There are several different ways we can work with you to help you create your dream home.  There are advantages to each approach; we can help you choose which way is best for you.

Envelope Only

As specialists in creating the highest performing building shells available, flat-packed and shipped, pre-insulated, to the job site on a flatbed trailer, we can build homes anywhere in North America. We send a supervisor or crew to assemble the envelope and air-test it to meet our stringent standards, all in a matter of days, leaving you with a high performance building shell in much less time than it would take to site-build a similar project.

Design by Architect, Build with Ecocor

Many of our clients come to us with homes already designed by architects or designers. We appreciate and enjoy these opportunities to work with design professionals. If they have not worked with us before, there may be some minor design changes required to fit our construction system, but we strive to stay true to the design intent. If your goal is Passive House performance and the design does not meet the target, we can suggest changes that are sensitive to the architectural language already in place.

Ecocor Predesigned Home

To tunnel through the cost barrier that often occurs with custom home design and to showcase what we think are attractive, efficient, extremely livable—and affordable—designs. They are pre-priced with standard details, and customizable to suit your needs. -> View our model homes


For local projects, we can manage the entire project from beginning to end, providing you with continuity and top quality craftsmanship throughout the construction process.

Custom Design|Build With Ecocor|RPA

We are architects as well as builders, and, to the best of our knowledge, have designed and built more Passive Houses than anyone else in North America. Instead of adapting/optimizing another design to meet the Passive House standard, we design with performance goals leading the way. We enjoy the design/build process and we take ownership all the way through the project. We listen to your goals and desires, and we take your budget very seriously. We have experience dealing with challenging building sites, all sorts of tastes and styles, and of course, top level building energy performance.


Some houses are good candidates for Passive House Retrofits. We have completed several such projects, using various methods, and we can discuss with you ways that your existing home might reach Passive House levels of performance. Passive House Retrofits can be difficult to justify using cost metrics alone, but they are a great way to reduce energy demand. As always, we pay close attention to building science to make sure your building envelope does not become a “vapor sandwich.” We leave you with a durable, resilient, low-energy home.

Passive House Consulting

We are Certified Passive House Designers/Consultants, earning our credentials from the stringent International Passive House Association, which trains the Designer/Consultant in building science and in the use of the PHPP (Passive House Planning Package), the most robust and accurate building energy modeling software available. We provide this service for our own projects but do not offer it as a stand-alone service at this time.

We're proud to announce that we are the first certified Passive House component manufacturer outside of Europe

Check out our Passive House Components. Our Panelized Construction approach to passive house building is perfect for all high performance building applications.