About Us


Our Mission is to create healthy, beautiful and sustainable spaces –whether residential, commercial or institutional — for our clients. We provide the products, materials, interior design and project management services necessary to achieve our clients’ health and wellness, aesthetic and functional goals.


Lia Nielsen

Lia Nielsen LEED GA, WELL APPrincipal

Lia Nielsen is an experienced construction manager and sustainable products expert who founded Simply Sustainable, LLC in 2015. As a construction manager, she worked on the LEED Platinum Bank of America Tower in New York City, and the Frank Gehry-designed Peter B. Lewis Science Library and the Frick Chemistry Laboratory at Princeton University. In 2010, she joined noted green architect, Jason Kliwinski, in establishing the Green Building Center, of which she remains co-owner.

Lia is a business graduate of Boston University and attended the Rinker School of Building Construction at the University of Florida where she studied construction management and sustainability. She is both a LEED Green Associate and a WELL accredited professional. LEED is the international standard for sustainable Green buildings. The WELL Building Standard, a companion rating system to LEED, focuses on building interiors and the health and wellness of building occupants. WELL places particular emphasis on healthy and environmentally friendly building products and materials. Lia is one of only a small number of people certified to teach WELL in the State of New Jersey. She speaks frequently on healthy materials and sustainability topics.

Mary Jane Augustine

Mary Jane Augustine LEED AP, WELL APCo-Principal

Mary Jane Augustine, who was formerly a partner with the law firm of McCarter & English in both its New York and Newark offices, practiced construction law for more than 40 years before joining her daughter, Lia Nielsen, as Co-Principal of Simply Sustainable in January, 2017. As a transactional attorney representing primarily owners, developers and design professionals on major construction projects, Mary Jane accrued a wealth of construction industry experience which she brings to her work with Simply Sustainable.

Mary Jane’s interest in, and involvement with, sustainable design and construction is longstanding. She became a LEED Accredited Professional in 2009, one of only a handful of lawyers nationwide to hold the designation at that time. She also wrote and spoke frequently on green building topics during her law career.

In 2017, Mary Jane also became a WELL Accredited Professional. WELL is a companion building rating system to LEED. It focuses on the health and wellness of building occupants, including the selection and utilization of healthy and environmentally friendly building products and materials.


Green Building Center Simply Sustainable is an Anchor Member of the Green Building Center

Green Building Center

The Green Building Center is a collaborative of like-minded building and design industry firms, all of whom believe that health and sustainability are the hallmarks of the future and should be key to any construction.

As a member of the GBC team, Simply Sustainable has access to a wide variety of top industry specialist to suit the needs and goals of any project. For more information, visit www.greenbuildingcenter.com.