Architects & Builders

We are architects and builders. It’s a distinction that sets KohlMark Group apart from other companies operating in the design/build space. One that positions us to uniquely serve our clients and offer true turn-key solutions for projects in all stages of development. We share in our clients passion for distinctive homes as a way to enhance quality of life and believe that well-crafted architecture can only be achieved through the collaborative efforts of a team including the client, the architect and the custom homebuilder.

A strict adherence to this team approach has been at the forefront of our success. For over fifty years, the Kohler name has been synonymous with design excellence and quality craftsmanship and our company-wide commitment to the needs, desires, functionality and budgets of our clients continues to elevate our reputation. Good design and careful planning are the underpinnings of our success but communication is the key.

Continuing and expanding the business his father began as Kohler Associates Architects, Mark Kohler formed KohlMark Group, an architecture-focused design/build company comprised of KohlMark Flach Architects—spearheaded by President Thomas Flach, AIA—and KohlMark Builders, a class A general contractor.

KohlMark Group is currently licensed to design and build throughout Virginia and is actively looking for opportunities to showcase our unique skillsets.

Founder, Kohlmark Group

With a father who worked as an architect, builder and developer Mark was well versed in the language of design and building well before his teen years. That early exposure helped shape his desire to pursue architecture and follow in his father’s footsteps. Mark is the president of KohlMark Group, a full-service residential design/build architecture company comprised of Kohlmark Flach Architects—spearheaded by President Thomas Flach, AIA—and KohlMark Builders, a class A general contractor.

Mark holds a Bachelor of Architecture degree from Virginia Tech and is a distinguished member of the American Institute of Architects (AIA). Mark has been practicing since 1984 and has served on the Board of Directors for the Metro DC Chapter of the National Association of the Remodeling Industry (NARI) and co-chaired its CotY Awards Committee. Mark gives generously of his time and knowledge, helping the local community and actively participating with charitable organizations. He served five years on the Board of Directors for both the local chapter of Habitat for Humanity and Rebuilding Together Alexandria. Mark has been House Captain for Building Together Alexandria for ten years and serves at his local homeless shelter on a regular basis.

President, Kohlmark Flach Architects

Tom earned undergraduate degrees in Economics and Psychology from Vanderbilt University before changing course and pursuing a Master of Architecture degree from Virginia Tech. A consummate perfectionist with a deep knowledge of architectural styles and influences, Tom has been practicing since 1992 and is a distinguished member of the American Institute of Architects (AIA).

A long time employee and former Vice President of Kohlmark Group, Tom Flach launched Kohlmark Flach Architects in 2015 to preside over the architectural services of Kohlmark Group.

He is licensed in the state of Virginia and is pursuing licenses in Maryland, Pennsylvania and North Carolina. He loves travel, the arts and spending time with his wife and kids. He makes his home in Fairfax Station, VA.

Principal, KohlMark Builders

A long time employee since 2002 and the former Director of Accounting and Administration of Kohlmark Group, Linette Drenning, along with partners Wade Greene and Stephen Smith purchased Kohlmark Builders in late 2018 and together preside over the construction services of Kohlmark Group.

President, KohlMark Builders

Stephen entered the construction industry in 1983 and started his own concrete/masonry company in 1995. Working for KohlMark Builders as a subcontractor since the late 1990’s he joined the KohlMark team in 2016. He is now helping to continue the quality construction that KohlMark Builders is known for.

Vice President, KohlMark Builders

Actively working in the residential construction industry for decades building custom and production homes as well as remodels and renovations, Wade has built it all, moving from carpentry to construction management in his early thirties and eventually running his own business.

He and his wife live in rural Loudoun County where they raised their two children.

Architectural and construction services under one roof

Homes in a wide range of styles and locations

Dedicated to green architecture and sustainable building methods

Transparent pricing and processing at every stage

Awards & Publications