Timothy Lock, AIA, is an architect, educator, and advocate leader in ecological design whose work advances a more resourceful and resilient built environment. As Management Partner at OPAL, he leads the firm’s largest and most technically demanding institutional projects, while guiding its approach to climate action. He is the author of The Dimensions of Building Ecology, OPAL’s proprietary design framework, which measures human impact across five key areas: emissions, materials, water, ecosystems, and human health.