Long Island Passive House

Front rendering

Long Island Passive House

Back rendering

Long Island Passive House

Front sketch rendering

PH wall assembly

PH walls vs regular walls

PH Concepts

Passive House concepts



A beautiful but crumbling 90-year-old waterfront estate gets a new lease on life courtesy of its adventurous owners, Acme Architecture and PassivHaus design principles. The first floor features an open living and dining room with waterfront access via a 20' wide sliding glass door, chef's kitchen, library with specially designed fireplace (usually impossible in passive houses), ADA-accessible guest wing, laundry and two half bathrooms. On the second floor, a master suite with attached study anchors the south wing of the house, with 3 additional bedrooms, 2 additional bathrooms and a full laundry suite on the north wing. The vaulted 3rd floor multipurpose suite features a full spa bathroom, sauna and zero-threshold sliding doors leading to a waterfront deck—perfect for laying out the yoga mat. Large, triple-glazed, high-heat-gain windows allow us to maximize the limited solar exposure of the site due to tight lot lines, large trees and an existing footprint.  Shou Sugi Ban (charred wood) siding provides natural protection from rot and pests in a stunning, modern package; it’s a welcome reminiscence of the house's original cedar shingles, which aged to a cool grey over time.  Stay tuned for construction updates! 



  • Bedrooms: 6 + multipurpose

  • Bathrooms: 8

  • Area: 5,600 sf


Passive House Features

  • Air tightness: 0.6 ACH or better (design value)

  • Insulation: Slab, exterior walls and roof R-50+

  • Windows: Triple-glazed, high SHGC

  • Ventilation: Heat recovery ventilation system


Long Island, NY