Dan Weissman is an Architectural Lighting Designer, researcher, educator, and craftsman. As Associate Principal and Director of Lam Labs at Lam Partners , he collaborates extensively with designers of the built environment, including Leers Weinzapfel, Behnisch Architecten, and SCAPE Landscape Architecture. As Director of Lam Labs, Dan oversees R+D in digital tools, daylighting, and lighting manufacturer collaborations, which led to the “Weisswall” fixture with Scout Lighting and ongoing projects with Lightly Lighting , including a DOE grant for sustainable retrofit solutions in K-12 classrooms.

Dan’s conference presentations and publications have contributed to the field of lighting design and daylighting, notably including “Integrated: A cultural History of the Non-Detail” presented with Srushti Totadri at IALD Enlighten Americas, “The Daylit Area” papers co-authored with Christoph Reinhart and Terek Radka, and “Heliotropic Shading: Daylighting a Rare Books Reading Room with Electrochromic Glass and Parametric Analysis,” published in Leukos in July 2023. Since 2023, Dan has served as Chair of the IES Daylighting Committee, leading a full rewrite of ANSI/IES LP-3 Daylight in Buildings. He has contributed to the IES Sustainable Design Committee, Solemma’s Climate Studio Product Advisory Group, DoCoMoMo New England, the Flint Collective, and was a founding member of Section Cut.

As a Lecturer in Architecture at Harvard Graduate School of Design, Dan teaches courses on light and lighting design. He has also led lighting upgrades throughout Gund Hall, including the under-trays and Classroom 111, and he collaborated with Bruner/Cott and Vanderweil Engineers on the facade renewal project, performing daylighting analysis and assisting in glazing studies that transformed the Trays into a fully-daylit space for the first time since the building’s construction. 

Dan holds degrees from Harvard GSD, the University of Michigan, Boston Architectural College, and Washington University in St. Louis, and is a professional member of the AIA, IALD, and IES. Beyond professional pursuits, Dan is an avid Mandolinist, woodworker, fiber artist, and gardener, and bakes two loaves of sourdough bread a week.