Meet the future of energy-efficient construction

Prefab building solutions for commercial, residential, and mixed-use new builds & retrofits.


Extend the lifespan & boost the value of your building while getting ahead of 2030 energy efficiency mandates.


Commercial & Mixed Use

Develop commercial & mixed-use buildings with lower operating costs & longer lifespans.


Multi-Family Residential

Build energy-efficient low and mid-rise residential buildings rapidly and sustainably.


The Better Path to Net Zero

Passive House design can reduce energy use for home heating & cooling by 80–90%, making it a better path to net zero.

Energy-Efficient Prefab Panels

Build faster and smarter with super-insulated prefab panels.
Passive House Principles

Discover the building science & benefits of Passive House design.

QP Model Homes

Find the perfect energy-efficient forever home for your family.

What Our Clients Say

At last I have warm feet. Nothing can get me out of this wonderful house again!…
Karin Pankoke
Living here is much easier than before, the maintenance of the house is just simpler, we don´t have to worry about heaters, filling the tanks with fuel or radiators.
Eva and Gabriel
Life in a Passive House has so far, surpassed our expectations
Ralph and Beth Peters
In this past year, with HST we have paid a total of $1872.63 for all of our electrical needs including our heating, hot water, and domestic electrical needs. For our 1950 sq ft home and our family of 6, I think we have done fairly well.
Ruth and Beth Peters, April 2016
I have enough fresh air even when the windows are kept closed.
Uschi L

Did You Know?

Buildings account for up to 40% of global energy consumption and contribute 30% of annual global greenhouse gas emissions.