Reduce your environmental footprint one strategy at a time.


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Do you have a group who wants to know more about green building? We offer a variety of informational discussions about green building.

Neighborhood Teach-Ins.


Neighborhood Teach-Ins

Our goal is to have New York City be a model in sustainability as well as making our homes healthier, more energy efficient, water-wise and environmentally responsible. Are you a community organizer or a non-profit group working to create sustainability in  your neck of the woods?  Call us and we can help you organize a seminar in your neighborhood.  No fee.  Approx. 2 hours.  Click here for more information.

Introduction to green building for real estate brokers.


Intro to Green Building for Real Estate Brokers

This 1-hour seminar will enable brokers to understand the interrelated issues around green building and be stronger advocates for sustainable design.  Approx. 1 hours.  Fee: $500.  Click here for more information.

Tenant/Shareholder Seminar:


Tenant / Shareholder Seminar

Perfect for a Co-Op or Condominium community.  A 1-hour community building seminar to teach residents how to make the most of the sustainable strategies implemented in their building.  Fee $500.  Click here for more information.


Established in 1999, Ellen Honigstock Architect PC is a full-service architecture and energy auditing firm based in DUMBO, Brooklyn.

Our solutions are environmentally conscious and the criteria we use are based on national standards developed to bring long-term saving, efficiency and well-being to our clients. Over 35 years combined experience building in New York City gives us an edge in meeting tough schedules and navigating the city's complicated requirements.

About Ellen:

As the Residential Green Building Advocate for the Urban Green Council since 2007, Ellen has been promoting sustainability in the residential marketplace in NYC.

In the position of Chair of the Homes Subcommittee the NYC Greening the Codes Task Force, Ellen has been heavily involved in recommending new green policy in NYC as related to updating building codes, rules and regulations.

Ellen teaches Building Science, Building Envelope, Water Conservation, Indoor Air Quality, Quantifying Energy and Green Building Plans at the 1,000 Green Supers program for The SEIU Local 32 BJ Thomas Shortman Training Fund.

Registered Architect, NY, NJ, CT
LEED Accredited Professional
BPI Certifications:
Building Analyst
Energy Efficient Building Operator
Multi-Family Building Analyst

Ellen Honigstock, LEED AP
Ellen Honigstock Architect PC
45 Main Street #806
Brooklyn, NY 11201
(212) 228-1585


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