Custom New Homes, Net Zero & Positive Energy Homes, Passive House Certified

Taft School Faculty Home

Taft passive house in CT

This is a four bedroom, two full and one half-bath home that was built for a Taft School faculty family, on a site that adjoins the campus.  A second major goal was to build the home to be an example and tool for the students to learn about green building.

Although it takes time to establish a home’s energy profile, it is expected that this home will achieve its net zero annual energy goal.

Type: New Construction, Custom Green Home


Project Architect: Trillium Architects

Special Features

  • Design and exterior finishes are historically accurate for the neighborhood
  • Open-concept living layout
  • 5” white oak floors
  • Built-in living room shelving
  • Custom kitchen and bathroom cabinetry
  • En suite master bedroom and bath
  • Finished and fully conditioned basement

Green Building Approaches

  • Rear of house faces solar south to capture winter heat
  • 406sf of east, south, and west-facing windows capture half of the energy required for space heating
  • 13.1kw PV panels on house and garage should provide more energy than the annual operating needs
  • 8” of EPS rigid foam board insulation under the slab
  • 3” of continuous closed-cell (low GWP) spray foam applied to basement walls
  • 3.5” of dense-pack cellulose between 2×4 studs on interior face of basement walls
  • 2×4 double wall framing to practically eliminate thermal bridging
  • 2” of closed-cell spray foam applied to interior face of exterior wall sheathing
  • Exterior sheathing includes 1” of polyiso rigid foam insulation to further reduce thermal bridging
  • 8.5” of dense-pack cellulose insulation completes exterior wall insulation
  • Attic floor is insulated with 24” of dense-pack cellulose
  • Acrylic sheathing tapes used to achieve exceptional air-tightness of 0.60ACH50
  • European triple-glazed aluminum-clad wood windows with u-values of 0.13 (roughly R-8)
  • Small ducted air-source heat pump heats and cools the entire house
  • No central heating or cooling required
  • Heat pump water heater extracts heat from interior air
  • Energy recovery ventilation has separate small diameter duct distribution system
  • Fiber cement siding installed over a ¾” drainage plane
  • Exterior trim made from recycled fly ash and rated for ground contact
  • 100% LED lighting
  • Low-flow water fixtures throughout


*The certification process for some green building standards can be expensive and time-consuming. Some BPC Clients opt to forgo the certification process for one or more standards they feel are unnecessary for their purposes.

Project Year
HERS Score
Type of Home
Project Size
3,600 sf