Sustainable by Design
Since 2009, LS3P has been a signatory of the AIA 2030 Commitment, reflecting our dedication to advancing the AIA’s goal of achieving carbon‑neutral buildings by the year 2030 through thoughtful, responsible design practice.
LS3P’s definition of design excellence centers around high-performance, sustainable outcomes. This focus reduces buildings’ environmental impact, lowers long-term maintenance and operation costs, provides improved occupant comfort and productivity, and ensures that a building will retain value for decades to come. Building owners, occupants, and the surrounding community benefit from sustainably designed facilities.
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LS3P’s Sustainability Leader, Leigh Pfeiffer, serves as a firmwide resource for sustainability and high‑performance design. She holds both a Bachelor and Master of Architecture from Tulane University and brings nearly 30 years of architectural design experience, along with 16 years of university-level teaching focused on sustainable design studios. For more than a decade, Leigh has served on thesis committees for undergraduate and graduate students, contributing to AIA‑ and USGBC‑recognized projects, competition award winners, and the development of original sustainability‑focused curricula and coursework.
Leigh’s professional background includes urban planning and design work in California, Florida, Germany, and China, with experience spanning design development, implementation, construction documentation, and LEED documentation.








