Greenhouse Gas Reduction

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A gut renovation of a single-family Victorian home met Passive House Plus performance levels by installing efficient equipment, achieving an impressive degree of envelope airtightness, and adding a solar PV array.

This Building was the first certified Passive House in New York City, it is a gut renovation of an 1899 brownstone. It won an International Passive House Design Award and included a third story addition and a new rear façade

This affordable housing gut renovation meets the Passive House standard to produce comfortable, healthy, and energy efficient homes for the tenants, many of whom have lived here for more than 20 years.

The combination of focused Passive House construction techniques and careful restoration of historical detail during this gut reconstruction project gave new life to an Upper West Side renaissance revival row house.

Passive house renovation ofMixed-use brownstone building in Cobble Hill Brooklyn

Work in progress passive house renovation of 1/2 family house in Greenpoint Brooklyn

Passive House conversion of a 2 family, 3 story building to 4 family use. A complete interior renovation and reconfiguration that resulted in each unit feeling even more spacious than in its former 2 family use.

Brooklyn townhouse gut renovation with full rear horizontal and vertical addition, and application of Passive House principles. Innovative use of insulated CMU blocks to address lot line construction feasibility, performance and fire-rating requirements. Exploration in using basic, modest cost materials to create unique aesthetic characteristics while maximizing energy efficiency.

Two family townhouse gut renovation and addition, utilizing certified Passive House windows, solar orientation strategy, optimization of thermal performance for the new addition and mitigating thermal bridging.

The 4600 square foot townhouse was designed to showcase the vibrancy of NYC with modern design and décor, and yet maintain its organic connection with the neighborhood.

This landmarked townhouse was fully renovated to meet EnerPhit, the Passive House standard for renovations. Special attention was paid to the insulation and air sealing of the elevator and roof.

This deep retrofit of an Upper West Side brownstone in a NYC landmarks district negotiated a full façade and stoop restoration while achieving Passive House certification.

The Alloy Block houses two public schools: a new elementary school PS456, The Elizabeth Jennings School for Bold Explorers and a new home for the Khalil Gibran International Academy.

Aspiring to be the tallest passive house in the world, One Third Avenue is a mixed-use tower situated on the westernmost portion of the Alloy Block and will include market-rate and affordable housing, retail and commercial office space.

New York City's first all-electric and passive house skyscraper.  A mixed use tower with 440 market rate and affordable homes and retail spaces along Flatbush Avenue. The building is the first tower of phase 1 of The Alloy Block and was completed in Spring of 2024

Located along the beachfront in the Rockaways, Beach Green Dunes I (completed in 2019) and Beach Green II (completed in 2020) deliver 228 sustainable and resilient affordable units to a neighborhood with a high risk of flooding. The Building is oriented to allow for the majority of the units to have views to the Atlantic Ocean.

LaMora Senior Living is a 60 Unit MF Affordable Senior Housing. The building is 5 stories and features 57 1-bedroom and 3 2-bedroom apartments.

This award-winning, 57,675 sf, 8-story 68-unit affordable housing apartment building for low-income seniors meets the NYSERDA Multifamily Performance Standards for Energy Star Certification as well as the Enterprise Green Communities Criteria. It is one of the first affordable senior housing development in the United States to meet the Passive House Institute design standards.

The developer Alloy was sensitive to the industrial warehouse context which includes the City’s first reinforced concrete buildings. The facade is clad with tensile Ductal concrete panels, a contemporary concrete technology which compliments the tone and texture of the neighboring buildings

Chestnut Commons provides affordable housing for formerly homeless and low-income households. 275 affordable housing apartments are supported by an integrated programming package, including communal spaces. The project integrates a satellite Community College campus, a food manufacturing incubator that provides job training, and a credit union.

The building is the first Passive Plus House built in the United States–included a rehabilitation of a townhouse built in the early 1900’s. The work respected the original historical architecture of the main building and restoration of the front façade, while adding a new third floor with a mansard.

The goal of this project was to implement a certifiable passive house project that met requirements set forth by the NYC Landmarks Preservation Commission, while also maintaining high attention to detail and thoughtful design. Most of the exterior detail at the front façade remained intact, the interior historic detail had been previously removed.