Our Team.

We know that a project, no matter how big or small, is only as good as the team behind it. We see our relationships with contractors, builders, trades people, craftswomen and men, engineers and consultants as fundamental to the success of our team, at the core of which is a group of dedicated, hardworking, and occasionally brilliant folks.


Who We Are


Jan Fillinger; AIA, CPHC, LEED ap

Founding Principal & Director of Design

Jan Fillinger has devoted 30 years to designing award-winning architecture that combines building science, art, and craft into sustainable, functional, and beautiful buildings. He has built a reputation for his unerring focus on a creative mix of economy, efficiency, equity, and environment that results in projects of the highest caliber.

 Jan grew up in Switzerland where he was exposed to the combination of timeless craft, inspirational architecture, and enduring cultural aesthetic of centuries past, which instilled in him a deep appreciation and commitment to innovative creativity, technical design excellence, and environmental awareness.  At age 22 he came to the US and earned a Bachelor’s in Economics and a Master’s in Architecture from the University of California at Berkeley.  From 1986 to 1996, as the principal of his architecture practice in Berkeley he designed over a hundred residential and commercial projects. 

After moving to Eugene in 1997, Jan worked for WBGS Architects (now Pivot Architecture), where he designed the addition to the Community Corrections Center and was lead design architect of the Heron Building in the center of downtown. In 2000 he joined forces with two mechanical engineers and another architect to form SOLARC Architecture + Engineering, a firm specializing in cutting-edge energy-efficiency and sustainable design. SOLARC grew to a firm of two dozen, spearheading or consulting on a wide variety of commercial and residential projects, with a crucial role in the design of hundreds of millions of dollars’ worth of green projects in California, Oregon, Hawaii, Washington, and Utah. In 2006 Jan left SOLARC and formed Studio-E Architecture, PC. 


Teri Reifer

Director of Operations

Teri received her Masters in Social Welfare from UC Berkeley.  She is a Licensed Clinical Social Worker.  In addition to maintaining a private practice, she works as STUDIO-E’s Office Manager, overseeing day-to-day operations and business details. Teri is also a partner and managing member of the LUCiA and Arcadia Townhouse developments. Her strong organizational skills, empathy, efficiency, and attention to detail that she applies to all her endeavors are an important asset to the well-being and smooth functioning of Studio.e.



Jay Elders, LeeD AP

Project Manager; Design Associate

Jay grew up in Texas and received his Bachelor of Architecture from the University of Texas, where he helped design everything from national park visitor centers to museums.  After moving to the Pacific Northwest in 2005, Jay worked on a wide variety of projects, ranging from tiny houses to high-rise buildings.  After a stint with SERA Architecture in Portland, where he collaborated on several award-winning apartment buildings, he joined Studio-E in 2016.

Jay is known for his elaborate diagrams describing big ideas. He is a master of Revit and various other challenging rendering software.  A dedicated researcher of architectural materials and building technology, Jay is an inveterate tinkerer who enjoys tackling technical details that result in high-performance projects and several of his LEED projects have achieved Platinum ratings.


Casey Koontz

Project Manager; Design Associate

A native Oregonian, Casey joined Studio-E as a designer in early 2018 after receiving dual bachelor degrees of Architecture (B.Arch) and Environmental Studies (B.S.) from the University of Oregon, and working at L.A. Kersh Architecture as a draftsman.

Prior to his academic studies, Casey served in the United States Air Force, from 2001 to 2005, and after returning to civil life, he was a residential construction contractor and journeyman carpenter in the Eugene area for nearly a decade.

In his free time, Casey enjoys designing and printing 3D objects, training for his next obstacle course race.





Eli Nafziger

Project Manager; Design Associate

Oregon-born and a University of Oregon graduate, Eli has returned from living in other states and abroad to work as a designer and project manager on a range of residential and commercial projects, previously for Studio 3 Architecture in Salem OR, and for Willard C. Dixon Architect in Eugene OR. He joined the Studio-E team in early 2018.

Eli has a strong interest in affordable and ‘Missing Middle’ housing and high-efficiency sustainable design. When he’s not exploring the remote corners of Oregon with his two teenagers, Eli volunteers his time teaching architectural concepts to elementary students in Eugene, as part of the AIA’s Architects in Schools program.


Recent Press & Accolades