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December 9, 2014
The Passivhaus Institut in Darnstadt, Germany, announced today that a million square meters of interior space—or nearly 10.8 million square feet—have been certified as having met the passive house standard. The threshold was crossed with the certification of a renovated Arts and Crafts-style house in Santa Cruz, California, dating to 1922, the institute reported. Passive houses are “zero-energy” structures that have no active heating or cooling systems and maintain a comfortable interior temperature through a combination of an airtight envelope and a heat-exchange system. “The primary purpose of certification is quality assurance,” says Zeno Bastian, head of building certification for the Passivhaus Institut. “With this internationally recognized seal, building owners are safe in the knowledge that the desired savings for heating costs and added benefits of a passive house will actually be realized.” Click through the slideshow for images of structures that the Passivhaus Institut named as finalists and winners of its 2014 Passive House Awards.
Passive House in Park Slope, Brooklyn

The Passivhauy Institute named this 3,120-square-foot 19th-century brownstone building in Park Slope, Brooklyn—the first certified Passive House in New York City—the winner in the retrofits category of its 2014 Passive House Awards. Fabrica 718, an environmentally focused Brooklyn design practice, renovated the house starting in 2009.

Photo by 
Originally appeared in Passivhaus Institut Announces 2014 Finalists
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Glendowie House, Auckland, New Zealand

This single-family house in Glendowie was New Zealand's first passive house. Designed by Jessop Architects, it was a finalist in the single-family home category.

Courtesy of 
ECOWINDOWS, Raglan, New Zealand
Originally appeared in Passivhaus Institut Announces 2014 Finalists
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Oravarinne Passive Houses, Espoo, Finland

Kimmo Lylykangas Architects designed three two-story passive houses in Espoo, Finland, near Helsinki, as a pilot project for the Finnish social housing company TA Asunnot. It was a winner in the single-family homes category.

Courtesy of 
Kimmo Lylykangas Architects
Originally appeared in Passivhaus Institut Announces 2014 Finalists
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Belfield Homes, Philadelphia

The three units in the Belfield Homesare the first certified Passive House homes in Philadelphia. Designed by Plumbob, the project is a model for low-income urban infill development, providing sustainable homes for those who can least afford to absorb rising energy costs. It was a winner in the single-family home category.

Photo by 
Originally appeared in Passivhaus Institut Announces 2014 Finalists
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Seminar and apartment building in Goesan, South Korea

ArchitekturWerkstatt Vallentin designed this seminar and apartment building in Goesan, South Korea, which was named the winner in the educational buildings category.

Courtesy of 
ArchitekturWerkstatt Vallentin
Originally appeared in Passivhaus Institut Announces 2014 Finalists
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Boyen Street Zero Emission Building, Berlin

This multi-family structure in Berlin, designed by Deimel Oelschläger Architekten, was the winner in the apartment buildings category.

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Deimel Oelschläger Architekten
Originally appeared in Passivhaus Institut Announces 2014 Finalists
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Artist Studio, Orient, New York

Ryall Porter Sheridan Architects designed this artist's studio in Orient, New York, on the North Fork of Long Island, to conform to Passive House standards. It was a finalist in the office and special-use buildings category.

Photo by 
Originally appeared in Passivhaus Institut Announces 2014 Finalists
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Passive house in Sint-Niklaas, Belgium

   This house in Sint-Niklaas, Belgium, designed by BLAF Architecten, was a finalist in the single-family homes category.

Courtesy of 
Blaf Architecten
Originally appeared in Passivhaus Institut Announces 2014 Finalists
8 / 8
Passive House in Park Slope, Brooklyn

The Passivhauy Institute named this 3,120-square-foot 19th-century brownstone building in Park Slope, Brooklyn—the first certified Passive House in New York City—the winner in the retrofits category of its 2014 Passive House Awards. Fabrica 718, an environmentally focused Brooklyn design practice, renovated the house starting in 2009.

Photo by Hai Zhang.

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