Firm Profile

Cornerstone Architectural Group was incorporated in 1993. We are a 13-person firm with 4 principals, including 2 founding principals each with more than 35 years of professional experience. Cornerstone realizes that architectural design demands a sensitive balance of diverse and sometimes conflicting elements, and we have focused our professional careers on consistent, functional design for public and private clients.

We have been continuously involved in multiple public school projects; designing and constructing new as well as remodeling and modernizing existing buildings, to provide welcoming, flexible, functional spaces that respond to both traditional and creative innovative models of education.

Our building envelope division provides long lasting and sustainable building envelope and solar design solutions for new, existing and historic buildings. Our team of consultants are highly qualified and experienced. We provide investigations, condition studies with recommendations, and development of bid documents.

Cornerstone Team

Andre Coppin, RRC, RRO

André Coppin, AIA, RRC, RRO

Principal | Architect | Building Envelope Consultant

Susan Doyle


Megan Koretz

Architectural Designer
Favorite Architecture: Jewish Museum Berlin designed by Daniel Libeskind -

Kaeli Hamrick

Office Administrator
Favorite Building: Cologne Cathedral, or Cathedral Church of St. Peter, Germany | Cologne Cathedral - UNESCO World Heritage Centre

Becky Braaten

Project Manager & Interior Designer
“Design is not just what it looks like & feels like. Design is how it works.” – Steve Jobs

Marc Jenefsky, AIA, NCARB, LEED AP

Principal Architect
Favorite Painting: One of my favorite paintings is Nighthawks at the Diner by Edward Hopper. His painting places you into the urban landscape with simplicity and expression.
Steven_Barnes, AIA Managing Principal

Steven Barnes, AIA

Managing Principal
Favorite Architectural Quote: “Architecture is for the user and should always be designed to accommodate the users preferred style and functional space requirements.”
Peter Andersen, AIA Principal

Peter Andersen, AIA

Principal Emeritus
Favorite Building Architecture: Alvar Aalto’s Säynätsalo Town Hall Jyväskylä, Finland

Nicholas Page

Building Envelope Technologist

Ted Tolle

Senior Project Manager

Kiera Deide

Interior Design Intern

Georgette Elliott

Administrative Professional
Brent Deide

Brent Deide

Project Architect
Favorite Quote: “The harder you work, the luckier you get.” – Gary Player

Azavier Coppin

BE Observer & Website Manager

Lance Swanson

Lead Drafter & CAD Manager
Cavan Barnes

Cavan Barnes

Architectural Designer & BIM Manager

Life at Cornerstone Architectural Group