The Offsite Construction Summit: Washington DC 2026 will be held on November 19, 2026, at Westfields Marriott Washington Dulles in Chantilly, Virginia, USA. Organized by the Offsite Construction Network, this premier industry summit brings together architects, engineers, developers, contractors, manufacturers, government officials, designers, and construction professionals to explore the latest advancements in offsite and modular construction. The one-day event features expert presentations, case studies, panel discussions, an exhibit hall, and dedicated networking sessions focused on innovative building solutions for housing, healthcare facilities, and critical infrastructure supporting Northern Virginia's growing data center industry.