PDI Design Group is an architecture firm based in Minneapolis, Minnesota and specializes in architecture, engineering, and de ... sign. PDI is the successor firm to the former Leonard Parker Associates (TLPA). With a portfolio of more than 50-years of architectural history, PDI continues to follow the tradition of excellence by providing modern, sustainable, and innovative designs for the 21st century. PDI Design Group has extremely talented designers ranging from seasoned architects who have designed such buildings as the Minneapolis Convention Center and the Humphrey Law Library, to young architects who have just begun their architectural journey, and are ready to use the latest technology and resources to give expression to the ideas and dreams of our clients worldwide. Our designs are functional and beautiful, resulting in buildings which have a sense of rhythm and balance, as well as economy and artistry. Every aspect of our designs flows together in form and function to provide a delightful space for living, working, entertaining, or just relaxing. read more