Beach Green Dunes II: Rigorous Passive House Design

Market: Multifamily
Type: Affordable mid-rise
Location: Far Rockaway, NY
Developer/Owner: L+M Development Partners, Inc.
Architect: Curtis + Ginsberg Architects LLP
Building Size : 121,000 ft², 127 units
Pending Certifications : Passive House Institute U.S.
Enterprise Green Communities

Project Background:

The L+M Development Partners have received Passive House certification for the Beach Green Dunes II project located in Far Rockaway, NY. This new construction project consists of one mid-rise 8-story building designed to the rigorous Passive House standard. Beach Green Dunes II is immediately adjacent to its PHIUS+ 2015 Certified Passive House sister project Beach Green Dunes I; these unique projects have implemented different envelope and mechanical system strategies demonstrating that there are multiple paths to Passive House Compliance.

As part of the post Hurricane Sandy re-development of Far Rockaway, NY, Beach Green Dunes II has integrated a robust resiliency strategy with a central focus on Passive House design. Located on an exposed coastal site, the building design includes a flood mitigation strategy to protect occupants, maintain building services, and decrease building damage in the event of a future flooding incident. The ground floor is comprised of tenant parking, a commercial space and a residential lobby completed with dry and wet flood-proofing, wall flood vents and a durable masonry wall type. The residential apartments are exclusively located on the second floor and above to help protect occupants during flooding.

Project Services:

Steven Winter Associated provided Green Building Certification and Energy Modeling to the project.

Primary Energy Conservation Measures:

  • The airtight and insulated Passive House envelope will help maintain habitable interior temperatures with or without power, creating an indoor environment where people can shelter in place.
  • To help maintain power, the project includes both a roof mounted photovoltaic canopy and a parking surface photovoltaic trellis.
  • The system’s design includes a ground source heat pump dedicated for space heating and cooling

In addition to meeting the PHIUS+ 2015 Passive House design requirements, Beach Green Dunes II is also designed to be compliant with Enterprise Green Communities, Energy Star V3, U.S. DOE Zero Energy Ready Homes, and U.S. EPA Indoor Air Plus co-requisite programs.

Read more about SWA’s Green Building Certification Services