Our Team

Jeff Kozero, PE 
Founder and CEO

Jeff graduated from the Pennsylvania State University with an engineering degree and is a licensed Professional Engineer. Over the course of his career, Jeff has started and grown an architectural/engineering firm from a local DMV presence to a National Footprint. In addition, Jeff has started and managed various real estate development companies that have provided development, design and construction related services. These projects resulted in over 12 million constructed square feet and valued at over $2.9Billion. Jeff has now created 407 Associates to become a complete design/development/management company.

Joseph A. Boggs, FAIA, NCARB
Director of Professional Services

Joe is an undergraduate of Virginia Tech and has a Master of Architecture degree from Harvard University Graduate School of Design. The diversity of his work has been the subject of lectures at several universities as well as being the G.T. Ward visiting professor at Virginia Polytechnic Institute & State University. Mr. Boggs is a frequent presenter at AlA Symposiums and community functions. He has won numerous awards and has been published in national and international publications, as well as being elected to the College of Fellows of the American Institute of Architects in 1995. The firm’s work has been the recipient of numerous architectural design awards. Mr. Boggs was a presenter at the 2016 AIA Convention in Philadelphia on an International Practice workshop.  His work was recently published in. ‘Honor’, a hardcover book commemorating and documenting the Uriah P. Levy Center and Jewish Chapel.

Karl Griffin
Director of Design

Karl A. Griffin has over 10 years of experience in the architecture and design industry. With a passion for creativity and a strong eye for detail, Karl has successfully led numerous design projects, ranging from residential to commercial buildings, with a focus on innovation, sustainability, and functionality. He holds a Bachelor of Architecture degree from The University of the District of Columbia and has continued to expand his knowledge and skills through various professional development programs and workshops. He is a member of several professional organizations, including AIA, NCARB and NOMA. Karl is dedicated to helping the company achieve its vision of becoming the leading provider of innovative and sustainable design solutions.

Jamilett Contreras
Project Manager

Jamillet Contreras is one of our most talented Project Managers specializing in residential house design. Her creative thinking and attention to detail plays a crucial role in overseeing the successful execution of projects from start to finish. Jamillet’s versatility and dedication are evident in her commitment to continuous learning. She actively seeks opportunities to expand her knowledge of emerging architectural trends, construction techniques, and sustainable design practices.. Her ability to navigate complex tasks and prioritize goals allows her to deliver exceptional results within strict timelines.