Project 580Indiana’s First Certified Passive House

Indiana's First Certified Passive Home


Delv Design


  • 2800 square feet, above grade
  • 1400 square foot full, unfinished basement
  • 2.5 Bathrooms


  • HERS Rating 29
  • PHIUS+ Certified
  • LEED GOLD Certified
  • Nearly Net Zero, all electric house with 6 kW Rooftop Solar Energy System
  • Insulated Concrete Form (ICF) foundation and 8” of under-slab insulation form a fully insulated building envelope. R-36 Below Slab R-40 Foundation Walls
  • 12” Exterior Walls made of prefabricated Structural Insulated Panels (SIPS)
  • Airtight construction with high insulation values – R-52 Walls and R-74 Roof
  • High Performance, Triple Pane, R-7 Windows from Poland designed for Passive House standards
  • Heating & A/C system designed to be 90% smaller than traditional
  • Constant Fresh Air Intake
  • Designed to maximize South solar heat gains

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