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Back Bay Passive House

2015 - First passive house project in Back Bay Boston.   The deep energy retrofit deployed non foam-based, vapor open assemblies, sensitive to 19th masonry brownstone construction.  The design and construction incorporated a new 5th story penthouse using the first known application of a thermally broken passive fire wall in MA, new state of the art building and automation systems, continuous fresh air, and contemporary interior finishes.  

Performance Index

EUI:  9.5 kBtu/sf/yr

Infiltration:  0.87 ACH50

Photography  Jane Messinger

Group Design Build Passive House 1
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Group Design Build Passive House 17
Group Design Build Passive House 16
Copy of Passivehouse Stair 9
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Group Design Build Passive House 19
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Group Design Build Passive House 22
Group Design Build Passive House 3
Group Design Build Passive House  4
Copy of Passivehouse Room 1
Copy of Passivehouse Room 3
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Group Design Build Passive House 26
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Group Design Build Passive House 10
Group Design Build Passive House 8
Copy of Passivehouse Room 2
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Group Design Build Passive House 14
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Group Design Build Passive House 29
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Cambridge Net Positive Passive House

First Certified Passive house in the City of Cambridge MA.  Project certifications include PH Certification, Net Positive,  Indoor Air-plus, LEED Platinum,  and a Building HERS Score of -11.   Design strategies included developing a subtle street presence, capturing sweeping vistas along the rear, and maximizing natural daylight for a 4 bedroom and aging in place ground level. 

Performance Index

EUI:  -3.7 kBtu/sf/yr

Infiltration:  0.67 ACH50

Photography Keitaro Yoshioka

Fall Exterior Rendering
Passivehouse 29 Bellis Exterior 2
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Passivehouse 29 Bellis Facade Detail 2
PassiveHouse Floor Plans 29 Bellis
Passivehouse 29 Bellis Exterior 1
Passivehouse 29 Bellis Deck Nighttime
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Passivehouse 29 Bellis NanaWall 1
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Passivehouse 29 Bellis Kitchen 1
Passivehouse 29 Bellis Living 1
Passivehouse 29 Bellis Main Stair 2
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Passivehouse 29 Bellis Main Stair 1
Passivehouse 29 Bellis Hallway 1
Passivehouse 29 Bellis Kids Bedroom 1
Passivehouse 29 Bellis Study
Passivehouse 29 Bellis Kids Bedroom 2
Passivehouse 29 Bellis Bath 2
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Passivehouse 29 Bellis Master Bath 1
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Passivehouse 29 Bellis Master Bed 1
Passivehouse 29 Bellis Master Bed 2
Passivehouse 29 Bellis Master Bed 3
Passivehouse 29 Bellis Deck Detail 1
Passivehouse 29 Bellis Deck Detail 3
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