Brian Alessi is a respected sustainability leader, architect, and high-performance building specialist with more than two decades of experience advancing energy-efficient and low-carbon design solutions within the global AEC industry. As Sustainability Director at Henderson Engineers, he focuses on decarbonization strategies, resilient building systems, and environmentally responsible infrastructure for commercial, institutional, and residential developments. His expertise includes Passive House standards, zero net energy design, green building certifications, sustainable mechanical systems, and long-term operational performance optimization. Through his leadership in climate-responsive architecture and sustainable engineering practices, Brian provides valuable insight into energy-efficient commercial environments, water-conscious restroom systems, healthy indoor environments, and the evolving role of sustainability in shaping future-ready built spaces.