About Kath Williams + Associates

Meet the Kath Williams + Associates Leaders

Dr. Kath WilliamsPresident, LEED 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 2019.

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 KlaasAssociate, LEED 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 and LEED v4 Operations and Maintenance in 2017.  Her specialty is supporting clients as they develop sustainable policies and strategies to reach certification using LEED v4 Operation and Maintenance.

Linda VonkenAssociate, Europe

Linda has extensive experience in business development and management, which she brings to KW+A's leadership team. She serves as lead associate in the new office in Maastricht, The Netherlands. 

In addition to being a successful entrepreneur with two companies, Linda has been recognized for her work as an Historian at Explosive Remnants of War Consulting (ACE), Culemborg, and as a Junior Heritage Consultant South at The Cultural Heritage Agency, Ministry of Education, Culture, and Science, Amersfoot.

Drawing on her successful experience in art consulting, research and data analysis in archaeology, and her passion for sustainability, she supports new construction projects as well as the repurposing of historic structures.

A graduate of Maastricht University, Linda holds a Master of Arts degree in Philosophy, Arts and Heritage and a Bachelor of Arts in Social Science. She is fluent in Dutch, English, German and French.

Chloe NaeseIntern

Chloe Naese is a third-year architecture student at Montana State University. She first learned about LEED when her high school, Millbrook School, Millbrook, NY became an early adopter of LEED.  The project was the renovation an old barn and earned LEED-Silver.


Chloe decided to pursue sustainable design after attending lectures by a non-profit firm, Terreform, and LEED developer Rob Watson, at the 2013 Student Climate and Conservation Congress. She has worked as an intern studying native plant restoration at Pu’u O Hoku Ranch, Molokai, Hawaii. 


Her future aspirations are to help cities become more livable through sustainable design and to experience new countries and cultures through travel. When she is not at the studio, she likes to draw, go for runs, and volunteer at the animal shelter, which began at Trevor Zoo, Millbrook, NY.


For KW+A, Chloe is taking the lead on research and case study preparation of KW+A’s certified projects.

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.