Karn Charuhas Chapman & Twohey PC

Karn Charuhas Chapman & Twohey PC, doing business as KCCT, is a full-service architecture, planning, and interior design firm headquartered in Washington, DC that has served federal government clients since its SAM registration in May 1999. As a for-profit corporate entity, KCCT provides comprehensive architecture and engineering services to support the infrastructure and facility requirements of multiple federal agencies, with particular specialization in diplomatic facility design, security enhancements, and renovation projects for both domestic and international locations.

KCCT has delivered a diverse portfolio of architecture and engineering services through its federal contract awards, spanning projects valued from approximately $14,000 to over $3 million. The firm has provided design services for diplomatic Defense Attache Offices in locations including Managua, Nicaragua ($391,085), Bern, Switzerland ($433,004), and Budapest, Hungary ($409,848), all funded through the Department of State via the Engineering and Diplomatic Security Technical Information Services office in Omaha. Domestically, KCCT has undertaken significant work on the Harry S. Truman Building in Washington, DC, including a major renovation project for permanent security measures and streetscape improvements valued at $1,200,744 and a Phase 2 modernization effort worth $3,058,002, both awarded by the Department of State's Bureau of Overseas Building Operations. The firm has also performed HVAC design revision services at the U.S. Mission to the United Nations in New York for $108,528 and investigated systemic HVAC problems for the Bureau of International Organization Affairs. Additional delivery orders included architecture and engineering design services for the Florida Regional Center and general A-E support services through the U.S. Army Corps of Engineers. All contract awards were issued without set-aside designations, indicating KCCT competed on an open, competitive basis. The firm has served as a subcontractor on projects involving planning, architecture and interiors work under HDR Architecture, Inc., as well as project development services with Machado and Silvetti Associates, Inc.

KCCT currently holds two significant multiple-award indefinite delivery contracts that serve as vehicles for its federal work. The Department of State awarded KCCT a $50 million domestic architecture and engineering IDC effective through April 2029, under which the firm provides design services for studies, new construction, and renovation projects primarily in the Washington DC area. The U.S. Army Corps of Engineers awarded KCCT a $30 million worldwide architecture and engineering IDC valid through May 2028 for security and renovation design services supporting diplomatic posts, military sites, and federal agency facilities globally. Under the USACE IDC, the original solicitation specifically sought A-E services for Defense Intelligence Agency Defense Attache Office renovations and other DoD and federal infrastructure projects, with requirements for overseas travel and personnel holding Top Secret clearances, including the ability to produce, store, and distribute classified documents. Through these IDCs, KCCT has been issued multiple firm-fixed-price delivery orders for projects such as the TRSS AE Design services and Budapest renovation work, demonstrating the agencies' continued reliance on KCCT's specialized design capabilities to support infrastructure and security requirements across the federal government's domestic and international facility portfolio.