About Kath Williams + Associates

Meet the Kath Williams + Associates Leaders

Dr. Kath WilliamsLEED Fellow 2011

Dr. Kath Williams brings many years of experience in sustainability to help committed owners and project teams meet their sustainability goals. Her areas of specialization include application of green building rating systems, sustainability education and training for corporations and professional firms, and development of high performance building standards.


The firm's specialty in LEED project development, LEED documentation, sustainability education and training, and strategic planning using an integrated design and the charrette process are globally recognized. 


Kath's professional expertise was recognized with the awarding of the LEED FELLOW 2011 designation as one of the first 34 in the world!  





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Lesly MroczkowskiSenior Associate; LEED AP BD+C
Since 2006 Lesly has worked with Kath Williams + Associates and became a LEED accredited professional in 2008. In 2011, Lesly was named Senior Associate with the firm. Her certification as LEED-AP BD+C has been renewed through November 2017.

She has been part of the leadership team on numerous KW+A LEED projects, particularly organizing and supporting outstanding LEED documentation submittals. With an attention to detail, Lesly will help guide you through the LEED documentation process.

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Morgan KlaasLEED AP O&M

Morgan graduated from Seattle University in 2012, with a Bachelor’s Degree in Pre-Law and Political Science. After working in the pharmaceutical field, Morgan took a year to travel and teach internationally, where she discovered her passion for environmental policy and preservation.

Morgan began working with Kath Williams + Associates in February 2016. In the summer of 2016, Morgan lead a youth service trip to Myanmar, where she oversaw and assisted in the building of a “Green” teacher training center and school office complex.

Morgan achieved her LEED Green Associate accreditation in June 2016.  Her specialty is supporting clients develop their certification using LEED Operation and Maintenance.




Our Network Of Associates
Results?  Integrated Design

Kath Williams + Associates brings together professionals in site, water, energy, materials, and indoor environmental quality to be the most experienced and committed professionals. We specialize in identifying:

 ENERGY MODELERS, who contribute to the project from design development through construction documents

 LIGHTING SPECIALISTS, who evaluate and recommend daylighting strategies and who document results for LEED
 MATERIALS EXPERTS, who know sustainable materials and who advise on long-term durability and maintenance
 LANDSCAPE DESIGNERS, who understand "native" and "adaptive" plantings which lead to appropriate water use 
 ENERGY AUDITORS, who evaluate existing buildings and design upgrades to support an earlier return on investments
 WATER EXPERTS, who know how to combine stormwater control with water use reduction in cost effective systems.