with a degree in Building Science. While there, he worked on the 2011 Solar Decathlon and received the Building Science Award for Design Achievement. He completed his Masters in Architecture at the NCSU College of Design in 2014, where he worked on the Benevolence Barn in Graham County with the 2014 Design Build Studio. He has worked work at Cannon Architects for the past three years, first while a student and then as a full-time intern, working on a variety of projects, including the Penland 2D2 Studio and Our Lady of Lourdes Parish Recreation Center. 

Outside of the office Zach likes to hike and camp with his wife, Meredith, bike, spoil his lab Cooper, and work on his secret dream to be a weekend handyman. His ongoing love affair with nature drives him.