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Sendero Verde, New York, NY

Sendero Verde Sets New Standard in Sustainable Living with eFlow-Constant Airflow Regulators, Becomes World’s Largest Affordable Passive House Development

In a groundbreaking achievement for sustainable urban living, Sendero Verde in East Harlem, New York City, has become the largest fully affordable Passive House building globally. Installation of eFlow-Constant Airflow Regulators throughout the building contributed to this remarkable milestone, marking a significant step forward in energy-efficient building design.

Project Overview:

Sendero Verde, a 709-unit development in East Harlem, is a testament to affordable, sustainable housing. Awarded through the City’s SustainNYC program, this mixed-use project is developed by a collaboration between Jonathan Rose Companies, L+M Development Partners, and Acacia Network.

Designed to accommodate over 700 families with diverse income levels, including the formerly homeless, Sendero Verde is a beacon of hope and innovation. Its focus is not just on housing but also on fostering community through its plaza, gardens, school, and retail spaces.

Innovative Energy Solutions:

eFlow-Constant Airflow Regulators: These regulators played an important role in achieving the Passive House certification, leading to a remarkable reduction in energy usage compared to conventional buildings.

Sustainable Design Elements: The project features a highly efficient, centralized energy recovery ventilation system, air-tight construction, triple-glazed windows, and individually heated and cooled units, all contributing to superior thermal comfort and indoor air quality.

Passive House Certification:

Energy Efficiency Standards: Sendero Verde meets rigorous Passive House standards, ensuring that it consumes only a fraction of the energy typically used for heating, cooling, and ventilation. This certification not only means lower energy costs but also a healthier living environment for residents, with consistent temperatures and improved air quality.

Design and Engineering Team:

Handel Architects, renowned for their sustainable designs, have played a crucial role in bringing this vision to life. Steven Winter Associates, Inc., as Certified Passive House Designers, alongside Mechanical Engineer: Cosentini Associates and DeSimone Consulting Engineers, have been instrumental in implementing the energy-efficient technologies.


Sendero Verde is not just a housing development; it’s a blueprint for the future of urban sustainability. By integrating the eFlow-Constant Airflow Regulators, the project ensures a balanced and consistent indoor air quality, crucial for the health and well-being of its residents. This technology, in tandem with the Passive House certification, means that Sendero Verde is set to provide a living environment that is not only energy-efficient but also comfortable and healthy. The significant energy savings from these initiatives benefit both the environment and the residents through reduced utility costs. Sendero Verde, therefore, stands as a testament to how innovative technologies and commitment to sustainability can harmoniously coexist, paving the way for future developments to follow this exemplary path of environmental responsibility and human-centric design.

Installation of eFlow-Products was undertaken by Rose Mechanical. The manufacturers representative, Mechanical Technologies,  facilitated the sale of eFlow products for this project.

Photo Credits senderoverdenyc.com

Visit eflowusa.net for product information and pricing or email [email protected]



eFlow-CAR is a simple solution to balancing ventilation systems. Constant Airflow Regulator is a device that automatically regulates airflows in ventilation systems to constant levels. The passive control element responds to duct pressure, and requires no electric sensors, pneumatic sensors or controls. eFlow-CARspromote high indoor air quality and energy savings.

  • UL 2043 Classified
  • Composed of fire resistant UL 94 ABS plastic
  • Diameters offered: 3”, 4″, 5”, 6”, 8″, 10″
  • Operating Pressure Range: 0.08 to 2.4 in w.g. (20-600Pa)
  • Airflow settings: 15-765 CFM
  • Temperature Limits: -22° to 140°F (-30° to 60°C)
  • Suitable for both supply and exhaust applications
  • No external power supply needed
  • Field Adjustable CFM set point
  • Capable of maintaining constant airflow within +- 5% for nominal airflow throughout the target operating pressure range of 0.08 to 2.4 in.
  • Standard for Energy Efficient Compliance



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