About Us

MainStreet 407 Homes Companies are builders of single family homes and townhomes in the Mid-Atlantic region encompassing Washington, D.C., Delaware, New Jersey, Pennsylvania, and Virginia.

The company is part of the 407 Associates, LLC family of companies which through four other subsidiaries, home improvement and restoration, custom home building, and design and engineering services. The family of 407 Associates, LLC companies allows for the sharing of design and construction professionals for projects that require a range of services, and offers greater material and subcontractor buying power, with cost savings passed on to its customers.

Each MainSteeet407 Homes Companies’ project manager and onsite superintendent has over 20 years of experience in the field that he or she brings into every customer home-building project. Our project managers and onsite superintendents interact closely with the professionals in our affiliated MainStreet companies for their expertise in architecture, interior design and engineering as well as with those professionals that have with Masters licenses in Electrical/Plumbing and HVAC.

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.

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 their knowledge and skills through various professional development programs and workshops. He is a member of several professional organizations, including AIA, NCARB and NOMA. As the Director of Design, Karl leads a talented team of architects and designers, inspiring them to push the boundaries of creativity and bring their best work to every project. He is passionate about mentoring and developing the next generation of designers and is committed to making a positive impact on the communities in which he works. Karl is dedicated to helping the company achieve its vision of becoming the leading provider of innovative and sustainable design solutions.

Dana Lecompte
President of Main Street Glazing Glass Company

Dana LeCompte is an accomplished project management professional with over 40 years’ experience in estimating and project supervision. He started his career in 1979 with Robert L Walsh where he worked as a supervisor with a staff strength of over 25 employees per site. In 1996 Dana began his own company named ‘Monumental Glass’. Monumental Glass catered to scheduling, estimating, material procurement, installation, and site supervision of windows and glass. He did not limit his expertise to just his own company, he extended his tentacles across other organizations as a certified project manager. He worked with reputable companies such as GAMA, MGA, Accent Metal Services, Revolution Windows System, and many other organizations between the years 2003 and 2022 before joining MainStreet 407 Glazing. He has brought over four decades of extensive experience and expertise in the glass industry to our company. These achievements have earned him the position of President of MainStreet 407 Glazing.

Brenda Duckett

Brenda Duckett has vast experience in the Finance and Managerial Sector. Brenda started her career as a Mortgage Customer Service personnel with Equifax, rising quickly to supervisor within 6 months of her assumption of duty and exiting the company as VP of Operations. She was the CEO of two startup companies, serving contractors and small businesses with office administration, accounting service, and permit processing.  Brenda has been a manager for the past 33 years, outlining her success as the Director of Finance and overseeing the Administrative offices for 407 Associates, LLC. She can be described as the engine room of our organization.