Climate Action, Building By Building

Today you can build a healthy zero carbon building that makes economic sense.

Why Work With Us

We provide you with a rare commodity in green development: certainty. Our approach to zero carbon building design and execution reduces uncertainty because it’s grounded in Passive House physics and sound economics. You will know what performance to expect from your building.

Our Approach
What We Do

Our mission is to design zero carbon buildings that transform the market through superior value. We specialize in multifamily and urban infill projects, though our work includes all building types from single family homes to complex commercial projects.

Blog – 06/19/18
Brandon Nicholson explains Passive House to CBS
Blog – 07/20/18
Ice Box Challenge DC completed by the EU, Belgium, Golden Triangle, and NK Architects
by Zack Semke
Park Passive
Seattle, WA (2013)
Passive House
Energy Performance
Blog – 07/05/18
Seattle’s 1st Passive House Apartment Building Nears Completion
by Zack Semke
Blog – 01/15/18
Study: Air Quality in Passive House Schools Supports Learning
by Zack Semke
PHun Fact

We employ more Certified Passive House Designers (CPHDs) and Consultants (CPHCs) than any firm in the Western Hemisphere.

Blog – 01/10/18
Got a Noisy Site? Passive House Brings Peace and Quiet
by Zack Semke
View All Projects

Who We Are

Nicholson Kovalchick (NK) Architects is a group of design and energy nerds: architects, engineers, and energy modelers who love working hard to raise the triple bottom line. We believe that together we can address climate change, one building at a time. 

Our People

We have worked with NK Architects on several projects spanning 10 years. We are now doing another Passive House development project with NK, and we keep coming back. Their commitment to true high-performance building design is outstanding; they are completely dedicated to cutting edge methods, training and continual learning.”

Sloan Ritchie: Owner, Cascade Built