The simplest path to a net-zero home


Bright living space with extensive 2nd-floor master suite

Clerestory windows reflect light deep into the interior and create wonderfully sculptured light gradients along the white, reflective walls of the Demarest home. Designed to flow onto the western deck, this home balances high ceilings to create space in the kitchen & dining areas with a lower ceiling in the living room to give it that cozy, intimate feel.

The 2nd-floor main master bedroom is also oriented to the west, and, with the addition of clerestory windows, features stunning sunset views throughout the home. The master bedroom located on this floor connects privately through the Jack-and-Jill bathrooms & shared closet, creating your own private retreat whiten the home.

A choice of main entrances means this house to fit onto most lots and allows you to orient the structure as you see fit. 

E_5 - Photo
E_1 - Photo
E_4 - Photo
E_3 - Photo
E_2 - Photo
D5_Image 1_20230113_181407
D5_Image 3_20230113_180643
D5_Image 4_20230113_180312
D5_Image 6_20230113_175604
D5_Image 2_20230113_181020
D5_Image 5_20230113_175940
D5_Image 7_20230113_175306

Plan Details

1,950 square feet


1st floor aging-in-place

High kitchen/ dining room

Kitchen island/ bar

Clerestory daylighting

West facing

Two-bedroom second-floor master suite

Environmental Modern Features

  • Affordable net-zero or net-positive design
  • SIPs shell: 6.5” walls & 12.25” roof
  • Extreme R-Values: Walls R-24 | Roof R-50
  • SIPs roof creates vaulted ceilings
  • Vinyltek triple-pane windows (U-14 to U-16)
  • Post & beam construction allows easy future remodels
  • 4” Slab-on-grade floor for thermal mass
  • 4” R-20 under-slab insulation
  • NuDura insulated concrete forms (ICF) foundation
  • Optimized south-facing glazing & optimized daylighting
  • Built Green certified
  • Heat pump heating & heat pump hot water
  • Heat recovery ventilator recovers a minimum of 80% of energy from outgoing air
  • Designed to include rooftop solar panels, EV chargers, ATX low voltage lighting, and other sustainable features (sold separately) 


  • Exterior Wall Package
  • Exterior Roof Package
  • Roof Support Beam Package
  • Weatherization Package

Not Included:

  • Final Roofing Material, residential doors, Windows
  • Floor System Package
  • Interior Walls & Exterior/Interior Finishes
  • HVAC, Plumbing, & Electrical
  • Site Prep, Foundation systems, Utility Hookups
  • Installation

Featured Sirius Build

Ready to get started on your project?