• The Monarch School Living Building Studio

    Living Building Studio

    Continually seeking advancement, The Monarch School built a Net-Zero Energy Studio Classroom under the built environment's most rigorous performance standard, the Living Building Challenge.

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  • Ziegler Cooper Corporate Offices

    Ziegler Cooper Corporate Offices

    Determined to make its new office a sustainable space from project inception, Ziegler Cooper Architects created its 25,000--square-foot tenant build-out in Houston, Texas achieving LEED-CI Gold Certification.

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  • The Monarch School Houston Texas

    The Monarch School

    The highly innovative Monarch School in Houston, Texas, is one of the greenest schools in the nation. The school’s three buildings combine environmentally responsive objectives with sensitive design that supports health for students, faculty and its natural surroundings.

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Tarrant County Courthouse


Since 2011, our project consultation services ranging from large university buildings to small bank prototypes garnered more than 75 LEED certifications. GreeNexus is a woman-owned business founded on a passion for advancing the built environment, and this passion fuels all our work.

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Amanda Tullos


As founder and Principal of GreeNexus Consulting, Amanda’s talent and passion direct the sustainable design efforts for a variety of project types. Amanda brings an in-depth understanding of architecture and proven success at facilitating some of the most sustainable projects in the nation.

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