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Carnegie Hill Passive House
Carnegie Hill Passive House
Manhattan, New York, NY, United States
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Other Projects by Henson Architecture
Carnegie Hill Passive House
Manhattan, New York, NY, United States
Firm
Type
STATUS
Built
YEAR
2025
SIZE
1000 sqft - 3000 sqft
BUDGET
Undisclosed
Located in Manhattan’s Expanded Carnegie Hill Historic District, this three-story brownstone and its adjacent sister building were designed and constructed in 1877-78. Since that time, previous renovations altered the interior considerably. On the exterior, the masonry openings at the rear façade had been widened. Windows had been replaced, and the brownstone façade had been repaired with stucco.
This townhouse restoration was designed to address needed repairs, update and improve upon previous interventions, and provide the new owner with a comfortable, quiet, and elegantly understated retreat, a canvas for their lives in their vibrant city.
The townhouse was meticulously restored on the exterior. Lost details were replicated and a tranquil roof garden was added. The interior was designed with a clean, minimal aesthetic. A large new skylight brings more daylight to the interior and a new stair provides roof garden access. A walkable skylight at the garden level terrace brings daylight into the cellar.
The project was certified to meet the rigorous International Passive House Institute’s EnerPHit standard, a quantifiable set of performance metrics. The owner understood the value of Passive House Certification, in that it provided improved indoor air quality, quiet acoustics, consistent comfortable temperatures, and energy efficiency. The architect’s team paired the core Passive House strategies with their extensive preservation expertise to ensure that the standard was met appropriately in this context.
Care and precision are required for both successful preservation and the exacting Passive House metrics, which are tested and verified for certification. The team excelled at this attention to detail on both accounts. This project demonstrates the compatibility of exceptional comfort, health, and energy performance with historic preservation. It is a model of careful retrofit as a critical approach to continued stewardship of our city’s heritage and livability for future generations.
This townhouse restoration was designed to address needed repairs, update and improve upon previous interventions, and provide the new owner with a comfortable, quiet, and elegantly understated retreat, a canvas for their lives in their vibrant city.
The townhouse was meticulously restored on the exterior. Lost details were replicated and a tranquil roof garden was added. The interior was designed with a clean, minimal aesthetic. A large new skylight brings more daylight to the interior and a new stair provides roof garden access. A walkable skylight at the garden level terrace brings daylight into the cellar.
The project was certified to meet the rigorous International Passive House Institute’s EnerPHit standard, a quantifiable set of performance metrics. The owner understood the value of Passive House Certification, in that it provided improved indoor air quality, quiet acoustics, consistent comfortable temperatures, and energy efficiency. The architect’s team paired the core Passive House strategies with their extensive preservation expertise to ensure that the standard was met appropriately in this context.
Care and precision are required for both successful preservation and the exacting Passive House metrics, which are tested and verified for certification. The team excelled at this attention to detail on both accounts. This project demonstrates the compatibility of exceptional comfort, health, and energy performance with historic preservation. It is a model of careful retrofit as a critical approach to continued stewardship of our city’s heritage and livability for future generations.
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