PKA Architecture — Peterssen/Keller Architecture — is a Minnesota-based residential architecture firm specializing in custom homes, lofts, cabins, and boutique commercial projects. Founded in 2009 by Lars Peterssen, AIA and Gabriel Keller, AIA, the firm has earned recognition as one of Forbes' 2025 America's Best-in-State Residential Architects.
The PKA team brings a rigorous, design-forward sensibility to each project — from urban Minneapolis lofts to lakeside retreats across the upper Midwest. Their work has been celebrated by AIA Minnesota and featured in the Star Tribune, reflecting a consistent commitment to design excellence and architectural craft. Every project is approached with care for the details that transform a house into a home.
As a Mastercraft Architecture Partner, PKA Architecture works directly with verified specialty craftsmen from the Guild Roll — bringing access to the Twin Cities' most skilled trade studios to every project.