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TKDA is a single-source architecture, engineering, and planning firm with 300 highly-trained employee owners. We are committed to improving communities, helping business and industry grow, and serving clients by building long-term relationships throughout our 112 year history.

Company Contact

DJ Heinle, AIA, Vice President-Architecture

Company Specialties

Architecture for Renovation
Engineering-Civil, Electrical, Mechanical, Plumbing, Structural
Interior Design
Landscape Architecture
Sustainable High Performance Design / LEED or B3 Consulting (Analysis & Documentation)

444 Cedar Street, Suite 1500

St. Paul, MN 55101

Phone: 651-292-4400