About Us

MainStreet 407 Design is a full-service architectural, engineering, interior design and construction management firm serving residential and commercial projects.

The principals of MainStreet 407 Design have worked on major projects throughout the Continental United States and parts of Canada.

MainStreet 407 Design is a wholly owned subsidiary of 407 Associates, LLC, which provides through three other subsidiaries¬† residential, commercial and industrial construction services.¬† The family of 407 Associates’ companies allows for the sharing of design and construction professionals for projects which require a wide range of services, and offers greater material and subcontractor buying power, with cost savings passed on to our customers.

Over the course of more than 30 years, MainStreet 407 Design and its predecessors have provided design, construction management, general contractor and subcontractor services for residential, commercial and industrial properties and projects.