A Certified Passive House or Passivhaus, as it's known in Europe, is not the same as a passive solar design of the 70's and early 80's. Passive Houses today are wonderfully simple to own and maintain, and they work exceptionally well in our rainy PNW climate as well as all other climate zones, due to sophisticated design tools, we can tailor the home to your specific micro-climate. See our Q&A's.
“When it’s very very cold, I can make a cake…!” [video]
“Heat Your Home for $1.63 per week!” [blog post]
Simplicity, flexibility, energy-independence, freedom from high utility bills, comfort, beauty, and endurance.
That's a Certified Passive House, very simple, very elegant.