About Us

Lia Nielsen & Mary Jane Augustine


Our Mission is to create healthy, beautiful and sustainable spaces –whether residential, commercial or institutional— for our Clients. We provide the Products, interior design, project management services, and procurement assistance 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 2014. As a construction manager, Lia 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 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. Lia is one of only a small group of people who are 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 was formerly a partner with the law firm of McCarter & English in both its New York and Newark offices. She practiced construction law for more than 40 years, representing clients in contract negotiations on major construction projects, before joining her daughter, Lia Nielsen, as Co-Principal of Simply Sustainable in 2017.

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.

Mary Jane became a WELL Accredited Professional in 2017 and received a Certificate in Healthy Materials from the Parsons School of Design in 2021.


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 that believe health and sustainability are the hallmarks of the future and should be a key part of all design and construction.

As a member of the GBC collaborative, Simply Sustainable has access to a wide variety of top industry specialists with the expertise needed for any Green Building project. For more information, visit www.greenbuildingcenter.com.